for solid fuel boilers with no cooling heat exchanger, 3/4” connections, opening temperature 97°C ±2°C
out of stock
Solid fuel boilers may get overheated during operation, mostly due to a power failure. The circulation pump stops while there is burning fuel inside the boiler, and the heating water temperature in the boiler starts rising very fast because the heat is not dissipated from the boiler. This danger can be prevented by installing a thermal relief valve that needs no electricity for its operation.