Air Fuel Ratio Tuning of the 5 - 8KW Diesel Heater / Stage one using AFR gauge

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Ok, so I only got the maximum power tuned in this video. But I will get the low power dialled in soon.
Best AFR with no smoke I got was 15.5 @ 5000 rpm and a pump speed of 7Hz. This was with a 22ml pump.
Your results may vary on your heater, installation, etc.

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28 сен 2024

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Комментарии : 392

@andrewbartleman9169 4 года назад

For anyone wanting to copy his numbers.. his numbers wont work for everyone. There is differences in the heaters ,burner tube construction, fuel pump, the combustion fan gap map be different, and exhaust intake and elevation all effect your clean burn settings. We see people trying to use others settings all the time and have high carbon monoxide so their heater soots up. Unfortunately you have to do your own for optimal burn.

@DavidMcLuckie 4 года назад

I've pinned this so people will see it better. Andrew is spot on, these numbers might not be ideal for your setup. I'm going to use a CO meter in the next video to see how this relates to the AFR, this is interesting.

@andrewbartleman9169 4 года назад

@@DavidMcLuckie thanks David. I am interested too

@ericdee6802 3 года назад

@@DavidMcLuckie What is your Altitude (feet above Sea level)? Just curious.✌️

@coachk7674 2 года назад

I missed how you got into the settings adjusting I am at 9400 feet

@rhiantaylor3446 Год назад

It will also vary with fuel type so if you are blending used sump oil or vegetable oil with petrol/methanol/kerosene you should aim for consistent proportions and use this video's technique to calibrate the heater.

@tonythorrington3740 4 года назад

I have been fitting these of various quality for a couple of years and I have 2 myself ( loving your videos by the way ) I have the one in my work van set to 1.7hz low 5.2hz on high (pump)the fan speeds are 1900low and 4410 on high I have stripped the unit out once to have a look at the soot build up and was amazed at how little there was after a year and a half about half a teaspoon of that much !!! The workshop one i have set to 2.5hz low and 5hz high / fan on 1900 low and 4300high ( seems to run hotter but I need it as no insulation ) also both units are the 5/ 8 KW ones I hope this may be some kind of help or to build up some info keep up all the brilliant content

@Nerd3927 Год назад

Thanks!

@v8snail 4 года назад

Regarding pump capacities for those interested, the ml rating stamped on the pump body refers to how many millilitres are delivered per 1000 pump strokes. So ml per hour can be calculated using Pump Capacity (ml per 1000) x Hz x 3.6 (3600 secs per hour/1000 strokes per capacity) For example, a 22ml pump at 5Hz = 22 x 5 x 3.6 = *396 ml/hr* +/-5% accuracy.

@nomadchad8243 2 года назад

is that a microliter or a picoliter?

@v8snail 2 года назад

@@nomadchad8243 A 22ml (millilitre) capacity pump, a measurement in ml per 1000 strokes, will deliver 22μl (microlitres) per stroke.

@lanceboudreau3630 Год назад

My diesel heater ( hcalory Hc-A01 has a setting that you could change the pump size does that mean I could make it burn more fuel making it put out more btu’s it ranges from 16 up to 65 I believe

@v8snail Год назад

@@lanceboudreau3630 The ratio of fuel and air needs to remain correct. If you jam in more fuel you need to increase the airflow accordingly. Your unit may not allow for that.

@Simon_Rafferty 2 года назад

I went through a similar process, using a wide band Lambda sensor, connected to the Arduino (ESP32) that was controlling the heater - trying to make it run closed loop (auto adjusting the AF Ratio). What I found however was that immediately after a fuel pulse is injected into the heater, it runs rich, leaning off towards the next pulse. Somewhere in the middle it (should) get to 14.7. You can kind of see this on your meter with the value dancing around. I assumed that if I averaged the O2 reading over the time between fuel pump pulses, and drove the average towards 14.7 it would be about right. Unfortunately, this resulted in gouts of smoke from the exhaust. The profile of the burn (from the O2 readings) was non linear. It also varied with - well, everything! Fuel pump speed, fan speed, heater temperature, ambient air temperature, day of the week..... Using a simple average didn't work. Nor did any of the other algorithms I tried. After a week or so of experimentation, I found the results were no better than tuning it by eye for minimum smoke! I gave up on the Lambda sensor idea!

@DavidMcLuckie 2 года назад

The only other though I had was to make the exhaust gas fill a larger volume to try and average out the spikes. I was trying to imagine how a car ECU would do it. Would we also need to add a MAF to measure the air intake volume and have it do the maths based off of air quantity coming in, fuel required to burn stoichiometrically, and then use the lambda sensor for error correction? I can see this becoming a very complicated way of controlling a simple heater. But boy you could get it to be efficient. :) Stage one would be getting a useful and reliable reading from the lambda sensor.

@Simon_Rafferty 2 года назад

@@DavidMcLuckie There has got to be a solution! Not sure a MAF would give you much more than the fan speed, though I guess it would account for air pressure & temperature. I think I was concentrating too hard on getting a perfect 14.7 ratio, rather than looking at what average value coresponds to it running nicely. I like your approach of using a CO meter (in a different video). I wonder if that might be a better metric to tune it by, automatically?

@dm1126 2 года назад

Finally tinkered with the controls... Been running my 5-8 kw heater for over a year on the factory settings but needed a better air flow to circulate around my caravan. Used a set from another youtube video ... and so far seems to have improved the heat output and smell from exhaust (outside the caravan) When it starts up Set range 1.0 to 3.0 hz And fan at 2050 to 4550 I use the lower settings and run the heater all night in my caravan Still cold here in NZ frosts this week Always enjoy the content Cheers Dave

@rednecktek2873 4 года назад

Please do the smaller unit too, I really need to tune mine. :/

@wouldliketosleep.2845 2 года назад

Hellooooooo . I bought the 5 kw all in one . It is the taller one and hope it works as well as what they say . I havn't tried it as of yet . I am hooking it up to a Deep cycle marine battery . Battery was actully more then the heater . Thanks for sharing the knowledge with them . Take care . Cheers .

@andrewbartleman9169 4 года назад

We usually keep the max fan speed under 4500 or around there. The fans don't last long over 4500. And we will tweak the fuel only. The problem with running rich or cold is they soot up. No one enjoys cleaning these heaters when they actually use them for heat for hours or months at a time. You want the case temperature to be over 150°c for low setting and over 180 up to 215°c for high. And yes you can tune it while it's running by the way..

@barrydwernychuk3902 4 года назад

Agreed: limit the fan rpm to 4500! I tweaked my unit to max settings of 5000 rpm and 6hz. Noticeably hotter output air temperature with no smoke so good guess on the combustion side. However, the fan motor self-destructed after an hour's total run time, over about 6 start cycles. Huge PITA getting this sorted with the vendor and Amazon and had to cancel a boat trip because of no heater, plus massive job getting dead heater out of the boat.

@oojimmyflip Год назад

have you any ideas on the ideal case temps for the 2kw heaters Please? im running mine at 2.0Hz with one red bar on the lcd controller screen but the core is only acheiving around 107 degrees C and the exhaust silencer seems cold to the touch even though the exhaust pipe itself is insulated.

@caseyrayman2364 2 года назад

I didn’t hear you mention it in the video but those gauges actually measure lambda and convert that to AFR. So if that gauge is setup for gasoline(most are by default) then stoichiometric(lambda=1) is 14.7. Even though diesel is 14.5:1 you still want to see 14.7:1 on the gauge if it’s set for gasoline. So you may be just slightly richer than you thought.

@DavidMcLuckie 2 года назад

Excellent point. One day I want to revisit with a better exhaust setup.

@hillonwheels8838 4 года назад

This video is just perfect timing. I just got a brand new 5kw heater and it keeps over temping e-05 code and has a constant little bit of white smoke coming out of exhaust. I have checked the intake and exhaust for combustion for anything being stuck and same with the vent. Now I have a better idea of how to adjust the settings to get mine to work.

@ultravoxa 2 года назад

I twisted a ball of 5m 0.25mm nichrome wire and placed it in the combustion chamber to expand the heat zone. Fuel vapor burns better as it passes through the high temperature zone. The effect was staggering. The fuel supply had to be restricted as it started to fail due to overheating. An aquarium metal tap had to be installed to limit fuel supply by 50%. Then the output has a 143c airflow at 1.6Hz and with 5l running in 27h in my variant. The fuel burns so well that there is almost no smoke from the exhaust pipe, only weak steam. I suggest you give it a try.

@Yankeeprepperasshat Год назад

Would heating element wire from dead heaters or toasters work? Or what about super coarse stainless scouring pads? Would help resist airflow, which is what you want anyways. But maybe the stainless will break down after a few months and the nichrome wire won’t. Could I use slightly thicker or thinner wire? I was thinking 28 gauge is just a bit thicker and would hold the heat a tiny bit longer. Might help prevent flameouts or interruptions if the air mixture isn’t perfect. Might even be worth replacing the glow plug screen with a homemade sleeve made from ni chrome, since the screen seems to clog up easily

@ultravoxa Год назад

@@Yankeeprepperasshat Nothing critical here. The wire can be both thicker and thinner just to keep the high temperature. You can do it differently. It is necessary to cut 9-11 notches about 1.5 cm deep at the exit of the combustion chamber and bend them inward while forming the jet vector. A good, stable fuel pump is essential. Then play with the fuel delivery amount using a small tap. Aquarium metallic tap is well. In my case, the exhaust port of the combustion chamber is reduced by about a third. On 2.4 hz 5L for 25h Fuel tap open 45%. No smoke, just steam.

@Yankeeprepperasshat Год назад

@@ultravoxa I don’t understand the instructions about cutting notches. I really wish I could talk to you somehow or see a picture. How deep in the combustion chamber do you shove the wire? Throughout the entire depth of the chamber? Or at the deep end only, where the fuel ignites? Or are you only capping the open end of the combustion chamber and leaving the rest open, to swirl gasses uninhibited, and the wires are acting like the gas lamp element on the combustion chamber exit? Please be more specific. I’m VERY interested in your mod. Also, why restrict the air when you can just turn your fan speed down? Didn’t you say you were restricting both your fuel and your air? Why not just turn them both down on the controller?

@Yankeeprepperasshat Год назад

@@ultravoxa I ended up pulling a bunch of coiled up nichrome wire out of a dead mini-hair dryer, and stretched it out so it’s still a coil, but a lot longer. Probably 25 feet long. I wound it up into a ball and pulled it apart into an elongated but equally dispersed mess and shoved it into the combustion chamber. The back of it is touching the deep end where the glow plug is. The other end is sticking out of the combustion chamber an inch, so it will actually touch the heat sink where the gasses roll around and back towards the exhaust pipe. Is that going to work?

@Yankeeprepperasshat Год назад

Oooooh. When you said “cut notches 1.5vm deep and bend them” I thought we were taking about nichrome wire and I couldn’t figure it out. I read your message a hundred times. But I just now resides I think you were describing turning the end of the combustion chamber into a nozzle. Right? Had nothing to do with the nichrome wire. Next time I take it apart to inspect or clean, ill try that. But I’m now getting excellent results with my nichrome and regular settings at H3, as long as I preheat my waste oil. I’m actually pretty happy with my system. Getting as much free hydraulic fluid as I want. Stocking up tomorrow. They have 14 barrels of clean oil waiting for me. Can’t wait to snatch that up. All I’ve been burning was dirty synthetic oil and it’s working great. And I’m told that the hardest stuff to burn..

@dr_jaymz Год назад

I found this very interesting, its an oldish video but here are many tinkering this year. I think though that the unit should be run much leaner than the Oxygen sensor would suggest. If you were injecting into a cylinder you want all the fuel to burn with all the air then 15:1 is what we're after. But if its a flame in a wind tunnel then there is going to be a lot of excess oxygen and so you'll struggle to get near 15:1, and the only way you will is by burning it downstream like in the exhaust. I am not surprised it smokes. On a more recent video you cut the combustion chamber open, and that showed a Bunsen burner blue flame which shows its pretty close to ideal, too lean and it will struggle to stay lit or will be in patches and if its yellow its too rich and that will deposit soot. So for reasons I can't really back up, I think that it will work best much leaner

@scotnorth Год назад

Great videos on the Diesel heaters David keep them coming Would really like to see a video for a 2kw Fan speeds and fuel feed rates Regards Ronnie

@philcross7315 4 года назад

For what it's worth, when I was truck driving, that noise it's making is the same as the thousands of them I heard running sweet. Go to any truck park in the winter, you'll hear them ticking over the same.

@andrewbartleman9169 4 года назад

That low speed resonance was not a good burn. When you hear that sound the mixture is off or the heater is sooting up inside. But I think he was too lean

@andrewbartleman9169 4 года назад

Most everyone tunes a diese heaterl by the carbon monoxide.

@philcross7315 4 года назад

Just an observation really. Obviously, with the correct test gear, it could be set up perfectly, but that noise wasn't unusual. I should say though, that it wasn't a pulsing noise.

@andrewbartleman9169 4 года назад

@@philcross7315 it's not unusual.. but you will hear a perfect burn. Think of it as a torch. If it's doing the pulsating it's not burning proper

3 года назад

Stoichiometric AFR on diesel means it just start to produce soot this is why diesel engines are usually run lean. Diesel tuners like Banks say no less than 17:1 AFR adds the best performance IMO the CO meter aided fine tune is more accurate

@Estabanwatersaz 4 года назад

Very informative and educational. Thank you 🙏 sir.

@TheSdheights 2 года назад

I've collect imperfect data from various sources, including the comments from this video and my setup, which works fine. The average tuning parameters show a general trend of LOW: 1Hz @ 1000 rpm. HIGH: 5Hz @ 5000 rpm. Draw a line on graph paper and then chose your desired upper and lower points based on the limits of your specific heater. My setup is 1.4Hz @ 1500rpm and 3.5Hz @ 3500 rpm. So far so good as it's oversized for the space and I've turned the upper limits down.

@oojimmyflip Год назад

at which Hz setting do you tick over at when up to temperature and what is the core temperature at full chat with your lower settings please? Im asking for shutdown and startup temperature reasons, thanks. your revised high setting is similar to that of a 2kw heater so im wondering if the burn chamber reaches a similar core temperature to that of the 2kw heater, if the ecu's are the same and the controllers are the same im guessing it must be around 120 degrees C at full chat I am also wondering if the sixe of the burn chamber makes a marked difference in the core temperature. if the highest setting on the 2kw is 3.1 Hz and the electronics are the same it is fairly reasonable to assume that the 5kw will stay clean shutting down at only 3.5 Hz if the core temperature is high enough, this could greatly reduce wear and tear on the internal componants like the motor and bearings. I am about to install a 5kw outside a caravan heating outside air and these settings you use may be very helpful to reduce fuel consumption and over heating inside the caravan. I shall test run it tommorrow with your settings.

@HavingWandered 2 года назад

This is great info. I got the dial controller to save myself from going down rabbit holes ;-)

@SamWolfandCo.fossickandfind Месяц назад

My brain is hurting, make it stop Please !! I have a 5Kwatsit my settings were trial and swear a bit then try it again ,Hang about I'll double check, Yep 2500 and 5000rpm/2.5Hz low and 3.8Hz high and I have 32degrees no black smoke on start up and I have run at those settings for almost 18hours non-stop and about 7-8litres of fuel/ diesel which is from a dodgy servo that sells crap tastic discount fuel. I'll give you more info when I get worried. I have the 8Kw version on the way so that can of worms will be my next trauma by trial and swearer. Appreciate the time and effort you put into this Mate Cheers👍👍👍😎💨🏴‍☠☕☕☕☕🔧💡

@fisherkieds6282 8 месяцев назад

I had an issue with my cheap 2kw diesel heater,I put into high altitude mode that slowed the fuel pump and now it works like a champ....I'm at sea level

@timk404 3 года назад

You dont want to tune diesel in this or really any application to actual stoichiometric values. Simple fuels like methane, natural gas, propane and even more complex fuels like gasoline can be tuned to a lambda value of 1 in a combustion chamber like this but not diesel. If you were to preheat the fuel and combustion air, fuel atomization is absolutely perfect, combustion chamber temps are high enough, turbulence is aggressive and dwell time in the chamber is long enough, you can get close to stoich but that is not the case with one of these diesel heaters. Common rail diesel is injected at somewhere around 30000 psi and even the old diesels see several thousand psi at the injectors. That little pump isnt going to generate anywhere near enough pressure to actually atomize diesel enough to run near stoich. Your test is pretty much all that can be expected. Cool test though, Nice work! If your aim is to burn all the diesel with a minimum of excess air you will need a smoke opacity meter. It looks at the exhaust as it is traveling past the meter and measures how "cloudy" it is. You can then reduce excess air until the meter starts seeing particles in the exhaust and you add a little more air and call it good. Thanks for the videos!

@DavidMcLuckie 3 года назад

Oooh a smoke opacity meter. Like they use for MOTs? Interesting.

@timk404 3 года назад

@@DavidMcLuckie I had to google MOT ( Im in Canada) but yes, it looks like that would be the same type of test. I forgot to ask if you had re-calibrated the wide band for the correct AF ratio. Most meters come calibrated with Lambda 1 being equal to 14.7:1 for gasoline. If you didnt reprogram for lambda 1 to read as 14.5:1 then aiming for 14.5:1 is already rich and would be at least part of the reason you were seeing smoke. You dont have to recalibrate, you just have to aim for 14.7:1 as lambda 1 regardless of fuel type. Again, I love the test!

@DavidMcLuckie 3 года назад

I was just aiming for 14.5 in my head. But yeah, the hot surface atomisation isn't really getting it fully atomised. As you say, it was interesting if nothing else. I've looked for an opacity meter but they are way too expensive for me just to tune diesel heaters with. :)

@RGD-Audio-Repairs 11 месяцев назад

So higher numbers on AFR gauge.. means Leaner?!?! Lower numbers means Richer?!?!

@oojimmyflip Год назад

our 5kw in a case arrived with Low 1.2 Hz fan speed 1680 and High 5.5 Hz fan speed 4500. it seems to run ok like this without any strange exhaust noises, however our 2kw makes that noise when you drop the low setting to 0.9 Hz from the standard 1.2 Hz with the fan speed at 1400 the lowest it will go. at this setting it blows dense black smoke.

@YankeeCherokee 4 года назад

All for the ratio for the smaller one! It's the more popular and would be curious to see if it behaves like the bigger one.

@andrewbartleman9169 4 года назад

The 2kw(d2) does not behave like the bigger (d4) its tuning is not as forgiving. It's a fine line and they like to soot up. They give us the most issues over on the forums.

@craftbrewer5401 4 года назад

I have the 22 ml pump. Fan rpm 1600 - 5000. Pump 1.6 -8.0. I am at 16 m above sea level. No black smoke.

@sebxj25vm 3 года назад

There do seem to be differences in build quality of these heaters. I have a 5KW heater I bought circa September 2020, and the fan runs really smooth at 1500 RPM. Also, another way to achieve an approximate good fuel mix seems to be to set your fan speed to the target you want (in my case 1500, for less noise) - and then, after the heater warms up, to adjust the pulse rate until you achieve one single red bar - which in my case is somewhere at 1.7 - 1.8Hz for 1500 RPM. That seems to be a nice even point - hot enough to burn diesel properly, but not too rich. Then again, this setting might need adjusting again as the outside temperature changes. This might not be as precise as measuring the exhaust gasses though. Also, I wonder if there are several different firmware versions in the controllers for these heaters. I have an identical looking controller as the one in this video, but I can adjust the target pulse rate on the fly while it is burning, without going into the advanced settings menu. I do have to go in the advanced settings to adjust minimum and maximum pulse rate though.

@oojimmyflip Год назад

same here for my 2kw heater heating my living room and mounted on the outside wall in a box, only I am heating internal air. the code for the extra functions on my 2 blue controllers is also 9009 Not 1688. the heater ecu's are the old type blue boards with the silver strip running across the board and a coil of copper wire in the top right hand corner with a carbon rod in the centre of the coil one of which I bought from flea-bay with a blue lcd screen and lcd remote and replaced the limited function black controller and ecu I got with the 5kw heater, these older boardss are apparently compatable with all Lcd screens that have the triangle shaped wiring connectors and the Austrailian made advanced controller.

@martprice7726 3 года назад

Yes please do more we love experiments👏👍😷

@stevehlife4933 4 года назад

1.0hz 4.0hz 1570rpm 4500rpm on my same looking 8kw heater that everyone tells me is a 5kw although the case says 8kw I also have a theory that the 8kw heaters are probably actually a 5kw set to run rich for the extra 3kw which is why most 8kw's run like shit out of the box and most genuine 5kw heaters run fine out of the bow and the large 2kws are a 5 with a smaller pump so only really the small 2kw's and the larger 5kw's work right out of the box just my theory based on little actual fact but a little experience and a lot of observation :)

@DavidMcLuckie 4 года назад

I think that's probably pretty close to the truth. Much like todays car manufacturers sell many specs of the same car and the only thing that changes is the engine map.

@kellygb9278 Год назад

I am one of the few who learned these facts, After, I bought a 8K. I have been fighting a E-06 error for about a month now. The unit will run for 20 minutes or so, from a cold power off state only, no warm restarts. Therefore, I know the Holtz sensor is working & since I have replaced -3- doser pumps, (all are 22mL) I know the pumps works. The controller, I'm not so sure about. I can't seem to get to the password protected area, so changing the fuel & RPM settings are out of my reach. I do have the pump on -10-, it won't run on -06- or lower Today, I started the unit up, using the temp screen versus the clock screen & it ran for 32 minutes with a output temp of 178, flashed 'off', slowed down, then started back up & ran again for 22 minutes, Flashed the 'E-06 error code', slowed down, removed the error code, flashed 'off' then cooled down & turned off I have ordered a new ECU & Controller because I am sure this one is setup for the 8K & is locked

@Bennytet Год назад

Thank you for posting. On my 5kw heater the high setting is at 5000rpm and 7Hz The low setting is 1500rpm and 1.0Hz. I would love to know how efficiently the low setting is because this is where the heater mostly runs. Thank you

@DavidMcLuckie Год назад

That's when you need to CO meter to see how well your heater setup is working.

@TOMAS-lh4er 4 года назад

YOU ALLWAYS crack me up !! thanks !!

@philliplopez8745 8 месяцев назад

A lean mixture burns at a higher temperature . I run my heater at 1.5 Hz and 2550 rpm at idle and 3.5 Hz and 5000 rpm at heating for best economy at 5500 ft altitude . No soot build up experienced.

@johncampbell4498 4 года назад

with diesel combustion you are better always to have a comfortably lean mixture meaning Lambda>1.5, that is +50% compared with the ideal, in terms of AFR that would be 14.7 x 1.5= 22:1. That is actually the smoke limit(most rich setting) of the majority of diesel engines, which are Always operating with excess air, it is the fact that a diesel engine runs without an air throttle. If you calibrate your AFRs lower than 22 i think despite the appearance of smoke free, you will be running the combustor at a too rich condition which will create excessive soot inside over the course of time, you will not notice this unless you perform a long endurance test. What would be useful is if you repeat your AFR measurements on an out of the box high cost Webasto or Eberspaecher diesel heater to see how is their factory setting AFR on peak heating, and you should also benefit by logging the gas temperature by adding a gas thermocouple in your exhaust path near to that Lambda(AFR) sensor. Q. Can you get a 0-5v signal from that AEM? this you could send to an Arduino and log that value against time, which will become more meaningful if you also logged the gas temperature at same time.

@randydicotti3975 3 года назад

For those of you tuning 2kw heaters, there are a number of pumps (volume wise) used on them. I've seen anywhere from 16mL to 18.5mL and even 22mL Oddly, the 18.5mL pump seems to be the perfect compromise, yet is nearly impossible to find.

@dansmith6990 3 года назад

what makes the 18.5 better than the 16 or 22?

@tonystacey3347 2 года назад

Do the controllers like the one in the vid come with same settings on the 2kw. I knacked one on my van and swapped it out with one from a redundant 5kw all in one and it’s smoked/clogged up fairly quickly . Any ideas anyone?

@HostileHST 2 года назад

Yesterday, 10-14-2021, was my first time to have an overheating issue, sooooooo, found some info, and simply increased the lower limit of the fan speed to max and has "seemed" to cure the issue as well as it now is starting up on first try, BUT, MAJOR DISCLAIMER, I've only had one day to know the full outcome.....crossing fingers....oh crap, also change the sn-1 to sn-2 which has solved some issues with people having start up problems including flame out. Will do my best to come back with any new info/changes as I continue to use the heater....sn-1 and sn-2 means one or two magnets, but where those magnets are, have not figured it out, but supposedly will affect fan speed which also affects how much are the intake, "air ratio" works. Sorry to make you have to read all of this, but...the overheating was on Pulse, aka, Hz of 3.0hz, not when higher. Also note, more vent tubing ultimately can affect what fan settins you can use to prevent overheating, more vent length, higher fan speed to keep it from overheating....EDITED, just seen the pinned post, ALL true, my elivation is 430 feet for what it's worth.

@HostileHST 2 года назад

Very next day after my post, heater refused to fire up. After a major cleaning of the main burner, it's running again! Thank you David for all the great video's, it made the tear down and reassembly quiet easy!

@peterlambert9123 7 месяцев назад

Not sure if it's been said Air fuel ratio for Diesel is in the range 18:1 to 22:1 that.s why the Hz to fan speed was so far off and it black smoked. Obviously on a Diesel engine you don't restrict the air so there is no fuel ratio to speak of. the ratio above is the minim air for complete combustion, you can't have a weak mix, although in a boiler you can have too much air it takes the heat away but then that's a draft ish...

@wilvandendoel6782 Год назад

Hi David, nice video, but tuning it to 14,5 is giving you max power, not max efficiency in my opinion. Diesel engines are tuned between 18 and 24. Wouldn,t that be the correct setting for the heater to?

@DavidMcLuckie Год назад

If it was an engine yes. But we want true stochiometric ratio so all the fuel burns in all the air giving maximum heat output. Running leaner would simply be less heat, great for an engine, not so great in a heater. :)

@wilvandendoel6782 Год назад

Thanks for your answer, I am using a dieselburner for 20 years now on my barge, When I put in a new nozzle I always richen it up untill I see smoke, then lean it up a bit, put a sheet of toiletpaper in front of the exhaust, and if I see some black deposit, lean it up a bit more. Always been perfect this way, never used a lambda. Would be interresting to see what the lambda value of my setting is. This method is not possible with this chinese burners because you have to shut down before adjusting, have one in my van now. So your video on using the lambda is a good tip. I will trie it some day.

@lucacavallini561 Год назад

Hi, i cant enter in set up mode with new Blue display?

@martinpanks992 Год назад

My Vevor 8kw (probably 5kw) heater responds to changes without having to shut the machine down, I'm sure yours will do the same as they are pretty much all from the same place.

@philwalton1009 2 года назад

Had to strip my new 5kw just after 5 days as it was absolutely caked up inside. Just on factory settings. If its sooting up that quick what recommendations does anyone have for me to reduce this in the advanced settings, is it sooting up quick because its overfueling.

@englishrupe01 Год назад

The reason that it's not easy to calculate those Hz numbers from 1 or 2 readings is, i think, that it is on a logarithmic scale and NOT a linear scale.....so very difficult to calculate/extrapolate. Excellent video, though, thanks.....very funny whilst being extremely informative.

@davidj9729 Год назад

(i do this for a living) o2 at 7.2 is a little high you should shoot for 6.5 as it produces fewer harmful emissions and tends to lend itself better to stability on most burners. some burners like weishaupt or riello can run as low as 3% without making bad gasses

@AlinCarpOnTargeT 2 года назад

Hi what are the consumption differences between 5kv and 8kv (diesel fuel and electricity) thnx

@SpoonerTuner Год назад

"5Kv" = 5000 Volts. And 5Kw = 5000 Watts. The heaters are rated in watts which is a measurement of energy (in this case heat) being produced at any given moment in time. Heat energy and electrical energy can both be measured in watts.

@MittyNuke1 2 года назад

I wonder if the afterburner controller could use the AFR gauge as an analog input to automatically adjust the hz once the heater is up to temp 🤔

@viscous3936 9 месяцев назад

Can you please explain the PF (pump frequency) setting along with the magnet 51 or 52 settings? Im very confused on how this part works and my heater wont run high rpm.

@dietmarw 4 года назад

I'd be very interested in a similar test for the 2kW air heater for obvious reasons. Would be happy to help with the purchase of the new controller ;-)

@timdeans6403 3 года назад

agree

@terryboomershine6812 3 года назад

I want to see a heater set up with peltier boards hooked in so it is charging your battery while it's running..😆

@DavidMcLuckie 3 года назад

In theory it works. It's just a bit more complicated in practise, but it is something I'd like to try.

@Nerd3927 Год назад

My biggest concern is soot at low settings. I just disassembled my clogged up heater. I will try a higher minimum rpm next time.

@harryharry8384 4 года назад

love the video, you re a tryer lol. or you could use a meat thermometer measuring heat output starting by setting low on 0.9 and fan at original 1450. take the temperature and adjust only the fan up in increments of 100 checking the temp until you find the point it drops then go back 50 or 100 and that's it for low setting and then you can find you re own way on high setting. By the way I set my heater while its running so I assume you can and it s that clever it speeds up the fan while you set the fuel then settles back down etc... suggest you treat yourself to building a lithium battery and demonstrate how they can supply an indicated 12.8v constant voltage for one of the heaters and you open up a whole new avenue of youtube videos for you to advocate them for motorhomes and boats !

@ContentCentral1 2 года назад

Any chance of you testing a little forced induction with a small 12v fan and that bigger 65ml pump?

@phuquetwo 2 года назад

So I just got my 8kw version with the blue lcd and red remote. It goes factory from 1.4 to 5.4 hertz. I've noticed a couple of wierd things though that I haven't seen mentioned in any of these videos. Maybe it's a new function? Anyways my heater will start out on high no matter what I do. Set to 1.4 when I turn on, but takes 5 min and runs on hi as it goes until all bars are reached and then it will slowly go down to where you set it. Another weird thing is I can smell the diesel coming out of the main blower while it's just starting to warm up. I thought these were totally separate chambers? It goes away after it warms up or at least I can't smell it anymore. The last thing is I notice when it's on the highest setting, the pump is usually fast. But then it will instantly "no slow down" jump to half speed pumping with the fan going the same speed.? After a min or so it will instantly go back to fast pump. It will continue this cycle every min or so. Is this normal? Like it thinks it's getting too hot and lowers the fuel amount without adjusting the fan speed.

@DavidMcLuckie 2 года назад

Other than the smell of diesel that's all normal. They start high to get the burn chamber up to temperature. At full power the unit throttles the pump to control temperature, if it can't throttle back enough it decides it's overheating and shuts down. I'd take the lid off your heater and make sure the rubber cover on top of the glow plug is fully in, that might be the source of the smell on startup.

@mouses911 2 года назад

What size is your pump? I have a 5kw version and was curious.

@randydicotti3975 3 года назад

Your results make me wonder if a slightly higher pump volume might help with your particular heater? 28mL ??

@martinpanks992 11 месяцев назад

The thing is the heater will reach maximum temperature (my heater is 250°c) with the pump set at 5hz and the fan set at 5000 rpm, it will reach that temprature faster with the pump at 7-8hz but your just wasting fuel that way..

@TheOriginalAndysGarage 4 года назад

After seeing this I'm not messing with my pump, LOL I don't want to end up with a farting heater

@DavidMcLuckie 4 года назад

As long as you take note of the settings before you start messing around you'd be fine.

@VANFLIPPINGTASTIC 3 года назад

my controler starts with the message p12v and i cant get rid .. any ideas. and when i turn up or down the temp it come up with h-1 to h-6.. h-6 been the hotest and fastest

@dougferguson5581 2 года назад

Hi is it best to start my Planar 8DM on high. For a few minutes then turn it down to burn off the build up inside ? And how do I check the hertz from my pump? It burps and facts a bit some nights. Wondering if that's the diesel air ratio .

@xxbambamxx7261 3 года назад

I have 1.7hrz 1450rpm on the low, 6.5hrz and 4500rpm on the high side.. There are no soot and no smoke coming out of the heater.. But this makes the heater hit the max the temp protect before it turns itself down for a few seconds to reach 245°C and stabilize again, so maybe I need to adjust the high fan speed a little more..

@garethwilson3138 Год назад

I have the 3 button controller and I can't get into my settings and it's not running right

@lordandprotector 4 года назад

The gauge does not know that you are running diesel. So, it will show 14.7 ( as it defaults to gasoline ) when you are at Lambda 1.00. Which is what you are after,. 16:1 is probably safer. Even when the ratios are perfect, the is some unburned fuel AND oxygen in the exhaust, due to imperfect combustion. That is when you start to get carbon monoxide production. Ideally, for diesel, you should tune with the Lambda display. Which is 1.00 for all fuel types. Or, even better, use O2% in 4-digit mode.

@lordandprotector 4 года назад

@@DavidMcLuckie Sorry. You kinda have it backwards. AFR is a mass-to-mass ratio. i.e. 14.5lbs of air ( N2/O2 ) perfectly burns 1lb of diesel fuel. It takes 14.7lbs of air to fully burn 1lb of gasoline. Lambda is a molecular ratio. at lambda= 1.0, every hydrogen and carbon atom in the fuel is exactly matched by the requisite number of oxygen atoms in the air, independent of molecular weight.. When there is exactly zero free oxygen in the exhaust, lambda 1.0 is assumed. The gauge really only knows how to measure lambda. It has an internal multiplier constant ( 14.7 ) that it uses to display AFR. It is possible, with special AEM software, to change the multiplier for diesel, E85, etc. But, it's just a number that the gauge multiplies the lambda number by to get an AFR display number. So, for gasoline, lambda 1.0 x 14.7 = 14.7AFR lambda 0.8 x 14.7=11.76AFR, etc. But, only for gasoline. To properly display AFR values for diesel, you either need to change the multiplier to 14.5 or, adjust the displayed AFR values by a factor of 0.986 ( 14.5/14.7 ). Or, just use lambda. Which is fuel-mass independent.

@DavidMcLuckie 4 года назад

Ah, that's a much better explanation. Thank you. Shame you can't alter it on the gauge. As this isn't an engine wouldn't we want a perfect lambda for burning fuel as we want it all to turn into heat?

@lordandprotector 4 года назад

@@DavidMcLuckie Yes. That is important. The mixing of the air/fuel is not nearly as good in a heater as in an internal combustion engine. So, you will still get rich pockets, which will produce monoxide and soot, even at some lean mixtures.

@SpoonerTuner Год назад

@@lordandprotector so what number would his AEM AFR gauge need to display without changing it to get an actual 14.5 Air/Fuel Ratio?

@1981dasimpson 4 года назад

sounds like a pulse jet engine

@mannyfragoza9652 2 года назад

my heater makes that rumbling noise on start up.Its coming from the Air intake filter only lasts a few seconds

@dantronics1682 2 года назад

Does stoich figures works for non compression burning? the co2/co meter sounds a better idea. I thought you would want a fair amount of oxygen left over after a burn since this is how the rocket stove achieves its high heat output

@DavidMcLuckie 2 года назад

Yes for the stoichiometric part. In a perfect burn all the fuel would use all the oxygen regardless of compression burn or open flame. But due to the rather poor mixing of the air and fuel in the heater if you run it lean you get a lot less heat. CO is the easiest tune for these heaters. You could probably build and exhaust setup that keeps the gas in long enough for the AFR to read properly but that would then only apply to that very specific setup. Having a heater with a small CO reading means you've got enough fuel coming in to produce good heat, but not so much you'll soot it up quickly. :)

@garyclough7115 2 года назад

Hi David. Could you advise what the best settings are for a 5kw. ie min and max hz for fuel and min and max for rpm. Thanks

@Gumis2323 2 года назад

Witam. Bardzo proszę o pomoc. Mam piec 8kW. Mój syn w ustawieniach serwisowych poprzestawiał, częstotliwość i obroty wentylatora. Ja starałem się poustawiać coś ale szczerze mówiąc nie mam pojęcia co i jak ma być. Usterka polega na tym że: piec zdemontuję wyczyszczę komorę spalania, uruchomię. Po max 2h piec się wyłączy i nie da się już uruchomić. Po kolejnych próbach wywala mi błędy E08,E10 i straszny biały dym z rury wydechowej. Komora spalania jest całkowicie zapchana sadzą. Dlatego podejrzewam że jest rozregulowany tzn. źle ustawiona częstotliwość dawkowania pompki i obroty wentylatora. Po czyszczeniu ustawiałem większą częstotliwość i mniejszą a efekt ten sam zapchana sadzą komora spalania. Bardzo proszę o pomoc. Dziękuję i pozdrawiam Wojtek

@KiwiFruit65 Год назад

How do you get into admin settings? My display looks the same but doesn't appear to offer control of these parameters.

@DavidMcLuckie Год назад

Ahh. Not all controllers are capable. Even the ones that look the same, but then turn out not to be.

@stephnog Год назад

Hi David i follow your videos to a tee mate & keep up the good work buddy, extremely easy & informative the way you explain stuff.. I've got a wee mission for you shud you choose to accept it......😂😂.. i have one of the new Maxpeedingrods all in one heaters but thinking it's running a bitty rich as its using quite a bit of diesel...Ate they tunable.. & could you could do a video on tuning the buggers.... thanks in advance pal... Stevie fae Ayrshire

@Guns_N_Gears 4 года назад

After seeing the values listed on the pumps, I wonder if the inputs and outputs could be paralleled to double the output, or customize flow more than just controller? Example, 22ml x 2 ÷ 44ml

@DavidMcLuckie 4 года назад

You could also swap to a larger pump.

@Guns_N_Gears 4 года назад

@@DavidMcLuckie interesting!! Thanks for the reply 👍, and the awesome 👌 videos!!

@zygielful 3 года назад

Hi David, would 6.8ml flow rate super silent Autoterm Planar pump work with 5kw chinese heater? I have just ordered one and I hope I would find the way to adjust the settings accordingly. Any advice please? Great channel 👏👍👌

@DavidMcLuckie 3 года назад

It will work in the sense that it will connect and pump fuel. But you will need to adjust the fuel settings to match the pump. I'm not sure what their 'flow rate' is measured as.

@royboy002 3 года назад

Can these heaters be installed in a vertical position? I have never seen any videos with it fitted vertically?? Thanks for some good demo's.

@thefeet 3 года назад

From what I've seen they should only ever be installed in the horizontal position with the intake/exhaust coming out of the bottom. (something to do with the fuel delivery-system to the burn chamber (possible leakage?) ...if i recall correctly) Hope that helps.

@mcjjordan Год назад

Most vans have the exhaust coming out sideways for ground clearance

@plasmar1 2 года назад

do you have any experience with the newer controller/board that does not have the hidden menu; john and mandy have videos about it.... ordered another controller in hopes it's the older version

@plasmar1 2 года назад

the newer variant looks similar but works diff.... pump priming for instance you hit up and down keys together/etc.... curious as to if there's any hidden menus/etc; the easy way to tell it's the newer version is when it's off there's a red circle with a line through it

@DavidMcLuckie 2 года назад

I had one. But the ECU in the heater it was attached to died. So I never actually got to play with it.

@plasmar1 2 года назад

@@DavidMcLuckie thanks for the reply.... trying to run it with used oil and the thing keeps either going to much air or to much oil..... it's auto regulation is garbage; possibly alright for kerosene or diesel

@GlobalMongrel 4 года назад

Need to ask if you've ever come across a fault of the LCD control unit not powering up. Tips/tricks things to look for.

@andrewbartleman9169 4 года назад

Did you change the controller? Some motherboards dont run some controllers. I try to buy them as a pair since there is so many manufacturers selling different controllers with the same case.

@GlobalMongrel 4 года назад

@@andrewbartleman9169 controller came with the kit. All in one package

@put301 4 года назад

Glad you made this video looking forward for the one on low settings would these settings work with kerosene sorry to be a pain

@DavidMcLuckie 4 года назад

Yes. Kerosene, Diesel, Petrol all have roughly the same AFR.

@andrewbartleman9169 4 года назад

But not all heaters will use these settings. Each heater is different, installs are different with more exhaust restrictions etc.. even elevation has a major effect on tuning. A good easy way to tune is by measuring the carbon monoxide. You want to set you low pump setting and high speed settings with low carbon emissions as your target. Around 20ppm seems to be a very clean burn for these..

@andrewbartleman9169 4 года назад

And his 7hz pump speed with the 22 pump is unheard of in the forums. I'm interested to see what his co emissions are.

@ronaldren5581 2 года назад

I have a cheap 5 kw heater and I’m not able to get parts from th place I bought it. Are the parts all interchangeable? Could I upgrade the parts? A pump and the electronics are over half the price of a new heater.

@DavidMcLuckie 2 года назад

Yes. The blower motors, ecu, fuel pumps are the same on 5KW and 2KW heaters. Only the body and burn chamber change size.

@PhuketSyndicate Год назад

Will it remember the high low settings after power cut off?

@DavidMcLuckie Год назад

Yes.

@brookster16v Год назад

Running mine at 18.5: 1 afr for best running 👍

@Diesel8290 2 года назад

Anyone know how to put old style panel in new style heater, so I can change air fuel ratios

@Kval47 4 года назад

Hey David my controller is a black one like what you use although I've got a shiney red one I've not tried. The black one fitted all fires up ok but the inside temp might say 22° & I'll hit the bottom left button again it still gives heat with the setting at 12°, what's going on? Second question, how do i spiral 4mm/5mm copper around the exhaust so i can use the heat for my water to be hot on the boat? I've tried sand n salt n nothing but i can't seem ri get it coiled around without flattening. Want the job? Anyone? I'm in Ayr can travel. Glasgow man.

@DavidMcLuckie 4 года назад

Ah, do you mean it doesn't turn off? Or that it actually turns on even when the temp is set lower than the room? As they don't actually turn off, only down to low power. I've had as much luck as you with bending copper pipe. I think I'm bending to small a radius onto to large a pipe.

@s2oooo 4 года назад

Get two vents that open close one going outside to regulate temp 👌

@donboucher2440 3 года назад

Wanna bend pipe? Sodder end shut, fill with water, sodder opposite end, fold over copper ends a couple times to have pressure build up. Spin spin away, no kinks👍👍

@Kval47 3 года назад

@@donboucher2440 Hi wouldn't that just split the pipe?

@braydenking89 4 года назад

In regards to the controller are you hooked into the diagnostic wire or just the clock/switching wire.

@DavidMcLuckie 4 года назад

I'm sorry I don't understand the question.

@braydenking89 4 года назад

@@DavidMcLuckie all good just wanting to know which wiring you are using to turn it on in the 6 pin plug.

@cliffordjava4658 4 года назад

Great vid. I have a question. How can I adjust the screen's brightness, if possible? Thx

@DavidMcLuckie 4 года назад

I'm not sure you can.

@CadburysMan1 3 года назад

You can do this by adding another led to the control panel and an inline resistor soldered on the positive side. theres a video on youtube dude

@16vastraturbo 4 года назад

Is it possible to use different 12v fuel pumps on these as the original is rather noisy? Tick tick tick tick......

@DavidMcLuckie 4 года назад

Yes. If you find a silent pump that matches the size you are using.

@davidk7544 3 года назад

David, Love your videos. Sort of funny abut these diesel heaters being called "Chinese" as most of the components of any brand are made in China anyway but hey...I'd love to hear more about air/fuel ratio. The number is derived from the free oxygen sensor alone yes? Please edumacate me.

@DavidMcLuckie 3 года назад

They are Chinese in the sense that they are a domestic product of China, as opposed to the Webasto etc which are German design even if they are made in Chinese factories. And I mean it in no way as a slur or derogatory term, they just literally are the Chinese version of a German heater. :)

@coreybabcock2023 Год назад

Need the sea level to 1,000 ft settings for my 5kw model with 22ml pump what's the pump Hz and fan speed for low and high ?

@DavidMcLuckie Год назад

1.6hz - 1680rpm 5hz - 4500rpm These are absolute ball park figures and I always recommend tuning every heater installation when possible.

@khrisa1945 4 года назад

Hi love the vids, quick question I run my heater from a power pack supplied by the mains electric but here in not so sunny France we get a few power cuts and was wondering that during running it and getting a cut will this kill the heater if so what can be done to prevent this,, cheers bud

@DavidMcLuckie 4 года назад

I assume you mean you're taking the 220v from the mains and run a 12V power supply from that to run the heater? A sudden loss of power to the heater means it can't run the fans and there is a risk of overheating the circuit board inside the heater. You could use a UPS (uninterruptible power supply) between the mains and your 12V power supply. Or put a 12V battery on the output of the 12V power supply. That way when the mains is on the battery is just floating at 12V and the heater is drawing power from the supply, but if the mains fails the heater will continue to run off the battery. You'll just need to make sure you turn the heater off before the battery drains.

@bolithoh6873 3 года назад

@@DavidMcLuckie thanks for this information David I run mine on a similar set up here in uk and got caught out with a power cut it killed the glow plug so an easy fix i'll be looking for a UPS now thanks to you and our French buddy to stop it happening again. Cheers

@cossiedriverrs 2 года назад

@@DavidMcLuckie "You could use a UPS (uninterruptible power supply) between the mains and your 12V power supply." Great idea. "Or put a 12V battery on the output of the 12V power supply." You NEVER want to do this unless it is a battery charger. If you put a battery on the output of the power supply, and the mains fails, the battery backfeeds the power supply, and damages it. Been there, done that :-( You could do this, IF you fed the output from the supply via a suitable diode, and raised the 12V to at least 12.7V . REALLY great info, many thanks. I am going to start playing with my unit,... Supposedly a 5kw unit, it could do with being just a little warmer...

@ianhoward744 2 года назад

hi good videos as always have you any idea why i can smell exhaust fumes coming out of the air outlet have replaced all the gaskets but still smells

@mark6205 Год назад

Possible problem: bad casting - porosity in the casting....should not use if defective.

@johncampbell4498 4 года назад

Can you share the model number of that AEM AFR sensor and controller(i guess the controller is integrated with the gauge).?

@DavidMcLuckie 4 года назад

It's the AEM X-Series gauge which uses a Bosch 4.9LSU sensor. Yes, the controller is inside the gauge.

@asdasd-jl3ls Год назад

How much rpm or hz chanse affect on afr?

@Self.reliant 2 года назад

One thing to note is a lean mixture is hotter. That's why it melts pistons when you go too lean. I don't think you want a perfect mixture in this situation

@DavidMcLuckie 2 года назад

That's only applicable to petrol (gasoline) burning piston engines.

@Self.reliant 2 года назад

@@DavidMcLuckie ok didn't know diesel was different when it comes to fuel mixture.

@DavidMcLuckie 2 года назад

Neither did I until recently. Having only tuned petrol engines I knew we used excess fuel to cool things down. In diesel more fuel is more heat.

@Self.reliant 2 года назад

@@DavidMcLuckie ok thanks for the clarification

@garybrown8593 3 года назад

Can you adjust more fan speed for starting as mine starts fine then it won’t fire the next day leave it for a week then it starts again if add a air line and blow up the air intake it fires up ?

@DavidMcLuckie 3 года назад

If you tweak the settings for the low heat settings that's what it uses for the startup as well.

@dudeleboski2692 3 года назад

David, can this air fuel mixture be done on a Webasto?

@DavidMcLuckie 3 года назад

I've only used the water heaters but Webasto have their own tuning method in the Webasto diagnostic software.

@dakotak8437 4 года назад

Have you seen or tried the new oil burner system waste oil burner electric one.thats on aliexpress

@4kays160 4 года назад

I'd like to know how large a battery bank you would need to run this system for say 12hrs per day? Im off-grid and use a 12v solar system to power my essentials, I'm considering buying one of these as I can't have a fire place? Anyone have any idea how many amp hrs this thing uses in around 12hrs?

@FirstSuiGeneris 4 года назад

_Start up is 8 amps to 10 amps for a few minutes, then drops to 1/2 to 1 amp during the run time. When you turn off it will bump back to 8 to 10 amps for the glow plug to help with excess fuel, again only a few minutes._

@andrewbartleman9169 4 года назад

They actually use very little power once started . A 3a smart charger will keep a battery charged. As the other reply gives you the specs. It's only drawing high current at start and shutdown . Tick over uses very little. So solar panels and 100 ah battery would do fine. For what you need

@freemanscott78 4 года назад

260watts

@johnreed1580 4 года назад

Not 260 watts. At 12v that would be 25amps!

@oojimmyflip Год назад

I bought a £48 75 amp car battery from ebay and it runs my 2kw heater for 16 hours every day without a glitch, with enough reserve to run the heater for at least 2 days.

@my_carp_life3424 Год назад

What does the sn-1 mean on the settings?

@DavidMcLuckie Год назад

It's to do with the number of magnets on the fan and/or their polarity. If you choose the wrong one the fan speed will be wrong.

@kierandanks8835 4 года назад

Hi mate saw your videos about the pressure washer repair, could do with a bit of help if possible, please drop me a reply

@joe2001mini 2 года назад

What will happen to the diesel heater if it's run lean???

@DavidMcLuckie 2 года назад

Less heat, less soot.

@joe2001mini 2 года назад

@@DavidMcLuckie thank you for your reply. So If I run my heater in alpine mode to reduce temp output, it will not cause it to soot up or any damage? It doesn't flame out but drops the temp to around 115°

@Max_Marz 3 года назад

Turn your fan speed down instead of the fuel speed up?!?

@DavidMcLuckie 3 года назад

Yes and no. You need enough fuel and air to keep the burn chamber hot enough to vapourise the diesel to burn properly and lower the CO.

@AllAroundBang 2 года назад

What's the administrative password to get into the menus to change these settings?

@DavidMcLuckie 2 года назад

1688

@oojimmyflip Год назад

@@DavidMcLuckie some blue screens require 9009 to get into the settings menu. both my 2kw and 5kw blue screens are 9009.

@martinpanks992 Год назад

You can adjust mine while it is running

@florianmeier6736 4 года назад

Hey David, thanks for your videos you made. I see you tune your AFR just with the pump frequence and the rpm of the fan. Why dont you restrict or improve the airflow from the airfilter? I dont have a afr measuring device for now but I wanna see the afr 15 at a pump frequence at 0,8 to1.2 at a very low fan rpm. I dont need more power because the heater is installed at a normal car. What do you think about me idea to improve or restrict the flow of the airfilter? Thanks for your help. Greets from Germany.

@richardfearn2723 4 года назад

Nice info

@davidbivens2246 Год назад

I’m a little confused here.. wouldn’t you be wasting fuel by increasing the hz? Yeah, it may be running a little lean at 18. But who cares, you are only dumping extra air through the exhaust. Which should be no big deal. By increasing the hz you are adding more fuel to reach a stoichiometric amount of fuel to air ratio. Which in turn wastes more fuel

@DavidMcLuckie Год назад

This setup is not ideal. Later we go for tuning from the CO output of the exhaust. Due to their inefficiencies I don't think these heaters would ever run at stoichiometric. They don't mix the air and fuel well enough.