THR810 Cylinder Thermostat is a water temperature thermostat designed for surface mounting on domestic hot water cylinders.

It is supplied complete with mounting strap for rapid and easy installation. Draining of the system or tapping of the cylinder is not necessary.

  • Secure Setting – Flush setting mechanism prevents accidental changes to set water temperature
  • Energy Savings – Suitable for use on uninsulated and foam lagged cylinders – maintains hot water in your cylinder without unnecessarily starting the boiler
  • Accurate sensing element – Senses water temperature in storage cylinders and water pipes and provides you with temperature control
  • Easy to install – wiring terminals are easily accessible and installation manual included


Buy now

Our heating products are stocked in many home and DIY outlets across the UK.
Alternatively you can buy this product directly from the following websites.


Honeywell Home Heating

We have a range of heating controls designed to improve the efficiency of your home heating.

Easy To Install

Easily accessible wiring terminals and installation guide included.

Instruction Manual