Quote:
Originally Posted by Barnes
This is absolutely false. The rate of heat loss of your house is a function of the difference between the two temperatures. The lower the temp in your house the slower it loses heat. If you keep it warm, you lose more heat faster. You use less energy brining it back to temperature then maintaining it throughout the day/night or whenever you sleep/work.
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^^truth right here, plus inside of most thermostats is a device called an anticipator. It acts as both a cutoff when the temperature is approaching the desired level and it also causes the thermostat to activate upon a steady drop. In other words the faster you lose heat in your house due to a higher temperature, the more frequently it causes your furnace to cycle in a non linear fashion.