Search results

I think this problem has been there since first install, the service engineer, yesterday, said the boiler wasnt working correctly and I needed to get vaillant out to fix it. It is 12 months old and under warranty. I have no faith in the orginal installers competence - long story. If mains...

posted on another thread when I should really have started a new one so here goes. An ECO4 installer has fitted Honeywell (OpenTherm) controls to a Valliant Open Vent Boiler with remote Cylinder. Based on room size and radiator size calculators I believe the radiatiors have been specced to...