2015 Thor Tuscany 45AT Schematics

Aqua-Hot 400D

What is hydronic heating?
A heating system that transfers heat by circulating fluid through a closed system of pipes. It’s also the foundation of Aqua-Hot heating systems and products.

At its most basic level, Aqua-Hot hydronic heating uses tubing to run hot liquid into heat exchangers that disperse heated air into living areas. Coils, with potable water running through them, wrap around the boiler to transport hot water to faucets and appliances. A variety of heat sources are used depending on the system, but all use some combination of the vehicle's engine surplus heat, diesel fuel or propane and AC shore power.

Manuals: