A large open vented system with 28 radiators 38kilowatt boiler (new) new pump, finding difficulties to get all radiators to heat up. Tried balancing, if you turn 3 off at one end of the house all the rest will run, but they won't all run at the same time.
If you turn all the radiators on it's always the same 3 that won't heat up unless you turn some others off.
I'm stumped....do you think it could be that the pump is the wrong size?
If you turn all the radiators on it's always the same 3 that won't heat up unless you turn some others off.
I'm stumped....do you think it could be that the pump is the wrong size?