A line voltage thermostat is a popular choice for regulating the temperature of heating and cooling systems that require direct electrical power. This type of thermostat typically has two to four thick wires coming out of the back and is attached to the wall with wire nuts. Line voltage thermostats are available in several styles. Some have programmable settings and adjust the temperature of the house according to the time of day.
Some models are nonprogrammable and other features include sound-proof operation, backlit LCD display, and electronic sensors. A good line voltage thermostat will work in both 208V and 120V and will provide precise temperature control. It will also come with a lock option. You should also check the current rating of the thermostat. It should be between 15 and 40 Amp.
Line voltage thermostats are also used in electric baseboard heaters, fan-forced wall convectors, and electric under floor heaters. Some units use multi-speed fan control, so be sure to check the thermostat’s instructions carefully. You can also check the thermostat’s label for warnings about line voltage.
Most people who have line voltage heating systems have more than one thermostat. A typical set-up involves a thermostat in every room of the house. This can make it difficult to change the temperature in a home without adjusting all the thermostats.