The changeover feature (also referred to as Changeover) allows your thermostat to automatically switch from heating to cooling, or vice versa, depending on the temperature in your home. The thermostat has a mandatory 1.5° differential or "swing", so even if you set your thermostat heating temp to 70° and the cooling temp to 70° and turn
Now, let's look at the same house ( UA = 300) in the same outdoor conditions (30 °F outside) and set the thermostat back 8 °F for 8 hours. Since our heat loss equation is linear and 8 is 20% of 40, we would see a 20% reduction in the heat loss during that period if the temperature dropped those 8 °F immediately.
Features. The ComfortSense® 5500 Series thermostat is an electronic 7-day, single-stage, programmable, touchscreen thermostat. Features are: Large, clear color display that shows the current and set temperatures and time. Ergonomic design. An electromechanical thermostat typically contains either a bi-metal coil or a metal strip. When the temperature changes, this coil or strip will move, causing a vial containing mercury to tip to one side. The mercury flows to one end of the vial, signaling that the heating or cooling needs to be turned on. Regardless of the kind of thermostat . 413 260 734 239 401 212 34 13

how do thermostats sense temperature