The lack of electronics leads to a very high efficiency of the device. Temperature range: 5°C to 30°C.
Frost Protection Thermostat Combi Boiler Heating Control Heat For Zone Valves
TOWER Frost Protection Thermostat Combi Boiler Heating Control Heat STTRFSN STAT
Tower Frost Protection Thermostat Combi Boiler Heat STTRFSN Brand New
Frost Protection Thermostat Combi Boiler Heating Control Heat for Controlling
TOWER FROST PROTECTION THERMOSTAT STAT STTRFSN 10A Volt Free Replaces Honeywell
Horstmann HFT4 Electronic Frost Protection Thermostat
