P
Peter1
Hi,
The vent pipe on our heating system pushes hot water into the header tank , usually in the middle of the night and quite noisily. Is this normal?
A couple of years ago we had a new boiler fitted. With the old boiler hot water was gravity heated. The new system is fully pumped with a Y valve. The vent and cold water feeds to the heating circuit are still the same as when it was gravity fed. Vent pipe comes off the feed pipe to the cylinder heater coil , just before the pipe connects to the hot water cylinder and cold feed is connected to the cylinder heater return pipe again near where it is connected to the cylinder. Is this correct? All the diagrams I've seen of fully pumped systems have the vent connection between the boiler and the pump and the cold water feed to the return close to the boiler. Also should there be a bypass circuit and valve in the system.
Another change is that Hive heating controls were fitted 2 weeks ago. Previously the hot water was left on all the time and we turned heating on and off with the room thermostat. The overflow problem from the header tank has started since the controls were fitted and hot water heating is no longer on all the time.
The vent pipe on our heating system pushes hot water into the header tank , usually in the middle of the night and quite noisily. Is this normal?
A couple of years ago we had a new boiler fitted. With the old boiler hot water was gravity heated. The new system is fully pumped with a Y valve. The vent and cold water feeds to the heating circuit are still the same as when it was gravity fed. Vent pipe comes off the feed pipe to the cylinder heater coil , just before the pipe connects to the hot water cylinder and cold feed is connected to the cylinder heater return pipe again near where it is connected to the cylinder. Is this correct? All the diagrams I've seen of fully pumped systems have the vent connection between the boiler and the pump and the cold water feed to the return close to the boiler. Also should there be a bypass circuit and valve in the system.
Another change is that Hive heating controls were fitted 2 weeks ago. Previously the hot water was left on all the time and we turned heating on and off with the room thermostat. The overflow problem from the header tank has started since the controls were fitted and hot water heating is no longer on all the time.