Do The Boilers Have A Built In Frost Protection?

The boiler incorporates a built in frost thermostat which automatically turns on the boiler and pump if the water in the boiler falls below 5°C, providing the electrical supply is on. The boiler will operate until the water temperature in the system reaches approximately 10°C measured on the flow sensor in the boiler.

Any other pipework outside of the boiler should be protected from the risk of freezing and protected with insulation. Additional protection from external frost thermostat and pipe thermostat should also be considered.