We have a Tiffin Phaeton that uses an Aquahot system. It will heat the coach including basement, heat the hot water (10 minutes; fast), or pre-heat the engine. Runs on diesel from the tank. Will not run if fuel is less than 1/4 tank. Requires maintenance annually (Iím a year behind).
Les & Pam
2017 Phaeton 40QBH-All Electric-380 ISL
2016 Jeep JKUS with Ready Brute Elite towbar