2021 Cargo T350 EL High roof AWD Ecoboost
I'm curious about the thermostats. I know they are available in the nice Rixen system, but how does that work when someone DIYs a system by combining a heater (e.g. Espar S3 B5E) + air heat heat exchanger (many to choose from) + Isotemp for water heating?The hydronic heater heats and circulates coolant which passes through a heat exchanger inside a hot water heater tank to provide domestic hot water and it also can pass through a hydronic air heater to heat the air inside the van. The hot water tank acts as a 'battery' of sorts so the coolant heater doesn't have to cycle on/off as much as well. So there's a thermostat on the hydronic air heater that kicks on when the air in the van reaches the low setting and then there's a thermostat in the hot water tank that kicks they hydronic heater on when the hot water reaches it's low temp setting. Often the coolant loop taps the engine's coolant loop, either directly or through a plate heat exchanger that allows you to heat the hot water tank when the engine is running as well.
Oh, the plan is to use a dedicated heater such as https://www.eberspaecher-na.com/fil...echer-fh-pi-evb-hydronic-s3-economy-cs-en.pdfThanks for the links.
I meant when the van sitting and not running the engine. The heat from the engine will only last for a few hours. If you have a hot water tank (heat reservoir), it may last for 24 hours. I believe that we still need a supplemental heat source.