Install a Digital Thermostat

STEP ONE: BUY A DIGITAL THERMOSTAT

This one is easy, we’ll wait here until you get back from your local Koopman Lumber store with one of our great digital thermostats.

 

STEP TWO: SHUT OFF POWER TO YOUR FURNACE

Turn your old thermostat down all the way, then go to your breaker box and turn off switches to your furnace (and air conditioner if applicable).  If the thermostat is on electric baseboard heater, call an electrician. Sorry it ends here for you but you need an electrician to do work past this point

STEP THREE: REMOVE THE OLD THERMOSTAT

Start by popping off the top of your old thermostat. Most models will come right off, but some have locking screws in place. Once the cover is off of the wall-mount (or sub-base) should be exposed. Unscrew this from the wall and take a look at the wires on the back side.  Helpful Hint: Many older thermostats contain mercury thermostats contain mercury and should be disposed of properly, if not recycled.

STEP FOUR: LABEL THE WIRES

Thermostat Terminals

When you unscrew the wall mount, you should see several wires running to the back of the old thermostat. With a piece of masking tape, label each wire according to its terminal. If you’re unsure of what that means, take a look at the photo on the right. See how each wire goes to a set screw? And how each screw has a letter next to it? These are the terminals. This is a significant step because you will need to attach the wires to the correct terminal later! Once you’re done labeling use a screwdriver to disconnect the wires. Then take another piece of masking tape and secure the wires to the wall, so they don’t slide back down behind the wall.

Note: There may be extra wires that aren’t in use and that’s OK, simply disregard them!

STEP FIVE: MOUNT YOUR NEW THERMOSTAT

Take the mounting bracket from your new thermostat and place on the wall where the previous thermostat was. Feed the wires through your new sub-base and use a level to line it up on your wall. Now for this part we recommend marking the wall through the bracket’s mounting holes using a pencil. Then drill out the holes in the wall. Make sure that drill bit you use is smaller than the screws provided.

If you hit hollow space behind the wall, use the plastic anchors included with the new thermostat.  Note: Anchors are important for protecting your wall. They give the screw a secure hold where it won’t eat through your drywall or plaster with the threads and quickly loosen.

STEP SIX: REWIRING

Line up the new bracket with the hole in the wall and connect the wires to the terminals. Take each wire that’s labeled and find it’s proper terminal in the new thermostat. Use a screwdriver to attach each wire to the correspondingly marked terminal. Don’t forget that you might have some extra wires. That’s still OK! Don’t attach those to anything.

STEP SEVEN: INSTALLING THE FRONT

With the wires attached all that’s left is to install the front. Start by adding the proper sized batteries before you place it on the wall (the packaging will have this information, but you can probably tell just by looking at it). Most thermostat fronts will just pop right on. If not, consult your users manual.

STEP EIGHT: START USING YOUR NEW THERMOSTAT!

Turn your furnace and AC back on at the breaker and get ready for a new era of energy efficiency in your home. Your new thermostat will start saving you money right away. Remember that your new digital thermostat will take some getting used to, so feel free to play around with the temperature for a few days to get the feel of it. Take some time to fully explore your thermostat and get a feel for everything it can do. It may even feature some capabilities that you weren’t even aware existed, so get in there and give it a try!