central heating

Hi everyone, Hope you can help. I have some sludge in a radiator that needs flushed, so I'm trying to remove the radiator. We just moved into the house, and I'm not familiar with this type of valve (H Block I think?) Basically, I'm not sure whether there is a lockshield valve, which I'm...

desperately needing help, I had a new baxi boiler 800 combi fitted last week and its constantly making a whining humming noise, it no sooner stops and it starts again. The plumber came back and drained the radiators but its still the same. my friend and neighbour both have the same boiler and...

Hi everyone, I've set the on/off cycles for both HW and CH differently. Irrespective of the whats shown on the display (Auto, On, Off etc), both CH & HW seem to be always on ie if I open the tap, the water is hot and if I open the TRV, it turns on the radiator. I'm renting an apartment. I...

Hi all, I have a Glow Worm Betacom 24C and a Boss TPSRF31 wireless thermostat and receiver. My issue is this: with the heating switch in the on position on the boiler and the thermostat set well below the ambient temperature (at time of writing ambient is 22 degrees and thermostat set down to...

Hi all, I understand that a CH system requires that at least one radiator have no TRV to prevent the user from closing all valves, and overheating the system, but I have also read on this forum that the radiator lacking a TRV is typically placed near the thermostat...

Hello, Last night when cleaning I took one of the radiators off the wall to dust off the wall behind (downstairs and thermostat controlled) when the pipe coming out of the wall started to shoot out water, I quickly turned the water / boiler off and grabbed a bucket to catch the water until it...

Hi all Unfamiliar boiler and was told over the phone how to top up the pressure, however the boiler in question is a Vokera Compact HE and the taps/valves underneath the boiler are arranged as follows: Yellow (Left), Black screw valve marked 'Vokera Adjustable Stopcock' (Right). Following...

Hi, Looking for some advice please. My current set up is as follows : Conventional gas boiler with a flash immersat timer switch, heats the rads and hot water tank. There is one thermostat in hall which will switch off rads when temperature exceeded. I would like to have a wifi timer switch...

Hi all, I am in the process of updating our heating controls. Looking to install Hive as we had it at a previous house and simply want to utilise the app as we work shift work so do not have set schedules. I am looking to install this myself as I always like to attempt in the first instance...

Have searched the site for solution and couldn't find one for my problem, hopefully someone is able to advise on where I have went wrong. Formerly had potterton EP2002 controller connected to my BAXI system boiler 60/100. (See photo) This also had a thermostat wired in and has a hot water...

Looking at where to place an external boiler, and some guidance on best practice is needed! Very conventional system - heat-only oil boiler, fully pumped, Y plan, indirect cylinder, F&E tank, 7 rads, all in a 2 bed cottage. It's a spring-supplied system, not on mains, so there is only 0.5 bar...

Hi, I’m looking to relocate a shed. Does anyone know what the UK restrictions are as to how close it can be placed to the external flue? It’s one of the types of flues which emits straight out, its a new build. I presume there is a radial distance? thanks.

Afternoon, First post on here but you all seem like a really helpful bunch, hoping to find the problem with my valve. When called for heating there is no movement in the motor, we put in a new one just incase and still nothing. I've measured the voltage across the points powering the motor...

Hi there, I am doing a full renovation on a mid-terrace 3-bed house (inc loft) and single-story rear extension. It will have 1 family bathroom with bath, and 1 ensuite and 9 to 12 rads (inc heated towel rails. Electric underfloor heating in family bathroom and ensuite. I was going to put in a...

Hello all, I’m pretty clueless when it comes to this sort of thing but as we can’t have tradesmen in the house due to shielding I’m hoping someone can give me advice to help diagnose my heating problems. We bought this house less than a year ago and starting to find that there are several...

I am adding radiators to my 2-pipe pumped, vented central heating (UK). The whole piping is copper 22mm and microbore, and I'm extending it with 15mm pex barrier pipe graded for central heating. I know that the first bit of pipes connected to the boiler must be copper, which is the case...

Hi, hope everyone's keeping well. I would appreciate some advice. Our house came with an old FireBird boiler which is well and truly dead. My Dad recently converted to gas (not available in my area) so has a Grant Euroflame 70/90 Boiler sitting unused in his garage. It's only 2-3 years old and...

Hi all, Sorry the title should have said problem not program! My Honeywell ST6400C central heating and hot water programmer has just gone wrong. I took it off the base plate and cleaned out the dust then put it back and pressed reset.Now I can set the date and time and programme in the heating...

Hello, I woke up this morning with the boiler flashing every 0.5 secs after realising the water wasn’t heating up. I have tried leaving the filling loop open and only fills to 3.5 bars. I have bled all my rads and it is now at 1.5 bars but I still have the same issue. No heating or hot water...

Hi all, Drayton ZA5 valve seized the other day during this Corona lock down. Took off the actuator head and sprayed the tap itself with silicon lubricant, but no luck, still too hard to move with pliers. Only thing that freed it was WD40. I am now terrified the WD40 is gonna eat the seals...