I installed a new cylinder and re-plumber the primaries as cylinder was in new room.
The primaries used to have a 22mm F&E pipework layout but I chose 15mm for expansion and feed pipes (22mm primaries). I now get hot water in the new loft tank, is this simply because there is not enough water volume in the F&E pipework now?
It used to be gravity on the DHW side, pumped on CH. Its now fully pumped (two zone valves, two pumps) because the new coil is a high efficiency coil in cylinder.
Cheers
The primaries used to have a 22mm F&E pipework layout but I chose 15mm for expansion and feed pipes (22mm primaries). I now get hot water in the new loft tank, is this simply because there is not enough water volume in the F&E pipework now?
It used to be gravity on the DHW side, pumped on CH. Its now fully pumped (two zone valves, two pumps) because the new coil is a high efficiency coil in cylinder.
Cheers