One of the primary focuses of every homeowner is creating a comfortable environment. That means keeping the home cool in the summertime and warm in the winter. On top of that, the goal is to accomplish this level of comfort while not spending a fortune doing it. To be successful, you will need to ensure you have the right type of air conditioning and heating unit, proper insulation, good weather stripping, storm windows and doors, and an efficient thermostat.
Back in the 17th century, the thermostat was invented by a man named Cornelis Drebble. This invention consisted of taking a float and placing it inside a mercury thermometer. This thermometer was then connected to a damper cover located on a furnace. Once the mercury in the thermometer would reach a certain degree, the float would trigger the damper to open. Although the thermostats on the market today are quite different and far more sophisticated, they do much the same thing.
The way a thermostat works is with a sensor for temperature. When a certain level is reached, the switch is triggered to either open or close. When this happens, the electrical circuit running the air conditioning or heating system is interrupted. Typically, this is done with a low-voltage type circuit.
For a thermostat to work properly, it has to eliminate dramatic swings in temperature. As we all know, during the winter when the heating system is running, the room temperature will drop to a specific point, at which time the thermostat triggers and the heat goes on. A good thermostat will maintain a home�s temperature within a two-degree range.
As you begin shopping for a new thermostat, you will find all types of styles although there are really just two types. The first is an electomechanical thermostat, which have a mechanical sensing device for temperature. This device generally consists of a bi-metal strip or coil. Made from two connected metals, a change in temperature will either expand or contract the metal strip or coil, making it move.
Then, many of these metal sensors are attached to a very small glass vial of mercury so as the strip or coil moves, the vial tilts, to one side or another. This type of thermostat has two contacts located on either side of the vial so as it tips to one side, the heat is activated and as it, tips to the other side the air conditioning system is triggered.
The other type of thermostat is electronic. With this type, a heat-sensing element is used along with circuitry. As temperatures change, the heating or cooling is turned on. This type of thermostat can be programmed, meaning you can set the air conditioner higher at night and lower during the day or even set temperatures at various hours. The same process would apply for the heating system as well. This option is ideal for people wanting to save money, travel often, or work outside the home. They can program the thermostat so they gain the highest level of efficiency and affordability.