3 Wire Thermostat is for boilers and water heaters.A 5-wire structure is the most common one found in thermostats like a standard Honeywell thermostat found in most American homes. How many wires are there in a thermostat? What are different thermostats used for?Īn electronic thermostat may have a different number of wires, anywhere between 2 and 8. Usually, thermostat wires are plenum-rated unless they don't have to run through air-circulation spaces in buildings. What is a thermostat wire?Ī thermostat wire is a low-voltage solid copper wire used for different purposes within a thermostat and in the systems connected to the thermostat. There are various types of thermostats, but electronic ones are by far the most popular, followed by programmable electronic thermostats. Prices for common circular thermostats vary between $90 and $250.
The most popular brands of thermostats in the North American market are Lowe’s, EcoBee, Nest, Honeywell, and Emerson. Thermostats are used in individual heating, central heating, water heating, heat pumps, HVAC systems, and other equipment. Thermostat is a control device that regulates the temperature in a building or designated space. This blog provides an easy-to-understand summary of all things thermostat wiring. Thermostat wiring is a tricky topic due to complex color-coding of wires that go into the thermostat.