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have baseboard heat boiler runs off furnace want to shut off furnace to save oil will it hurt anything
The water being held in the water tank when the furnace shuts off is at a set temp, the water tank hopefully is insulated, as time passes, the water temp has to drop because the furnace has not come on to maintain the set temp, also the controller could be faultly that controls the water temp for the hot water heater, the only time you have hot water is when the furnace runs.
an electric furnace runs off of 208/230 Volts while a typical gas furnace runs off of 120 also a gas furnace will have a valve for the gas relay where the gas enters the furnace.
Gas tankless water heaters use high-powered burners that quickly heat water as it runs through a heat exchanger. It is 22 percent more energy efficient on average than the gas-fired storage-tank models.
a furnace
A blast furnace runs continuously, and input materials are continually dumped in at the top to make their way down through the furnace. Shutting down a blast furnace for relining or other work is a major event in its life.
check to see if drain to unit outside in draining may be clogged
A resistance furnace runs on electricity so it will be some type of electrical transformer.
To make electricity, the most common way is to burn something that heats water that creates steam that runs a fan/turbine. Coal fired electricity is when the thing that is burnt is coal.
The water quickly runs off and may form a flash flood.
The coal heats water into steam the steam runs turbines connected to generators.