My furnace turns on even when the house is warm! I supposedly have on demand hot water so I thought that unless it was cold or something was using the hot water the furnace shouldn't run. What am I missing? Sorry for my stupidity on the subject....I've always heated with electric or a monitor before.
As always.....thanks for the help. I'd be lost without this group!!!!
Furnace of boiler? Furnaces heat air, boilers heat water.
In a system that both heats the house and hot water, it maintains a reservoir of hot water ready for use. If that water cools down too far, the boiler burner will start and bring it back to temperature. There is a differential setting for that also.
You want to be sure you don't have water circulating from the natural tendency of heat rising in the pipes also.
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