Hot Water Cylinder Thermostat.
The TRT044 is a surface mounted mechanical thermostat used to control the temperature of domestic hot water cylinders (Uninsulated and foam lagged).
The unit comes complete with a cylinder strap and a wire strap which enables
the unit to be used also as a pipe thermostat.
The TRT044 can be used to switch a circulating pump, boiler or most common zone valves