Horstmann Battery Powered Electronic Room Thermostat
The HRT4-B is a battery powered electronic room thermostat designed to provide optimum comfort with close control of the energy used to heat the home.
The HRT4-B will only operate when 2 x AAA batteries have been fitted and the thermostat is wired into your central heating system.
- TPI energy saving software
- For use with a new installation or as a replacement
- 3 amp volt free change over contacts
- Ideal for use with combi boilers