Hi all, I'm contemplating picking up a Chinese knockoff of a Webasto Thermo Top to heat a (separate) coolant loop. This loop will keep my fresh water tank thawed via an in-floor coolant loop, and also heat my domestic hot water using some sort of heat exchanger. However, I'm not really sure what kind of heat exchanger I need.
I'm thinking something like this on Amazon would work: https://www.amazon.com/Exchanger-Pla...13&sr=8-9&th=1
However, it's surprisingly expensive, and I'm not sure how many plates I really need?
The alternative would be something like this:https://www.westmarine.com/buy/kuuma...16?recordNum=4
I don't really need the 120V option but I guess it's not bad to have.
Stupid me, I had a Webasto Scholastic but I sold it and took the coolant loop apart, so at this point I don't plan to loop in the engine coolant as well like somewhereinusa did. I'm not THAT great with plumbing and would rather minimize complexity.
Any pointers would be greatly appreciated, I'm just starting to figure this out as of today and have plenty of time to plan.