Recent content by DavidMG

Ok - now I am worried. I have checked the boiler connections (Potterton Netaheat Electronic 16-22) and they are as follows: Gravity HW from boiler 28mm immediately to zone control valve, thence several yards primarily horizontally to lower hot water tank coil connection and tee to 15mm...

Thanks for the responses - need a bit more help with this though please. Five years ago I used Fernox Restorer (the gentle one for older systems) and then Protector (MB-1) and Boiler Noise Silencer. At the same time I replaced the blocked 15mm feed pipe, the pump, the pump gate valves, the...

Hi, I have a standard gravity fed indirect hot water system and pumped central heating system supplying 12 rad's. The vent and feed from the F&E tank are connected to the gravity fed pipes close to the hot water tank. The hot water coming from the boiler connects to the bottom of the hot water...