central heating

Hi guys, Hoping for a bit of advice as boiler has gone down with a 3 month baby in the house! Have a Vaillant Ecotec 418 has worked pretty solidly for 5 years. In Oct 2020 we had a sealed system fitted to improve water pressure and get rid of header tank in loft. Boiler copes absolutely...

Hi all, got the above boiler that was installed in the house back in 2009 before we moved in in 2017. The boiler works as it should, it heats up the hot water and the radiators fine and everything is balanced. however it has started to act rather strange with the heating on. The boiler will...

So we have a conventional boiler and CH system and recently (last week or so) I've noticed it getting worse at heating the downstairs radiators. For a bit of potentially useful background - In November I added a rad in our basement and balanced the system after that things were working mostly...

I recently installed a hive dual thermostat to work alongside my Worcester Greenstar 34Cdi classic. The water side of things works perfectly. Boiler fires up, hey presto. The heating however does not fire the boiler. The heating only works if the water is on as well. Anyone got any ideas. Please...

Where can I buy five core cable in which the conductors have the same colours as most central heating two-port zone valves (i.e. grey, orange, blue, brown, earth). Thus is so that I can re-route some cable runs. I know I could use five core with other colour schemes, and I can get plenty of...

Hi, I currently have 15mm copper ch pipes running along the wall feeding a radiator in a curved bay window. I'm getting a new curved rad. and would like to hide the pipes. Brick/block cavity external wall and solid concrete floor. Has anyone done this? And if so how? Thanks for reading.

Hey hey folks I’m hoping someone can help me out. I paid an electrician to come round and put in a new thermostat (hive) as part of a group of things I had done all at the same time. Only issue is that I can’t get the central heating to come on. When hive tries to switch on the heating.. I hear...

Hello, I have a central heating radiator that heats up nicely from top to bottom but it does not keep its heat. When boiler stops pumping hot water it turns cold very quickly. All other radiators in house are fine. Any ideas what the problem could be? Perhaps rusted up on inside so does not...

Hi, I have an old style back boiler and can't get my ch work. The dial on the thermostat is on maximum but heating comes on only when it's extremely cold. Hot water works ok. I'm thinking the thermostat could get dusty inside as we did some plastering but no changes after I cleaned it. I...

We have an open vented S-plan system with an old (but ultimately quite reliable) Ideal Classic NF50 gas boiler. This is one of those older systems where a small controller is in charge of the two zone valves, the pump and the power to the boiler. When one (or both) valves are open and the pump...

Hi, My flat has an old pumped central heating and gravity hot water system controlled by a Danfoss 103 electric-mechanical timeswitch. [Correction from ianmcd, below: It is not gravity HW. It is an open vent system with pumped HW]. No room thermostat. Hot water and heating cannot be switched...

I'm hoping someone can help. I don't know much about central heating systems. I've just installed a new boiler (Vaillant Ecotec 637) and new hot water cylinder. Previous system was vented whilst the new system is unvented. Problem I have is when the boiler cycles to heat the radiators I hear...

Hello everyone wanted some advice on our Central heating system in our flat we brought 3 years ago...we inherited the system from the previous owners who probably already had it for 4 years... Junkers boiler Ceranorm and thermosta (set to come on 6am-11pm at 21C) Grundfos pump on timer (set to...

I am working from home at the top of the house in a converted attic. As this is the top of the house, I usually bleed the radiator quite often due to air pockets which is fine and the Radiator gets hot. This is a new radiator, but it seems suddenly every 30 mins or so while the heating is on...

I have a heat only Worcester Bosch 30kw boiler and a 300L Ideal unvented cylinder. There are 3 zone valves, one for ground floor heating, another for 1st floor/loft heating and the last is for hot water. There is only one return pipe for the radiators. I had this and completely new pipework done...

Hi everyone, I wonder if you can help. I had a leak recently and this was because the person who installed the combi boiler forgot to connect the waste pipe to the condensate pipe. The company came round and a different guy connected the waste pipe. However, he didn't connect this to the sink...

Hi All Have run into an issue with heating at not the best time of the year. A few nights ago at 2am, a loud grinding/buzzing type sound was coming from the cabinet where the water tank, central heating pump and motorised valve etc are located. This noise eventually went away however the next...

I have a potterton boiler that’s leaking water from under the control panel. Just seems to be a few drops every few days. It seems to be working otherwise. Worried it’s on its last legs. Any ideas? Thanks

i have a SALUS RT500RF hand held controller and a VAILLANT combi-boiler. i recently had to change the batteries in the hand held unit and since then it doesn't actually control the boiler. both red and green lights are on on the receiver unit but even if the flame is showing on the controller...

Looking for help connecting up a Nest E. Only needs two wires Common and ON Going off this. https://electronics.stackexchange.com/questions/470132/wiring-nest-thermostat-e-heatlink-in-place-of-original-thermostat Live (1 Red) is Common and goes to C 3 Yellow would be to ON ??? Thank you for...