Part L Thermostat Thermostats for Electric Boilers | Time & Temperature Controls

If you're installing or replacing an electric boiler, Building Regulations Part L Thermostat requires that it is paired with an appropriate time and temperature control — a compliant thermostat that can schedule when your heating runs and maintain a target room temperature. A boiler installed without one fails to meet current regulations, which can affect your building sign-off, installation certification, and potentially your warranty.

The thermostats in this collection have been selected specifically because they meet Part L requirements and are suitable for use with electric boilers, making it straightforward to ensure your installation is compliant from day one.

What Makes a Thermostat Part L Compliant?

Part L requires that your heating controls provide both time control — the ability to programme when heating operates — and temperature control — the ability to set and maintain a target temperature automatically. A basic dial thermostat or manual switch does not satisfy this. A programmable room thermostat or smart thermostat with scheduling capability does.

For most single-zone electric boiler installations, one compliant room thermostat is all that's needed. For multi-zone systems, each zone requires its own independent time and temperature control.

⚠️ Check Compatibility Before Ordering

Electric boilers vary in how they accept external thermostat control — most use a simple switched contact or low-voltage signal input rather than a mains-switched output. Always confirm your boiler's control input type matches the thermostat's output before purchasing. If in doubt, contact our team and we'll confirm the right match for your boiler.