Does Central Heating Work If Water Off. Your combi boiler would be the worst affected, as the heat exchanger could suffer, but your cylinder and radiators would probably be fine. If a tank is leaking, it may need to empty itself.
Natural gas central heating systems should continue to operate in instances where water from the mains supply has been cut off. The process begins when hot water is used to fill the pipes in the radiator. If you have a motorised valve then yes it would be a fully pumped.
Logic Combi 30 no heating DIYnot Forums
Our hot water works fine but our central heating only works when the hot water is on as well. It delivers heat throughout the house either by pumping warmed air through a system of air ducts or sending hot water or steam through pipes to room radiators or convectors. Natural gas central heating systems should continue to operate in instances where water from the mains supply has been cut off. The heat is transferred to a hot water cylinder where it can be used in a central heating system, showers, and taps.