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Diesel Hot Water and Air Heater: ESPAR HYDRONIC System Install in a Sprinter Van Conversion

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A diesel hot water and air heater is the perfect addition for our sprinter build out! We are installing an Espar hydronic heater. Hydronic heating systems are great for providing both hot air for heating the inside of the van and hot water for cooking and showers. in this video, we install all of the components of the system that are inside of the van, such as the heat exchanger, glycol tank, and heating blower unit. Hopefully, this is going to be the perfect solution for keeping warm in a camper van.
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DISCLAIMER: We are not professional van builders. We are sharing these videos so that you can see our progress and share our journey. If you are not experienced in the activities demonstrated in this video, please seek professional consultation before proceeding (we sure do whenever we are in question and need help).
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26 авг 2024

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@WanderfulRevolution 3 года назад

What are you using for heating and hot water in your van build? Have you installed a hydronic system? How do you like what you are using? Please tell us! We'd love to hear about it!

@rogerlittlejohn475 3 года назад

I am using similar materials as you are. Using only one heat exchanger with electronic valves for directional use. After coolant leaves heat exchanger it is t-d off to either hotwater for kitchen or shower or heating. I am placing a 3/4" brass electric solenoid valve each line . This will keep from heating the van when I need hot water and vice versa.

@thomasbarlow4223 2 года назад

I have a 2001 e450 powerstroke shuttle bus and I have a piece of 1-in stainless pipe that runs through my water tank and I use the engine coolant so I can have hot showers.

@carlbeaver7112 3 года назад

Nice job! One item I see though... whenever plumbing through a device that has a vertical flow you should consider that the flow should enter at the bottom and exit at the top. The reason is the device probably will never completely fill and efficiency will suffer as a result. Then there's also the possibility of gurgling, hearing water splashing, etc.

@WanderfulRevolution 3 года назад

Thanks for the tips and that totally makes sense! ! We had considered that but we were just running low on space which is why we connected them the way we did. Good news is that they still work great! Thanks for watching!

@tarntravia3705 2 года назад

Hi Carl Beaver, I'm setting up a similar hydronic system. With your comment, is it better to run the water from bottom to top or the glycol fluid? As my installation information only mentions that the two fluids should run in opposite directions.

@OmmerSyssel Год назад

@@tarntravia3705 heated fluid should enter the bottom of your construction.

@aernan 7 месяцев назад

For those doing hydronic pay close attention to the heat rating of the plumbing. Hydronic furnace makes 185F (85C) water and pex is rated to 180F so it will break down. There is Aluminized pex which is safe to 200F.

@j6sj7 3 года назад

Verrrry interesting. Looks almost ready to test. Anticipating the fire extinguisher scene in a coming video. -Burt in NJ

@WanderfulRevolution 3 года назад

No Burt! We don’t REALLY want to use the fire extinguisher!!! 😂

@thomasbarlow4223 2 года назад

My shuttle bus came with a rear heater for the passengers so I plumbed a heat exchanger into that coolant line so I can warm up my water tank for hot showers. Been working great for a year now.

@WanderfulRevolution 2 года назад

Nice! So great that the system was already there for you! We love the hydronic heat!

@DaeliaVanlife 3 месяца назад

Thats it cuz of you im going crazy diesel heater diesel water heater and stove😂

@lucasdegagne6341 3 месяца назад

you guys did great but you should really reverse the plumbing to enter the bottom and exit top of your heat exchanger so you don't have any air pockets trapped. Even if it's working now I would say it's almost essential for longevity and reliability you don't want an air lock or your pump trying to move air. That's how a radiator in a car works too in bottom out top

@CTStevens 3 года назад

You can bend and cut sheet metal to hold those heat exchangers.

@WanderfulRevolution 3 года назад

We attempted but failed miserably at it haha! We just don’t have the tools we need. Looked at having them made and they wanted $200 to make them!

@tipatses 3 года назад

Hey ! Nice video! I'm planning my next build and looking to buy an Hydronic system as well (maybe the Espar S3 D5E model) for hot water system and air heating (Kalori 5.5Kw). Winter can be freaking cold here back in Québec, Canada and I'm also looking for heating the floor with this hydronic system. (I had an Espar D4 airtronics 5K in my last van and it was enough to heat the air but the floor was always cold tho...). Heatso website looks like a real mess... I don't even imagine how it can be dealing with the customer services... I'm considering buying all the parts separetely and choose each part of the system... Got hard time finding videos on that topic, seems like it's a new way for heating vans.. Looking forward on your build! I've also watched Dares Drives and Freedom Strider videos, great informations indeed!

@WanderfulRevolution 3 года назад

Hey! Thank you for watching! Heatso has definitely been a “challenge” for us! We are really regretting buying from them at this point and we certainly can’t recommend them to anyone. We continue to have problem getting the heater running and getting in touch with Heatso seems impossible at this point. Not to mention it’s an expensive purchase to have this many issues. But anyway, I think I’m whining at this point! 😂 I think heating the floor is a fantastic idea! We would have done the same but this unit was an after though for us and we were well into the build before deciding to go with it! There another UK company called Mellor Online. Then appear to be a little better and of course there is Rixen Enterprises here in the US. Also we hear Espar of Michigan is helpful! Best of luck with you build and we are always happy to help if we can! Stay warm up there in Canada!!

@garbi8526 3 года назад

I'm in the same moment as you, idem with the heating floor! Avoiding heatso is a very good idea! I'm not sure if i have to go with the Espar D5E or the Webasto Thermo top Evo 5. I'm researching about the remote on/off of the heaters!

@swegmastur614 3 года назад

@@garbi8526 "Weekends We Roam" has a good video on heatso. He recommends buying from an actual espar dealer like esparparts.com

@fbr65 3 года назад

I just ordered the Espar hydronic system from heaters4you.com. It’s less than $1k but doesn’t include the blower.

@konorrockhill6191 3 года назад

How do you go about doing the floor? Did you end up doing this now at this point?

@troyherrera421 3 года назад

Considering a similar system so wondering how this is working for you? As a side note, to improve the heat transfer on the heat exchangers, your heat source should enter the lower ports and exit the higher ports.

@WanderfulRevolution 3 года назад

So far it’s working great! No complaints at all. The hot water is HOT!!!!! And the kalori blower for heat keeps the cabin plenty warm (we’ve only used it in temps as low as 25F though). We are definitely happy with it.

@carlbeaver7112 3 года назад

@@WanderfulRevolution What happens when the hot water flows into the top instead of the bottom is you'll almost always end up with air in the top of the exchanger. That means that exchanger (and possibly both) probably has little more water inside than it takes to cover the lower nipple. That creates a lack of efficiency and a potential source for gurgling noise. But, if you're happy... :-)

@fredv7487 3 года назад

Hope you plan on insulating your lines. In cold weather the heat loss would be great.

@tluva1020 2 месяца назад

Did you have to add an expansion tank for pressure overflow ??

@WanderfulRevolution 2 месяца назад

Our tank is vented and has an overflow… it came with the kit! Hope this helps!

@thecodingworkshop4346 2 года назад

What is the system like to use. Because in my head I am think this setup is like a tankless hot water system where its heating up the fresh water on-demand as it passes through the heat-exchanger. I am imaging this will use more of your fresh water before it gets warm enough to use. is that the case. I like your setup but I think I will opt to use a Calorifier tank with an heat exchanger and 500w coil for backup. But I'm thinking it might be better heating up a tank of water rather than an on-demand system where the water you have might off to last longer if you're boondocking. And that way with the tank I am effecting adding to my water capacity but an independent hot water. Which I'm sure your system provides as well. Great idea though which i will be pinching but lean towards calorifier tank rather than multiple heat exchangers.

@WanderfulRevolution 2 года назад

The first split second of water isn’t warm due to the residual that sits in the line past the exchanger, but after that it’s all hot water!!! We haven’t had any issues with running out of water so far, but sounds like your idea would save water! Update us on how it works! Thank you for watching!

@ourvanlives4736 8 месяцев назад

How hot does the hot water get? How many plates are your exchanger? I'm curious about what size of exchanger I want to buy for when I build my own system similar to yours.

@rogerlittlejohn475 3 года назад

I am mounting my heat exchanger to two verticle 1 inch 80/20 extrusion. I am mounting the 80/20 extrusion to my wall with screws then using metal strapping to attach the heat exchanger to the 80/20. This also gives air flow under the exchanger and keeps it off the wood wall.

@WanderfulRevolution 3 года назад

That’s a really great idea! Are you doing most of you build with 80/20 as well? Let us know how the exchanger mounting turns out!

@rogerlittlejohn475 3 года назад

@@WanderfulRevolution using the 80/20 for the garage area and bed support. Also used it to build a roof rack and frame for the solar panels. We are enjoying your instructive videos. Thanks.

@kamikazekunze 2 года назад

LOVE IT! We purchased a hydronic heater as well for our van. Was there a specific reason you didn’t plumb it into the vehicles cooling system? Thanks a bunch. Sub’d

@WanderfulRevolution 2 года назад

Yes! We wanted to keep the two systems separate in case of some kind of hard failure that would keep the van from moving… I haven’t heard of any issues but that was our thought process at the time of the build! Thank you for watching!!!!

@kamikazekunze 2 года назад

@@WanderfulRevolution ah, makes sense. Thanks so much!

@briandoss5321 2 года назад

Are the heat exchangers the only radiators for the entire van? If so, how are they working?

@WanderfulRevolution 2 года назад

our system is totally separate from the vans radiator. we have a small glycol tank and the 2 heat exchangers. One exchanger is for the shower and the other is for the sink. There is also an exhanger attached to the blower for our heater. So far they are all working great!

@gilliesandmark 3 года назад

Hay great system, do they come with 2 heat exchangers for the water or have you added a second one?

@WanderfulRevolution 3 года назад

The kit we bought came with one heat exchanger. It ended up being way to big for where we wanted to mount them, so we ended up buying those 2 on Amazon. Much better size for our application.

@leblancexplores 3 года назад

@@WanderfulRevolution I'm curious how the 30 plate HE is turning out, does your sink water get hot enough? I ask because some of these kits use a 10 plate and bypass mixer which would be nice for the size but might not get hot enough.

@cliffburton879 2 года назад

Hi, excellent video, what size heat exchangers have you used please?

@WanderfulRevolution 2 года назад

Heat Exchangers - amzn.to/39mP2jb The ones we bought had 30 plates, but it seems they don’t have that one available right now. You can probably go up or down without any issue. They have a 26 and a 40 plate version.

@cliffburton879 2 года назад

@@WanderfulRevolution thanks for the reply, very much appreciated indeed 👍🏼

@taniawildman5531 3 года назад

Hi, did you install 2 x 30 Plate Heat Exchangers? And is this too hot or just right. Why not just install a 50 Plate Heat Exchanger? Thanks :)

@WanderfulRevolution 3 года назад

Yes we installed 2 x 30 plate heat exchangers. The water can be very hot, but mixes well with cold water to an appropriate temperature. We have 2 exchangers because we have a recirculating shower, so that water has to be kept separate from drinking water. If you don’t have a recirculating shower, then a 1 x 50 plate exchanger would be fine. Although I think even the 1 x 30’plate exchanger would be more than appropriate

@taniawildman5531 2 года назад

@@WanderfulRevolution Thank-you :)

@rhysdylandesign7131 3 года назад

What type of header tank are you using? Looking for it on Amazon.

@WanderfulRevolution 3 года назад

The Hesse that we used came as part of our Espar kit from Heatso. I don’t have an Amazon link, but here’s a link so you can get an idea what you are looking for. www.heatso.com/5-liter-header-expansion-tank-for-webasto-and-espar/

@gdufour1 3 года назад

why not use a radiator hose on the glycol side Instead of orange pex?

@WanderfulRevolution 3 года назад

We did use a radiator hose for the portions under the van, but decided to use pex inside because we had a tight space to work with and for us the pex was just easier to work with to make the turns exactly where we wanted them.

@aprylehamilton4530 3 года назад

@@WanderfulRevolution help! We have the same system setup and we have low heat and water. We are wondering if we need to add glycol? Van is 3 years old. We also are getting a message on the easy start controller that says Add R. Watching all your videos hoping to learn about the system.

@radu98012 3 года назад

I purchased a kalori Silencio 2 from heatso. I try to figure out if I have to remove the rubber from the 2 pipes or not. Masybe you can clarifi this for me. Thanks

@WanderfulRevolution 3 года назад

We removed the rubber plugs from ours and attached our hose directly on the fittings. Thanks for watching!

@raducristodoru9050 3 года назад

@@WanderfulRevolution Thank you. Great video.

@skitravelerz5847 Год назад

I purchased the kalori compact evo1 heat matrix, it is loud 75e.g. on hi speed, I am wondering how it compares to the silencio 2 for noise level.

@konorrockhill6191 3 года назад

What's the diverted between the normal espar diesel heater?

@WanderfulRevolution 2 года назад

Espar claims that this heater is more dependable and good for higher altitudes. We have used it at over 10k feet and functions great! Thank you for watching!

@konorrockhill6191 2 года назад

@@WanderfulRevolution where would you recommend buying from? I hear some places are horrible

@konorrockhill6191 2 года назад

Do you know what you'd need to do floor heating as well with these? Is it the same as the regular disel heater by espar but adds on the hydronic? Curious if it puts out same amount of heat. Also curious how this system works out with a recycling shower? And it only really is hot while driving isn't it?

@WanderfulRevolution 2 года назад

The same setup would be fine for heating the floor as long as you don’t exceed the max circuit size. As for the heat dissipation I’m not sure… but our water is scalding hot if we want it to be… with the recirculating shower it has it’s own heat exchanger… it’s on whenever we turn it on… we didn’t tie into the vehicles coolants system… we just push a button and five minutes later all the hot water you want! Hope this helps!

@konorrockhill6191 2 года назад

@@WanderfulRevolution that's helpful thank you!! So did you have 2 different heat exchangers 1 for recycling shower to keep it in the same loop and another for the sink water?

@WanderfulRevolution 2 года назад

@@konorrockhill6191 correct! One heat exchanger for heat and sink and one for the shower

@konorrockhill6191 2 года назад

@@WanderfulRevolution ahh okay. Im getting the hang of it now. Just need to figure out the 2nd heat exchanger portion. On heatso. Their espar hydronic kit is 3k and another person said they got theirs for 2k so im not entirely sure all the components. do you have links to where you bought them? I've heard some places are terrible to buy from with customer service or what have you.

@konorrockhill6191 2 года назад

looking to buying this setup, do you recommend anywhere to get it?

@rogerlittlejohn475 3 года назад

Won’t your heat exchangers heat your walls?

@WanderfulRevolution 3 года назад

So far we haven’t had an issue. The walls warms a little, but not excessively so. Of course it’s something we are keeping an eye on at this point.

@rogerlittlejohn475 3 года назад

What is your source for your header tank?

@WanderfulRevolution 3 года назад

We are using a propylene glycol mixture in our header tank. The tank is dedicated to the heating system. We top off the tank as needed.

@rogerlittlejohn475 3 года назад

@@WanderfulRevolution where did you purchase the header tank. I am also installing the Eberspacher system in my van.

@WanderfulRevolution 3 года назад

It was a part of the kit we bought from Heatso.com and I believe you can purchase them separately there as well. I haven’t researched it much but an auto part store may have what you need as well