How much is saved by lowering thermostat? - Page 2

[annethcz]

I've been wondering the same thing. I just found this:

Typical savings are about one-percent per degree set-back for each eight hour period. So a five degree set-back from 10:00 PM to 6:00 AM would reduce your fuel costs five-percent.

http://www.energymatch.com/factsthermostats.html

[annethcz]

Originally Posted by mum4boys

I have read though there comes a point if you let the house become to cold that it will cost more to reheat the house.

I don't think this is true, all of the research I've done says the opposite.

From the same site I linked to in my post above:

Myth: A furnace works harder to reheat space back to a comfortable temperature after the thermostat has been set-back, resulting in little or no savings.

Fact: The fuel required to reheat a building to a comfortable temperature is roughly equal to the fuel saved as the building drops to the lower temperature. You save fuel between the time the temperature stabilizes at the lower level and the next time heat is needed. The longer your building remains at the lower temperature, the more energy you save.

http://www.energymatch.com/factsthermostats.html