central heating

I have a Honeywell v4073a1039 3 port valve in my heating system and now the hot water and the central heating work intermittently, though banging the valve with my hand seems to bring it back to life, sometimes briefly sometimes until it switches off whereupon on starting again many hours later...

Hoping someone can help me solve an ongoing mystery of why my boiler sometimes fires up and sometimes doesn't... Worcester greenstar r1 boiler with an towerchron qe2 timer..it used to work fine, and respond reliably to the programmer but now only sometimes....why???!!! Having read various...

Hi, Sorry, probably a really noddy question - I'm really confused by the heating system in my new house - there are header tanks in the loft but also an expansion vessel adjacent to the boiler. Can anyone point me to a diagram that might explain how the system may be configured please? Thanks.

Hi, the builder that built my house chose to bury the copper microcore central heating pipes directly into the plaster. Over the years the pipes have expanded and cracked the plaster. I'm now about to decorate the hall and would like to know how to hide these pipes properly. I've probably got...

OK, I last posted in here in 2009 with guidance given on a new system. https://www.diynot.com/diy/threads/thermal-store-heat-bank-or-two-combis.170502/ At the time I was running 2 combi's twinned to supply whole house. In the 2009 post I was looking for guidance into a replacement system as...

Our house has the main central heating thermostat in the sitting room. We have just had a log burner installed in that room meaning it heats up very quickly. However this also means that the thermostat reaches temperature before the rest of the house is heated, leaving the upstairs cold...

Hello everyone, (it's my first post but I was reading posts here for a while now) The situation: My wife and I just bough a 3 bedroom semi-detached house. The house has an old back boiler in the living room behind the fire place, cold water tank in the loft and a hot water cylinder in the...

Hello - we have a Grant Euroflame 70-90 outdoor kerosene condensing boiler which has a Reillo RDB 2.2 Burner. whilst I was cleaning it out of soot inside the other day I got a magnifying glass and had a look what was stamped on the Danfoss nozzle jet and it said 60's - now the specs for a...

Here's videos of my efforts and progress so far I've almost completed the whole ground floor now just the remaining of the hallway I can't do till I remove the old stair but I have completed the entire downstairs central heating pipes all now insulated. So my next project now is building the new...

Hi A problem has recently started on my Main Combi 30 Eco elite. When the CH is set to off on the timer the upstairs radiators are getting hot. This seems to get worse when the hot water is running for a while. I have noticed that even when the CH is off and no hot water is being used the...

Hi all, We've just moved house from a small place with a combi, to a place with a cylinder system. This type of system is all new to me, so apologies for asking any obvious questions! Firstly, does anyone by chance know the approximate age of an Ideal Classic RS Room Sealed boiler? Corgi Home...

I've started a massive upgrade on my house following finding out I had a cowboy builder who done my loft did everything wrong as he didn't fire proof and insulate the loft which is technically dangerous. Which the building control failed to enforce the regulations at the time and after forcing...

Hi all, I was hoping someone could just confirm that I have the right wiring setup to let me install a Drayton LP711. My boiler is a combi Vokera Linea 28HE. It currently does not have a time clock. To turn the heating on I select Winter in the mode selector. Hot water is on demand always on...

Hi All I recently just had a full new central heating system installed, all pipes have been replaced and new hot and cold pipes have been replaced to cater to my new home extention and home. I also have a combi boiler. I paid British gas £8795 for the job. This was yesterday. However today I...

Hi all, We have a Worcester Bosch Greenstar 30CDi Combi boiler, and are installing the Honeywell Evohome system with HR92 wirelessly controlled TRVs. My plan had been to have a TRValve fitted to the radiator in our hallway, where there currently isn't one as the thermostat is based there. In...

Hi folks, Thanks for taking a look here. We have a Worcester Bosch Greenstar 30CDi Combi boiler, and a Danfoss RX-1 unit as relay to it. Existing Wiring: From what I can work out from the wiring guides for the Honeywell BDR91 and the Greenstar, I need to do the following: I believe I've...

the boiler fully works but every few hours the hot water light will start flashing and the boiler sounds like it's working, but there is no hot water running I have to reset the boiler to stop it doing this Does anyone know what this is? Thanks

As a part of my renovation project, I will replace/relocate some radiators and put plastic pipes (current pipework is kinky 8mm copper microbore). While things are relatively easy with upstairs, I am not sure how to approach downstairs. On top of the solid floor, I will have 25mm Celotex...

I recently moved into a new place and have had some massive electricity bills. The house seems to use about 9kw of electricity a day when we are not even there which seems insane. I think the boilermate is the culprit but it would be great to get some advice on - whether the boiler energy...

Grant Euroflame 70-90btu outdoor condensing boiler unit (kerosene oil burner) Riello RDB2 Burner: When my boiler first starts up in the morning it only heats upstairs rads and immersion tank and fair enough once its cold the burner stays on a long time to heat it up to 60-65c , but once its...