Save Energy With A Programmable Thermostats

By Robert Robillard on Energy Saving

Programmable Thermostats

Learn how to install a programmable thermostat in 7 easy steps:

Save Energy With A Programmable Thermostats

Reduce your home’s heating and cooling costs by about 15 percent by installing a programmable thermostat. This is an easy do-it-yourself project, their cost ranges from $ 30 to $100.

Programmable thermostats automatically raise and lower the heat to an when you’re home, away or asleep.

Programmable thermostats will work with most gas or oil furnaces, and central air conditioners.

Here’s how to do it in 7 steps:

1. Turn off power to the heating and cooling systems at the main panel. Mark the wires with a tape and the letter that represents the terminal and unscrew them. Remove and discard the old thermostat.

If your old thermostat contains mercury, you’ll see a small glass tube with a shiny silver ball inside. Mercury is toxic. Take this type of thermostat to a hazardous waste disposal site.

2. There will be anywhere from two to five wires hooked up to the old thermostat. Label the thermostat wiring with masking tape using the letters on the old terminal screw letters as reference.

3. Use care or masking tape to prevent the thermostat wire from slipping back into the wall.

4. The thermostat may need to be configured to your heating system. Consult the instructions that come with the thermostat for system adjustments and programming. You won’t save energy if the thermostat isn’t programmed correctly.

5. Level the new mounting plate in position and mark the mounting screw holes. Drill 3/16-in. holes, insert drywall anchors and screw the plate to the wall.

Save Energy With A Programmable Thermostats

6. Screw the system wiring to the screw terminals on the new thermostat using the letter labels as reference (strip the wires back if necessary). These letters are standard; hook them up to the same terminals on the new thermostat.

Save Energy With A Programmable Thermostats

7. Snap the thermostat to the mounting plate and program.

SEE MY POST ON: How to Install a Programmable Thermostadt 

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About the author

Robert Robillard

Robert Robillard

Carpenter / Remodeler / Editor / Writer / Video Talent

Robert Robillard is a general contractor, carpenter and operates a remodeling company located in Concord, MA. He is the editor of and ToolBoxBuzz, and a has a weekly column in the Sunday Boston Globe. Rob is a recognized leader in tool and how-to information for building professionals, he hosts the Concord Carpenter Cable TV Show, offering advice on home repairs and maintenance. On his website, Rob uses his knowledge and experience to help and educate on best practices in the remodeling industry. His motto: “Well done is better than well said!”. Contact Rob at:

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