Indicates that when using a 2-wire setup, whether the thermostat draws power through the wires to charge a battery. This may cause some HVAC systems to operate unpredictably or erratically.

As the temperature changes, the contraption tilts and the mercury bead moves, making or breaking contact with the wiring. More sophisticated thermostats have replaced the mercury bead with ...

Here are the best smart thermostats that will intelligently heat and cool your home and save you money. When you purchase through links on our site, we may earn an affiliate commission.

The best way to check if a thermostat is compatible with the existing HVAC system is to determine the wiring requirements of the system. Shut off the power to the HVAC system before removing the ...

Installing a new thermostat typically costs more than replacing a thermostat. Wiring needs to be run through walls and ceilings for new thermostats. Installing new wiring for 120V line voltage systems ...

Example of line voltage setup for the thermostat.GearBrain If you decide to look at the wiring inside your furnace, you must ...

Unlock to see our ratings and compare products side by side The primary power for this thermostat is supplied via c wire (24vac). A "C" wire is not required for most ...

More advanced devices like the Nest Learning Thermostat can even learn from your habits to anticipate your needs and help you save money. Whether you're looking to turn your lights on from your ...

you can install a smart thermostat (provided your home has the right wiring). Every smart thermostat comes with installation instructions, whether in a printed pamphlet, on an app, or both.

Christina is a freelance editor and contributor with Newsweek’s small business team. With a passion for small business optimization and strategy, Christina has successfully launched her own ...

Smart thermostats are usually easy to install, but it's important to know how your system is wired before you begin. Always make note of your wiring before you remove your old thermostat ...