3887360172 dd98129aab m How much energy will I save if I turn my gas furnace off during the day, instead of leaving it on at 66?
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Question by terryc84: How much energy will I save if I turn my gas furnace off during the day, instead of leaving it on at 66?
If the temp inside the house doesn’t drop below 66 anyway, how much energy does the natural gas furnace use just from being turned on, even if the thermostat doesn’t kick on to make it heat?

Best answer:

Answer by flea
If you have an electronic ignition you would save nothing…If you have a standing pilot light you would save some over a period of time, but..you would have to re-light the pilot everyday.
If the temp inside the house drops to low, it takes more energy warming the cold mass backup, than leaving the temp set low. Every house is a bit different

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