I have a tankless gas hot water heater that is mounted to an outside cinder block wall in the basement. The heater has a control panel with status lights, so obviously it is powered. I can see no electric service going to the heater. This is a 1950s era home so I can't imagine why they would run service through a cinder block wall as the original heater was likely to be gas.
The panel only lights when there is power. I am thinking the heater makes its own power from water flow with an impeller. Is this likely?
The panel only lights when there is power. I am thinking the heater makes its own power from water flow with an impeller. Is this likely?