central

Needing to change a radiator in bathroom and will need to change out trv and lock shield. On the bottom radiator I have this valve but no drain off attachment. What can I add to this to attach a pipe to drain off.

central heating radiators to feed upstairs and downstairs main paperwork runs in ceiling void downstairs ,need to tee off to radiators downstairs do I tee off from above or below on the main pipework to avoid airlocks

The house has a gravity heating system. I replaced an old failing pump Grundfos UPS 15-50 (130) with Grundfos UPS3 15-50/65 130 I have drained the system and bleed the radiators for air. The problem is that since replacement of pump boiler Glow warm (about 15 years old) comes on for about 5...

Hi all, Not posted for some time but come up against a small problem. Been off the tools for many years now but I think I know the issue but looking for some reassurance Boiler isn't firing when programmer and room stat is calling for heating, but does for HW. It's a Y plan system, new house...

I'm looking to expand my central heating system by adding a new bathroom UFH zone. I'm also changing the pipes feeding the loft radiators to 22mm, instead of 15mm. Early discussions with my heating engineer talked about introducing a Low Loss Header and one or more additional pumps. The...

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Hi there just to ask on wiring for a salus 2 channel programmer. We only have the boiler coming off this at present. We don't want to seperate the rads and water as yet as this wiring is upstairs! So we are using two channel programmer to basically operate the boiler. We have LNE coming off a...

Hi This is my second question and follows on from discoveries made while investigating dropping flow rates where you guys contributed a lot. I have made an access point to the crawl space and had a look around. Let me say at this time we are a living in a cottage so all is on one level. A...

Good morning everyone, I have a big old vicarage which needs a new regular boiler. They also want fancy mixer taps in the kitchen . They have two hot water cylinders linked together, a shower pump and curved old radiators in the bay windows. I'm agonizing over what to do. The easiest option is...

Hi All, Just a quick question, would it be possible for me to shut the gate valve to the flow pipe to the central heating and open the return at any radiator without it causing a mess? From what i know, the flow goes in to the radiator and after coes out as the return, so technically if the...

Hi there, I am building a single storey outhouse at the bottom of my garden and I want to install two radiators in there. I’m just trying to ascertain whether it will be feasible to just connect them to my existing central heating circuit in the main house? My current boiler is a Vaillant...

I'm having some rumbling and water trickling noises in radiators on my central heating system. When the hot water clicks on there is no problem and if the central heating clicks in at the same time again there is no noise - but if the central heating doesn't come on and the thermostat is turned...

hi.i'm repositioning radiator in bathroom but there's no isolating valve on pipework..after i've turned electric off to the boiler and drained down the system will i still be able to have a shower,fill the kettle while the radiator is re-plumbed in the new position.thanks

A couple of years ago I had a new central heating system installed as part of a full modernisation. Unfortunately I’ve been having problems with other aspects of the renovation so for a while I’ve been running it without a control system or TRV’s (I have a Honeywell EvoHome set ready to go but...

Changed from a gravity feed boiler system to a combi boiler and had problems with noisy pipes? About 4 weeks ago now had a new combi boiler installed, and from day 1 had noises from the heating pipes even though not on. Thought I was just up grading to a more modern space saving cost efficient...

Hi all, Can anyone give me some advice as to why when I switch central heating to water only in summer, it doesn't take long for the sounds of rushing water in and around the circulation pump inside the airing cupboard. If I call for radiator heating and the 3 way valve goes to mid position...

My central heating won't turn off via the wireless thermostat. I can see that it communicates correctly so suspected a problem with the zone valve. It is a Honeywell 2 port and I notice the manual level is completely loose and I can't lock it in the manual 'on' mode. We have other zones and...

I’ve tried unscrewing this thinking I can use ptfe tape and re-screw it, but it’s not budging. I don’t want to force it if I’m wrong and it doesn’t have a thread. Does anyone know please?

Hi My pump has started making a loud rattling noise. I’ve undone the screw at the front and no air escaped! Any ideas would be most welcome thanks

Our central heating system "bangs" sometimes when the Hot Water comes on. A single bang. The engineer came and replaced the mid valve actuator. This had no effect. The engineer came back and replaced the mid valve. This seems to have had no effect. We have a recording taken on my iphone when...