Heating & Gas Questions

No hot water - should we replace entire boiler or fix divert?
Heating & Gas  •  281 views  •  0 answers

We are having trouble with our boiler and can't get any hot water (heating still works) - before this happened we had several months where the water only got hot if we put the heating on. An engineer came out today to look at it and he said that the …

Controlling gravity hot water circuit?
Heating & Gas  •  276 views  •  0 answers

Something a little unusual. An AGA in an isolated cottage supplies the primary circuit to heat hot water. After a recent refurb the water from the tap is literally scalding. In order to control it, I thought a motorised valve and cylinder stat could shut down circulation in the primary …

Hot water flow in header tank
Heating & Gas  •  270 views  •  0 answers

Netaheat potter ton profile 50e with either hot water or heating - water leaves the boiler flow pipe, up into a T junction which is left to go to diverter valve or across and up one floor to header tank … hot water goes both directions - there is a …

How do I repressurise a Glow Worm Compact 24c boiler?
Heating & Gas  •  264 views  •  2 answers

After bleeding a radiator, 2 year old boiler showing zero bar, how do I repressurise?

Does outdoor temperature sensor need to be connected to something?
Heating & Gas  •  263 views  •  0 answers

I’ve lived in a Persimmon new build house for 8 years and only just noticed that on the exterior rear wall there’s a circular grey plastic box that’s not connected to anything, but the neighbours all have a cable coming out and going into the wall. The writing on the …

Constant working combi
Heating & Gas  •  255 views  •  2 answers

My combi boiler still sounds as though it is working although because of the thermostat settings there is no heat being produced through the radiators. It is the same when switched off via the time clock

Which pipe for gas connection please?
Heating & Gas  •  255 views  •  0 answers

I have a brand new Beko xdg621k freestanding gas cooker which has 2 pipes at the rear can anyone tell me which one is for natural gas connection please.

Hot water flowing through the tundish
Heating & Gas  •  248 views  •  0 answers

I have a rapid flow of water going through the tundish. I have an unvented Joule hot water cylinder and a combo boiler with underfloor heating on the ground floor and radiators on the first floor. Can anyone provide advice to stop the flow? Thank you

Repressurising boiler without a filling loop or valve taps
Heating & Gas  •  237 views  •  0 answers

My Vaillant Ecotec 24 boiler needs repressurising as the pressure is at zero. It looked simple to fix by turning the service valve handles, according tutorials. However, there are no handles on my boiler. Neither is there a filling loop. Tracked down service valve handles but cannot see how to …

Boiler water pressure has gone too low?
Heating & Gas  •  236 views  •  0 answers

Hi I have a main eco compact 25 Combi boiler the water pressure has gone to low I now have no hot water and no idea how to bring the pressure back up