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Jane Oppen 09-27-2010 07:12 PM

tankless water heater
our oil company tells us we can't shut off the furnace as we have a tankless water heater attached to the furnace. We are away most of the summer so are paying for the water to heat while no one is using it. Why can't we shut down the furnace while away?

kenmac 09-27-2010 07:16 PM

The only time you pay to heat water with a tankless is when you turn on the hot water.

jerzeedivr 10-05-2010 02:56 PM

hot water coil
I also have an old hot water boiler that has a domestic hot water coil that makes continuous hot water. You can turn off the boiler and save oil, but there will be no hot water unless it is on. I turn mine off and on all the time because its a summer house and when its gets real hot a warm/cool shower is fine. Sometimes we turn it on for showers,dishwasher,washing mach. then turn it off in the summer.

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