Hello all, first time poster here.
I have recently had a vaillant 937 fitted and a 350F vaillant controller. Outside of the timed heating and hot water, the boiler is constantly running. Is this because the its trying to get to the desired temperature on the thermostat?
Thanks,
diysim
I have recently had a vaillant 937 fitted and a 350F vaillant controller. Outside of the timed heating and hot water, the boiler is constantly running. Is this because the its trying to get to the desired temperature on the thermostat?
Thanks,
diysim