Most programmable thermostats are either digital electromechanical or some mixture of the two.
Energy savings per degree thermostat.
For every degree you turn down your thermostat and leave it there you save between 1 and 3 percent of your heating bill not to be confused with your gas bill if you have a gas dryer range and or clothes dryer.
If you set the temperature back for non occupied hours you won t realize any savings.
On average i would estimate that adjusting your thermostat could change air conditioning costs about 10 percent per degree you change for the first few degrees from 75 degrees.
With the billions of data points that our mercury smart thermostat platform collects every month energyhub s in a unique position to see how well heuristics like that stack.
The department of energy estimates savings of about 1 percent for each degree of thermostat adjustment per 8 hours and recommends turning thermostats back 7 to 10 degrees from their normal settings for 8 hours per day to achieve annual savings of up to 10.
Set the thermostat up a few.
If everyone used an energy star certified smart thermostat we would save 56 trillion btus of energy saving 740 million each year and offset 13 billion pounds of greenhouse gas emissions each year equivalent to the emissions of 1 2 million vehicles.
Retirees value comfort over energy bills.