The fan is wired to a 3 position switch, Off, Low, and High. I didn't see the need for a thermostat, since it really wasn't designed to be a "furnace". I use it as a source of supplemental heat to take the chill off while under way.
When dockside, and plugged into shore power, my a/c unit functions as a reverse cycle heat pump, and heats the entire boat. Now that is wired to a digital thermostat much like you would see in a house.
In the summer, even though hot water is flowing through the heater core, very little is dissipated into the cabin. In fact, to gives you some basis for comparison, it radiates less heat than the hot water heater. It's not even noticeable.
Bob Kuba
Quiet Island
#1292 1994
When dockside, and plugged into shore power, my a/c unit functions as a reverse cycle heat pump, and heats the entire boat. Now that is wired to a digital thermostat much like you would see in a house.
In the summer, even though hot water is flowing through the heater core, very little is dissipated into the cabin. In fact, to gives you some basis for comparison, it radiates less heat than the hot water heater. It's not even noticeable.
Bob Kuba
Quiet Island
#1292 1994