I'm having probs with my gloworm combi boiler, I can get no hot water, although the heating is working fine. I have just read on another question that it may be the dhw thermostat. What is it, and...
I bled my spare room radiator three weeks ago when we switched on the central heating. Now it's stone cold, and I have to bleed it again. How long should radiators last between being bled? Why is it...
