radiators

Radiators are heat exchangers used to transfer thermal energy from one medium to another for the purpose of cooling and heating. The majority of radiators are constructed to function in cars, buildings, and electronics.A radiator is always a source of heat to its environment, although this may be for either the purpose of heating this environment, or for cooling the fluid or coolant supplied to it, as for automotive engine cooling and HVAC dry cooling towers. Despite the name, most radiators transfer the bulk of their heat via convection instead of thermal radiation.

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  1. A

    Advice on flow to radiators after new boiler

    Hi All, I am looking for a bit of advice. I am not a plumber, just a DIYer who has been doing his own plumbing for more than 40 years. I understand how central heating works with flow and return but have a bit of a potential issue which I want to discuss. Bit of background first. I had a...
  2. G

    Boiler with no radiators

    Hi, Is it ok, after draining the system and removing all but one radiator to turn on the combi boiler, in order to get hot water, until new radiators are installed? I've left the pressure at 0 so haven't filled up the system and have put capnuts on each TRV side just in case. (Couldn't get...
  3. P

    BTU's at delta T65 and T50

    Hi Guys, Need some help. I have calculated online the BTUs for the rads (calculator used T65) then when purchasing I was looking at the T65 radiator calculations..... But I have since noticed, Europe uses T50 as standard. What calculation would I use to convert the T65 BTU needed to the new T50...
  4. J

    Barco Radiators - Bunkrupt

    Just heard Barco radiators went bust. Wolseley said that all their stocked items (inc. special orders like designer rads) were zeroed off their system and they weren't allowed to sell them. Just so you know. J
  5. D

    Two out of three radiators not heating up

    Hello — if anyone's got any ideas on this one, I'd be hugely grateful! Here are the details... I live in a small one-bed flat (on one level). Last year I had the water tanks and immersion boiler removed and replaced with a Vaillant EcoFIT combi boiler. The fitters rerouted the pipework as...
  6. B

    Radiator TRV 15mm but radiators 22mm??

    hello, not a problem I’ve thought about before, but having an achp fitted so I need the maximum flow and return volume. However I find I can’t get 22mm TRV/ emitter valves only the standard 15mm. This seems bizarre due to the standard emitter Inlet/ outlet bore size. Will this cause much of a...
  7. D

    Radiators boiling but no hot water from taps

    We have a coal fired Parkray room heater, running 6 radiators. They are all red hot but there's no hot water from the tap. What should I do? I'm quite nervous about the back boiler blowing up.
    • Deleted member 108976
    • Thread
    • boiling hot hot water no hot water oil radiator radiators tap taps water
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  8. E

    Stelrad Compact Radiators vs Stelrad Softlines

    Hello, can anyone tell me if there is a difference between Stelrad Softlines and Stelrad Compact radiators - if there is a difference what is it. I am thinking of getting some for my house and am wondering which to buy.
  9. S

    Advice needed! Heat to radiators even with heating off

    I really would appreciate some advise please.. If our boiler is on then our radiators are on, even with the thermostat off. The separate control panel which controls heating and water is off too. This is an ongoing issue..... We called out a heating engineer previously, and he replaced a valve...
  10. O

    'Radiatoroutlet.co.uk' column radiators?

    Has any of you had experience of 'radiatoroutlets.co.uk' column radiators? The advertised output BTU are impressively high. I asked them and they said they are rated at T50 which sounds better again. It would be good to get some independent reviews/experiences?
  11. B

    Radiators hot at one end and cold at the other.

    Hello. I need a bit of advice please about getting heat through to 2 radiators. All the others are piping hot but these 2, in adjacent rooms (bedroom & en-suite) are piping hot right the way up at one end and stone cold at the top at the other end. There's a hot band for the bottom third of the...
  12. O

    Good Value Column Radiators - (milano windsor range ) Help

    Hi, we are currently trying to source radiators for a new build. We have found the Milano Windsor range on the best heating website. They seem to be about the only column rads in our budget range. Has anyone any experience of them?. We are a bit concerned about buying online. There is a...
  13. Nicola84

    Radiators smell when on

    Strange question but when my radiators come on I can smell a sort of burning dust smell, I've cleaned behind them however I can still smell it a few weeks on, is this normal?( I know when the heating as come on as I can smell the hot metal)
  14. D

    3 radiators on 15mm branch?

    I was wondering whether it would be a good idea to replace some 15mm pipe with 22mm. I currently have 3 radiators on a single 15mm branch. Small, medium and large, approx 10,000BTU's at 50C in total. The room with the large radiator is always cold in the Winter, partly due to insulation but...
  15. T

    Radiators upstairs in dormer bungalow - Gravity system

    Gravity system. 2 rads and 1 towel rail. Base of F&E tank to top of towel rail approx 300-400mm Base of F&E tank to top of rads approx 800mm All stone cold when heating is on, although the customer tells me that after the heating has been on for about 3 hours they do start to feel warm. I...
  16. I

    TBOE radiators in new build incorrectly piped

    Hi everyone, I am seeking some advice. We moved in last year to a new build flat which has 6 TBOE radiators with TRV's at the top. The new build flat uses a heat exchange unit as it is connected to district heating system. All pipework is behind the plasterboards and run up in the ceiling. I...
  17. P

    Ufh problems temp control and radiators temp

    Hi guys Our recently installed UFH system is causing us trouble and we are struggling to get the fitter to help, problem one is we have to slowly build up the heat as the new floor is tiled but the only way to do this is by turning the boiler heating controls down as low as it goes, 30 degrees...
  18. D

    Emmeti manifold to new radiators.

    Hi I'm I've just joined and hope to gain some well needed knowledge! I'm replacing the old 1 pipe heating system in my house as its very old and full of leaks! We're putting down a solid wood floor so I don't want any joints under it that might fail! I'm thinking of using the Emmeti manifold...
  19. C

    Radiators Question - Should I Change Them?

    Hi, I had a new boiler (Baxi Duotec) installed with radiators a while ago. One room stays fairly warm and that has one of the original rads in it. All the others were replaced and the other rooms seem to not stay so warm. I said at that the time, this seems to keep the heat for longer and he...

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