When you’re wanting ways to lower utility bills, getting a smart thermostat is an intelligent decision. These devices adjust to your favorite temperatures and routine and then create an energy-efficient schedule that fits. What’s even better is that you can change and monitor your settings from just about anywhere with your phone, whether you’re sitting in bed or away from home. (You might even be able to get a free smart thermostat depending on rebate programs from your utility supplier in Mount Pleasant.)
In most instances, adding a smart home thermostat with the support of Olde Towne Heating & Air is a simple process if you have a newer house. But what if your residence is older or doesn’t have the proper wiring? Can you still install a smart thermostat without C wire? We’ll help you figure out the process so you can select the recommended thermostat and get energy savings for a long time.
What Is a C Wire and What Does It Do on a Thermostat?
The majority of programmable thermostats need batteries. When you’re making the move to a smart thermostat, you’ll discover that many have to have a C wire, or common wire, for power. If you don’t use this wire, your new thermostat may cause your heating and cooling system to have glitches.
You can determine if you have a C wire by doing the following:
- Cut power to the thermostat at the breaker.
- Take off the thermostat and check the wiring.
- If there are five or six multicolored wires, you have what you need for a smart thermostat. You might be wondering what color is the C wire on a thermostat—and the answer to that is typically blue.
- If there are three or four thin multicolored wires, you’re almost there. Ensure the C wire isn’t rolled up in the wall. If you can’t find one, we may be able to add one for you or you may be able to run your new thermostat without one.
- If you have two thick wires, you may be able to use a smart thermostat with an adaptor just for high-voltage systems. Or you may be able to use a battery-powered smart thermostat, like the Lux Geo Wi-Fi Thermostat, if your wiring isn’t right and you don’t want to install new wiring.
Do Nest or ecobee Need a C Wire?
Two of the top brands are the Nest smart thermostat and ecobee smart thermostat. If you have two to four wires, these thermostats could be a fit for your needs.
Nest says its thermostats are made to run on not a lot of power and can often share it with your heating and cooling system. However, you may need to have a specialist like Olde Towne Heating & Air put in a C wire with the Nest Thermostat E or Nest Learning Thermostat if you’re experiencing power problems or a battery that’s always drained.
ecobee connects with 24-volt systems (ones with three to six thermostat wires) and comes with a C wire adaptor. So, you’re taken care of if you don’t have a thermostat C wire.
Trust Olde Towne Heating & Air for Your Smart Thermostat Installation Needs
At Olde Towne Heating & Air, we’re always on the lookout for methods to keep you cozier while keeping utility costs reasonable. If you have questions about upgrading to a smart thermostat without a C wire, give us a call at 843-485-0967. We can help you pick the right model for your house and even put in new wiring if necessary.