When the thermostat feels the air temperature rise above 72, turn on the air conditioner. The cooling unit then removes heat from your home. Then, when the thermostat feels the air cooling to 72 degrees, it turns off the air conditioner. These are several thermostats connected to a control panel, which operates the dampers within the ductwork of your forced air system.
Thermostats constantly read the temperature of your specific zone, then open or close the gates inside the ductwork according to the thermostat settings. System zoning is not only useful for houses with inconsistent ambient temperatures, but is also ideal for heating or cooling individual rooms depending on the desired temperature setting. If you have a normally empty guest room, simply close the door and close the door. Before we talk about how a thermostat actually controls the temperature in your home, we need to address the types of thermostats your home can have.
While most homes today have an electronic thermostat, older homes may still have electromechanical systems. Each of these thermostats works a little differently. Electronic thermostats are easy to understand. They work similar to a small computer in that they use sensors to determine whether or not your home is at the right temperature.
They also offer features and benefits such as programmable settings and Wi-Fi features, allowing you to keep your home at a different temperature during the day or night, whether you're at home or away. Electromechanical systems can be a little more difficult to understand. An electromechanical thermostat usually contains a bimetallic coil or a metal strip. When the temperature changes, this coil or strip moves, causing a vial containing mercury to tilt to one side.
Mercury flows to one end of the vial, indicating that heating or cooling needs to be turned on. Regardless of what type of thermostat you have, too many temperature changes cause your system to work overtime. If you constantly turn your thermostat up and down, you may find that you're wasting a lot of energy. Proper thermostat control is important to conserve energy and save money.
The basic function of a thermostat is to regulate the operation of heating and cooling equipment in your home. You set the thermostat to the desired temperature and the thermostat turns the equipment on and off to maintain that temperature. A thermostat is essentially a circuit breaker. The thermostat senses the temperature and turns the air conditioner or heating on and off as needed to maintain the desired temperature.
The oven thermostat is the nerve center of your home heating system. It is the main control point that determines when and how much heat the oven will deliver. But despite all its mystery, the thermostat is actually a very simple device. At its most basic level, it's simply a temperature-sensitive switch.
The science behind the thermostat is quite simple. As things heat up, they expand, and as they cool, they contract. This is known as thermal expansion, and mechanical thermostats use it to turn an electrical circuit on and off. You'll usually find bimetallic strips and gas-filled bellows on most thermostats.
Try setting the thermostat to be closer to the outside temperature when you are away from work during the day. Once you have adjusted the temperature, the thermostat is supposed to turn the heating on and off, as needed, to keep the room more or less warm. Once the most common type found in homes, the bimetal mercury contact thermostat is an older type of analog (not digital) thermostat. If you have specific heating and cooling needs to be comfortable, you've probably spent a little time looking at and operating your home's thermostat.
The mechanical contact thermostat uses a simple mechanical contact instead of a mercury contact switch. It simply says a wake word, such as thermostat, followed by a command such as raise or lower, and the rest is automated. Wi-Fi-based smart thermostats are now available and allow users to control their home thermostat with the help of a touchscreen smartphone. Talking thermostats can end up saving you a lot of time, money and stress by alerting you when you need your system serviced.
Many homeowners are hesitant or unwilling to make the transition to programmable thermostats and system zoning because of the initial cost of installation. If you feel that your house is too hot or too cold, you'll probably head straight to the thermostat to fix the problem. Talking thermostats are also programmable, allowing you to heat or cool your home only when needed. .