WOW! Man, you could go into business designing these systems. I think now is a bad time to tell you I plan on pumping water in and out of old milk cartons lol. Looks absolutely fantastic.
Hey, this is pretty much what I'm doing! I found your video when I searched for where (and how many) non return valves I needed in the 'house' hot water system. I have simplified the circuit and use 2 pumps in the coolant circuits. One (powered by the house battery) pumps the engine coolant through the 30 plate heat exchanger in the engine bay. The other is in the living space and pumps the coolant up the long lines from the Webasto Hydronic to the engine bay. I wanted to keep the engine coolant and 'house' coolant separate. I have a 19l calorifier made from a converted Corny keg with a 10mm stainless steel tubing coil which has the 'house' coolant running through it. I also have a 30 plate heat exchanger that runs the hot water feed directly through another 30 plate heat exchanger which helps to bring the hot water from the calorifier up to temperature without having to wait for the hot water to heat all 19l of the calorifier! It also allows me to take quite long showers. i also have an aerator shower head which helps make the hot water go further (although this means I have to turn the temp up a few degrees as it also cools the water as it atomises it). I'm still building this system and plan to make a video once it's finished. I'm planning to fit a second Webasto (cheap one this time!) as a backup as I'm planning a few sub-zero alpine trips over the next few years. I don't want a failed Webasto ruining my trip. The second one will go directly on the engine but still have a heat exchanger to connect to the house system.
Thank for watching and your comment. Our has changed a little and I am putting it together now ready for a trip after Christmas. We are keeping the 10L tank I installed. We can get 3 showers out of that with a blend at 40 degrees. It heats up really quick from the immersion element and uses very little power. I have the plate heat exchanger to the engine loop side and a secondary pump if need for cold mornings. The tax side loop will pass through a couple of cpu heat exchangers using a well known adapter for the diesel heater, it will just circulate the hot water out the tank. Effectively the engine could be pre heated using the diesel heater or the emersion element. Sound like you have a good idea of how yours will be working. I have been trying to get the doors insulated and carpeted also. The weather hasn't been conducive to any of it :-)
Yes I've got a plate heat exchanger ready to go into my camper, to pull hot water from the engines coolant system. I'm going to also reverse that heating system by adding an engine preheater. So I can use the engine preheater to warm the engine or warm hot water in a tank via the heat exchanger. I think this is fairly common in boats (house boat and canal barges) I have seen a few people do this in the USA in vans.
Yeah, great stuff. I considered a recon Webasto, we have a diesel heater though and it is simple to swap in for another one for less that parts for a Webasto repair. Boats use the running engine to heat everything I think. Makes perfect sense though to use engine heat, it's there and it's free :-)
WOW! Man, you could go into business designing these systems. I think now is a bad time to tell you I plan on pumping water in and out of old milk cartons lol. Looks absolutely fantastic.
Thanks Rob, wouldn't mind getting paid :-)
Whatever works, if milk cartons do the trick 🤠
Hey, this is pretty much what I'm doing! I found your video when I searched for where (and how many) non return valves I needed in the 'house' hot water system. I have simplified the circuit and use 2 pumps in the coolant circuits. One (powered by the house battery) pumps the engine coolant through the 30 plate heat exchanger in the engine bay. The other is in the living space and pumps the coolant up the long lines from the Webasto Hydronic to the engine bay. I wanted to keep the engine coolant and 'house' coolant separate. I have a 19l calorifier made from a converted Corny keg with a 10mm stainless steel tubing coil which has the 'house' coolant running through it. I also have a 30 plate heat exchanger that runs the hot water feed directly through another 30 plate heat exchanger which helps to bring the hot water from the calorifier up to temperature without having to wait for the hot water to heat all 19l of the calorifier! It also allows me to take quite long showers. i also have an aerator shower head which helps make the hot water go further (although this means I have to turn the temp up a few degrees as it also cools the water as it atomises it). I'm still building this system and plan to make a video once it's finished. I'm planning to fit a second Webasto (cheap one this time!) as a backup as I'm planning a few sub-zero alpine trips over the next few years. I don't want a failed Webasto ruining my trip. The second one will go directly on the engine but still have a heat exchanger to connect to the house system.
Thank for watching and your comment. Our has changed a little and I am putting it together now ready for a trip after Christmas. We are keeping the 10L tank I installed. We can get 3 showers out of that with a blend at 40 degrees. It heats up really quick from the immersion element and uses very little power. I have the plate heat exchanger to the engine loop side and a secondary pump if need for cold mornings. The tax side loop will pass through a couple of cpu heat exchangers using a well known adapter for the diesel heater, it will just circulate the hot water out the tank. Effectively the engine could be pre heated using the diesel heater or the emersion element.
Sound like you have a good idea of how yours will be working.
I have been trying to get the doors insulated and carpeted also. The weather hasn't been conducive to any of it :-)
@@traveling-taylors are you coming anywhere near Scotland?
Quite possibly :-)
Yes I've got a plate heat exchanger ready to go into my camper, to pull hot water from the engines coolant system. I'm going to also reverse that heating system by adding an engine preheater. So I can use the engine preheater to warm the engine or warm hot water in a tank via the heat exchanger. I think this is fairly common in boats (house boat and canal barges)
I have seen a few people do this in the USA in vans.
Yeah, great stuff. I considered a recon Webasto, we have a diesel heater though and it is simple to swap in for another one for less that parts for a Webasto repair. Boats use the running engine to heat everything I think. Makes perfect sense though to use engine heat, it's there and it's free :-)
Looks fantastic Graham.. you sure know your stuff. If you can do this in wolfie. What an awesome system... ATB. & Family...
Thanks Tim 🙂