How to Install a GPS-Enabled Smart Thermostat

From This Old House.

Ask This Old House plumbing and heating contractor Richard Trethewey installs a thermostat that can be programmed automatically from a smart phone.

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Time: 2 hours

Cost: $400

Skill Level: Moderate

Tools List for Installing a Smart Thermostat:
Needlenose pliers

Shopping List:
GPS enabled thermostat

1. Before doing any work, turn off power to the heating/cooling system.
2. Disconnect and remove the old thermostat. If it contains mercury, it needs to be disposed of properly. Check local regulations for more information.
3. Feed the wires through the thermostat, level the thermostat, and screw it to the wall.
4. Use the app to help determine the correct wiring configuration for your system.
5. Push the thermostat wires into the correct terminal.
6. Attach the cover to the thermostat and configure through the app.

Richard travels to Pittsburgh to install a thermostat that interfaces with a smartphone to save energy and money.

Richard installed the Lyric thermostat, which is manufactured by Honeywell (

Expert assistance with this project was provided by Fire & Ice Heating & Cooling (

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Homeowners have a virtual truckload of questions for us on smaller projects, and we’re ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O’Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.

This Old House releases new segments every Sunday, Monday, Wednesday and Friday.

Keywords: This Old House, How-to, home improvement, DIY, ask this old house, richard trethewey, smart thermostat, heating, plumbing, GPS

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