How can I connect my wireless thermostat to my existing boiler?

Keep reading to see a step-by-step guide on how to do this.

If you’d rather have a professional carry out the work – which is recommended – simply enter your postcode into the search box below to connect with local experts.

How to connect a wireless thermostat to your existing boiler

Before starting this process, make sure the thermostat you purchase is compatible with your existing boiler. Once you’ve done that, follow these steps to set it up:

Step one: Safety precautions

Turn off the power to the boiler at the main electrical panel to ensure safety while making the necessary connections.

Step two: Unbox and read instructions

Unbox your wireless thermostat and carefully read the instructions, as there may be nuances in how each product is installed and set up.

Step three: Install the receiver

Almost all wireless thermostats come with a receiver that connects directly to the boiler and a remote control that acts as a thermostat. Find the existing thermostat wiring on your boiler, which will usually be a pair of wires running to the boiler’s control circuit.

Connect the wires from the receiver to the corresponding terminals on the boiler, which are usually labelled as “T” or something similar. Follow the manufacturer’s instructions for specific details.

Step four: Position the thermostat

Position the wireless part of the thermostat, which you’ll use to manage temperatures and schedules, in a convenient, central location in your home to ensure accurate readings and optimal performance.

They usually come with either a wall mount or a stand to make this step easier. Position it away from direct sunlight and other heat sources.

Step five: Pairing

Once the receiver and thermostat are in place, you can pair the devices so they’re able to communicate wirelessly. Follow the manufacturer’s instructions to do this correctly.

Step six: Power on and test

After the devices are installed and connected, switch the power back on to the boiler. Set the thermostat to your desired temperature and wait for the boiler to respond to your instructions.

You’ll know whether or not it’s working if the boiler activates to increase the temperature of your room, or if it remains off if the room is warmer than the temperature you set.

Step seven: Set schedules

One of the many benefits of having a wireless thermostat is that they allow for programmable schedules, which help you save on your energy bills. Set the temperature lower for when you’re not at home and higher for when you are.

Don’t forget to keep an eye on the power level, as most wireless thermostats are battery-powered and either need to be charged or have their batteries changed periodically.

If you’re having problems

Get help from a professional smart thermostat installer. They will be able to get it all set up for you in no time. Even better, it’s easy to see who is nearby to help you!

Search your postcode below to find smart thermostat installers near you.