I have an Everhot 204. Can anyone tell me how the hot water control works? It appears to control a flap valve, but what does this do? Somewhere I heard that it alters airflow around the rear of the hot water jacket. There is a round passage which opens into the flue which appears to be associated with this control. Phil
Re: Everhot 204 hot water control That's exactly it, Newairly. Usually, you'll leave it set on high (open), but it is possible to get the water too hot, even boiling, in some systems.