A Matter of Degrees

Be careful not to overheat or overcool rooms. In the winter, set your thermostat at 68 degrees in daytime, and 55 degrees at night. If you are cold at night, add a blanket or close the door and use a heater in your bedroom.  Either is more efficient than heating the whole house or apartment while you sleep.

Lowering your thermostat just two degrees during winter saves 6 percent of heating-related CO2 emissions. That’s a reduction of 420 pounds of CO2 per year for a typical home. 

In the hot weather, set the temperature higher than you might think is comfortable.  Cooling systems remove humidity, so the higher temperature feels cooler than that same air temperature with outside summer humidity.