40+ Hot Water Heater Not Heating Water. Quickly diagnose and repair your water heater problem with this comprehensive if a gas water heater isn't heating, a common problem is usually that the pilot light has gone out. Quite often to keep the water temperature consistent in each radiator they put a venturi t fitting at each base board transfers heat much faster therefore will sit cold while cast iron rads are hot for much longer time heating a room.
My electric hot water heater used to produce enough water for a couple or showers consecutively. It is probably a terrific product. Most newer hot water heaters only heat water when necessary.
Your hot water heater should work now.
An upper thermostat located behind a cover high on the heater. Your hot water heater should work now. The thermostat is a commonly replaced part. Like any other appliance, problems can come up.