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rads

  1. P

    Bleed Valve Keys Won't Fit On Older Rads (Inc. Pictures)

    Just a quick one. I have two different bleed keys (see photo), and neither will fit on the bleed valves of some older rads. I'm not 100 per cent sure, but I think they may fit on the square screw that turns, but it's the circular collar around the screw that's stopping the key sliding over the...
  2. T

    Sizing rads for ground source

    Hiya guys traditional heating systems work at ∆t50, so what do ground source heat pumps work at? ∆t25/∆t30; I need to size radiators for a customer with a heat pump as some of their existing ones are to small Thanks
  3. D

    Rads different temperature

    Some rads get very hot and some get warm .if I screw the lockshield valve in a little on the hottest ones ,will this make the warm ones get hotter ? Thanks
  4. B

    6 of 14 Rads not heating up

    Hi,<br><br>Any advice on the following problem would be gratefully received.<br><br>I have an old house from 1959 and have started to get problems with my radiators. &nbsp;There was one rad that was temperamental but the 'disease' seems to have spread and I now have six of my 14 rads that are...
  5. M

    Cast iron rads

    Any one know the best place to source these? Cheers
  6. J

    Vokera Unica 36HE Boiler coming on and heating Rads when it shouldn't.

    Boiler is a Vokera Unica 36HE, possibly fitted approx 5years ago. Thermostat is a Salus RT500RF, fitted at the same time asthe boiler. The boiler works fine when just on hot water only. The problem is when it is on heating and hot water. On occasions the boiler fires up and starts to heat...
  7. U

    hot rads when the hot water is on

    I have a system boiler, when the hot water only is on, the water in the hot return backs up the radiator return loop heating the radiators. the motorised valve on the tank is working fine, the tank thermostat is working, i replaced the heating motorised valve so that is fine. from cold, when the...
    • Unregistered
    • Thread
    • hot water rads water
    • Replies: 3
    • Forum: Bathroom Advice
  8. A

    Potterton profile, ch works ok. hw works but rads get hot also.

    Going to this job tomorrow. The central heating works ok, goes on on and off when it should. The boiler fires ok when there is a demand for HW but then the rads get hot too. Apparently it's had a brand new three port put in last week but the fault still continues. Programmer? What else...
  9. S

    Two rads + room thermostat - omit TRVs on one, or both?

    Hi Guys - just a quickie! I'm aware that a TRV shouldn't be fitted to a rad in a thermostat-controlled room, but does that apply to all rads, when more than one is fitted in the room - regardless of how they may be proportioned? Cheers
  10. S

    moving into house with electric storage and rads ALL CHANGE!

    Hello all, im moving into a 3 bed semi with electric storage heaters, ripping everything out as Transco or ? are piping gas around the area, there will be a 2 storey side extension and a rear single storey extension added in 12-18 months making it a 4/5 bed with bathroom, shower room, and 2 en...
  11. R

    Trvs on rads in the same room

    Can someone confirm please I'm correct in thinking if you have 2no rads in the same room you only put a trv on one of the rads? If so what's the science behind this and is it also a building reg recommendation ?
  12. F

    Re-piping rads from above - what's a reasonable price?

    Would anyone be so kind as to give a rough range of reasonable cost for re-piping work? First quote seems pricey. (North of England). In a nutshell: Unfindable leak in concrete in downstairs CH circuit. We therefore have five rads that need to be repiped from above. They are all either...
  13. L

    Buying rads online

    Looking for a site which lets you choose the delivery date. Reason being I'm hoping to get them delivered to a relatives (GULP) on the weekend when they're in!! :willy_nilly: Plus I'd be interested in any brand recommendations you guys have, was looking at stelrad and quinn just now. I only...
  14. U

    Are there any Central heating guys who remember rads sold in 80s?

    I'm trying to find the makers of some radiators that I recall from the 1980s. The whole front panel was a grille/ expanded mesh front (one piece of metal, grille cut into it). I think they used less water than the standard rads of the day, and they warmed rooms really quickly. The front grilles...
    • Unregistered
    • Thread
    • central central heating heating rads
    • Replies: 1
    • Forum: Central Heating Forum
  15. D

    Upstairs 8 rads Hot, 8 rads downstairs of which 3 dont get hot.

    Hi, I have a central heating problem, I have 16 rads, 8 upstairs and 8 downstairs 3 of the downstairs ones dont heat up has much as the ones upstairs. We've changed the pump, had powerflush done twice over the last 6 years, i done the last one by hiring a powerflusher, and done each...
  16. J

    Plumbing in Adjacent Rads..

    Grateful for any advice......I have two 600 x 600 rads to go into a kitchen with very restricted wall space - intending to site them only about 1 metre from each other, either side of a breakfast bar. Is it OK to treat them effectively as one unit - i.e. use one TRV on the inlet of the first...
  17. P

    Two rads are cold brand new rads and trvsss

    Hi to all i am a gas engineer having trouble at a job with two radiators that are cold in the Same location of house, I've changed both rads to new with new trvs and lock shield. Thought it was a airlock ,so I attached a house to vent and pushed water nothing!!! Then thought to turn other...
  18. A

    Is it worth scrapping rads

    Hi guys Might have a job in the next week or so removing 6 old rads, I don't scrap anything as it all goes to the yard at work and they deal with it but this would be a private job. Is it worthwhile scrapping rads or just leave out for the scrappies? x1 700 x 1400 x1 700 x 900 x1 600 x...
  19. N

    New Central Heating System - RADS not working

    Central Heating RADs not Heating - New System Hi, I have had a new Boiler Vaillant EcoTect Plus 831 and 8 new radiators installed as part off my building work. Now the system wasn't tested as the building work went on but was getting hot water coming out. Now the hot water works perfectly...
    • NeilPat
    • Thread
    • central central heating heating heating system rads system
    • Replies: 30
    • Forum: Central Heating Forum
  20. S

    Electric combi boiler for underfloor heating and rads - off the grid

    Hi all, I'm new here and trying to get my head around the selection of boilers as none of them seem to have very detailed spec sheets. My property is off the mains gas grid, with no space for LPG or oil tanks. I can't afford biomass or air source pumps which leaves me with an electric...
    • serfer
    • Thread
    • boiler combi combi boiler electric heating rads underfloor underfloor heating
    • Replies: 112
    • Forum: Boiler Advice Forum

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