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rads

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  1. D

    Worcester Bosch 32CDI . lots of air in Rads but no drop in pressure? please help

    Hi, i hope you can shed some light on this , Combi Boiler is located in the loft and was installed March 2020 on existing pipe work/ radiators , i topped up (2) radiators up stairs in October 20 it took a lot of water! Boiler pressure is set to 1.5 bar (cold resting) and never drops. But found...
  2. S

    Ufh or rads upstairs?

    Hi there, ufh is being installed on the ground floor of a new build highly insulated dormer house, 120m2 on ground floor plus 90m2 on first floor. The design flow temp will be 40 deg C and I'm thinking of using radiators sized for 40C on the first floor, Should I consider underfloor heating...
  3. L

    Rads not heating

    Hello guys, I looked at heating system yesterday. A large 2 story house with 2 story extension at back. The rads to extension never worked. Its a 90,000 btu oil fired boiler. Pipes from boiler are 22mm (should be 28mm) coming from shad near house. From what I can see I think flow and return...
  4. B

    Dual fuel towel rads in zone 2

    Evening all, not sure if I should be asking sparkies ? I have a qualified and experienced gas fitter installing a new system in a small rural cottage. I am having a friendly discussion about the location of heated towel rad. You open the door to the bathroom and to one side is the...
  5. T

    Max UFH Temp = Lukewarm Rads?

    Hi, Not long in a new build house and getting to grips with the heating and everything else. We've a Nibe F4020 heat pump, UFH for downstairs heating and rads/towel rails for upstairs. The upstairs is on a single zone with a thermostat on the landing (makes no sense to me, but whatever.) The...
  6. H

    Pipe extensions for new rads

    I am replacing two radiators. The new radiators will be larger and I will need to change the pipework. The existing 8mm microbore comes out horizontally from block walls (the floors are solid). I will need to extend at least one pipe to accomodate the new rad. Basically my question is what...
  7. B

    Where can I get two rads like this? Unusual size!

    Hi All, I need to replace two radiators in on of my rooms. The size does not seem to be available from normal suppliers. I think it is an imperial size 32 wide by 16" high. I need to replace as they are not in great condition around the threads. You might see the corrosion in the image I will...
  8. F

    Downstairs rads taking ages to heat

    Hi there I’m brand new to this forum and really need some help. my downstairs radiators can take an age to heat up. Sometimes they just don’t heat up at all. Other times they do heat up and all is good. Until I turn the heating down at night and the issues begins again the next morning. A...
  9. T

    Rad not heating up upstairs. 16 rads

    A rad was moved to the other corner of the spare room with plastic 1/2 inch pipes and lagging. It hasn't heated up since. There is 16 rads on this system and every rad on this system heats up apart from this rad. I've tried to balance it all out however still nothing! I've even turned off...
  10. W

    How long after plastering before you hang rads?

    I knew this before but it's been ages and can't remember now. Cheers
  11. B

    Vaillant EcoTec 630 - will only partially fire and won't heads the rads

    Morning all, I'm new and shiny here and seem to have developed a heating problem this morning. Any pointers for a quick resolution would be appreciated as my ears are now hurting! :rolleyes: I have a Vaillant Ecotec Plus 630 driving rads, hot water and underfloor heating in some of the house...
  12. T

    Installing rads for GSHP

    Hi there! Recently moved in to a new property in Sweden, previously heated with fires and electric rads. Have contracted someone to install a Ground Source Heat Pump, but will undertake the installation of rads myself. The property is around 120sqm over two floors, and I will be setting in 11...
  13. NODDYNODSVILLE

    2 Cold rads on a system with 8 hot rads

    Evening all. I have open vented C/H system with a heat only boiler and 10 rads over 3 floors. I have just replaced a rad on the middle floor. Drained system down for new gateway valve for cold feed for header tank. Refilled system no leaks, 👍, but the top top 2 rads won’t get hot. ALL rads...
  14. NODDYNODSVILLE

    Cold Rads on a system with hot rads

    Evening all. I have open vented C/H system with a heat only boiler and 10 rads over 3 floors. I have just replaced a rad on the middle floor. Drained system down for new gateway valve for cold feed for header tank. Refilled system no leaks, 👍, but the top top 2 rads won’t get hot. ALL rads...
  15. F

    Two rads do not heat

    Two radiators in extension do not get hot. Been flushed through bled etc. Rads balanced in house. They get hot when all other rads off but not roasting to the touch, the minute you turn on any other rads, they go coolish again. Could boiler not be strong enough? If so, would changing all...
  16. S

    2 Rads not heating up

    I have 2 downstairs radiators not heating up. The system was recently power flushed, the plumber highlighted a flow issue, I have removed the radiator and flushed it, after refitting still no flow until I turned off all other radiators in the house then they both warmed up great I thought. As...
  17. Rogerf

    Hot rads upstairs cold down

    Customer has an ideal logic 35 with heating working upstairs and no heating downstairs, have tried shutting all rads upstairs but rads downstairs still cold, I did find some stuck trvs but still no difference once released, I’m thinking system is sludges up. any other opinions
  18. H

    Which towel rads don't leak when run off softened hw circuit?

    Hi, hope someone can help me find a solution to this problem please. I have 3 wet, stainless steel, ladder towel rads fed from pressurised ch/hw system including ufh throughout(no other rads). House was built 2 years ago. We had a tablet salt water softener fitted 3 months after moving in...
  19. S

    Finding quality TRVs for Cast Iron Rads

    Have 16 cast iron rads in an old cottage and have been suffering for several years with brass TRVs I bought from a period house store. They look great but have been totally unreliable and around 6-8 have either failed or leaked or both. I'm looking for something to replace them that matches the...
  20. MaksimsK

    Rads need constant bleeding

    Hi. After the boiler swap in mid december (Ideal logic Max combi c30), we started having this problem with rads. Usual symptoms: colder top rad, I can hear water flowing in pipes and rads. Usually need bleeding every 1-2 weeks since then. Pressure was on same level even after bleeding, but not...
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