CH is working fine, but for interest wondered if someone could help explain the following please.
The pipe out my water pump (POST boiler output) splits three ways:
1) CH motorised valve
2) HW motorised valve
3) Pipe straight back to boiler input, with tap.
What is the need for the pipe back to the boiler? The tap is open, and can only think without it the water pump would get a bit upset when both valves closed and pump still running.
What stops all my newely heated water going straight back to the boiler, and circulating round the rads?
Ta,
Chris
The pipe out my water pump (POST boiler output) splits three ways:
1) CH motorised valve
2) HW motorised valve
3) Pipe straight back to boiler input, with tap.
What is the need for the pipe back to the boiler? The tap is open, and can only think without it the water pump would get a bit upset when both valves closed and pump still running.
What stops all my newely heated water going straight back to the boiler, and circulating round the rads?
Ta,
Chris