We have just moved into a house and we have an approx 30yr old open CH system with expansion tank in the attic. It has a seperate boiler, pump & manual diverter valve for the hot water tank/Central Heating.
The expansion tank in the attic has only one pipe down, which i assume is the filler pipe so there is no vent.
Downstairs is on a room-stat (3 rads) with the upstairs rads on TRV's (3 rads).
I had a new radiator fitted last week, since then have had to bleed the non-TRV radiators daily. The TRV radiators do not need bleeding.
Have you any suggestions? Where would the air be coming from? Where is the water going? We have effectively emptied 3 radiators of water 3 times.
When they have been bled the radiators get lovely and warm, but within an hour only the bottoms of the radiators are warm.
Any thoughts would be appreciated. Many Thanks
The expansion tank in the attic has only one pipe down, which i assume is the filler pipe so there is no vent.
Downstairs is on a room-stat (3 rads) with the upstairs rads on TRV's (3 rads).
I had a new radiator fitted last week, since then have had to bleed the non-TRV radiators daily. The TRV radiators do not need bleeding.
Have you any suggestions? Where would the air be coming from? Where is the water going? We have effectively emptied 3 radiators of water 3 times.
When they have been bled the radiators get lovely and warm, but within an hour only the bottoms of the radiators are warm.
Any thoughts would be appreciated. Many Thanks
