I'm really enjoying this series of videos, Gray. I just started a job (volunteer) running a community hall with two oil furnaces and there's a lot to learn. I've serviced gas and electric furnaces and boilers for years but oil is new to me. Please tell us more about your recommendations re analyzers, like the one shown here.
Most newer units are made to run 140 or 150 PSI . On older stuff I will often drop the nozzle a cpl sizes and up the pressure. One mistake I see a lot of people make is they will raise the pressure but forget to make adjustments to the nozzle assembly slide, such as a Carlin burner the higher the nozzle the more forward the assembly should be
Seems like .60 nozzle with pressure between 125psi and 140psi would get you to the .7 manufacturer recommended GPH per the beckett graph. Not sure why the pressure was so high in the previous videos. Love the videos!
no need to run over 140 psi on pump pressure on a pump ,,,if it was a riello yes 175 on some but a carlin or beckett why ?? thats why your temp is so high
Some commercial burners run 300#. The fact is, the higher the pressure, the finer the droplets. I'm not a designer and don't have all the answers here, but this is a simple way to increase efficiency on older units. You are right, the actual gallonage is too high for this furnace with the higher pressure. The following videos go into much smaller nozzles and give the results. It gets kind of interesting as it progresses. Thanks for the thoughts. GFM
@@7688redsox the higher the pressure the finer the oil spray. Better burn. You just have to fine the right GPH nozzle. 100psi is old news 130-175psi is normal now. but you need a new pump thats made for the increase
Could you please explain about how you know what angle to use when choosing a nozzle? I understand the gph, but how do you know if you need a 70 deg A, or 80 A, then there is 70 B nozzles. Hollow, solid, semi-hollow. How do you know which one to use? Thank you
Love your vids, very helpful! Curious though, why would you not touch the screen on the nozzle? I could see if you had really dirty hands so you wouldn't want to foul it, but if your hands were clean? I've also seen the screen was loose on brand new nozzles too so I had to snug it back down too. Thanks, Jim
grayfurnaceman Got it, thanks! I would think the toughest thing for an oil burner repairman is the smell of oil. I don't know how you guys deal with that? I work in the waste water industry and I still think oil is a worse smell😀
@@fishsquishguy1833 I always used blue disposable rubber gloves. I hated that stink on my hands. I never had a problem after touching the nozzles. I think that’s an old wives tail. Just my opinion.
Is your video showing me proper adjustments on Nozzels.. or am i going to do this and cause my customers unit to fail and cost me money to get it back online.. and possible loose my customer..
I don't understand pushing the pressure up so high. Every factory built unit has the correct pressure setting, nozzle, electrodes, air setting and etc...stick with factory guidelines and if it doesn't work then, something's worn out....fix it.
What is the gpm equivalaant for a siphon nozzle? My burner is 720kbtu uses a 4gph nozzle the biggest siphon nozzle i can find is a 1gph. Or metric 2.5mm. Any clue ?
Why can't you touch it? I touched it and nothing bad happened. Sintered metal filters, we use something just like that for silencers on pneumatic systems.
