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radiator

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. N

    How to replace old 3/4 Radiator valves with 15mm TRV

    Hi There, I want to swap out my old valves for TRVs but the threads are different sizes, and I'm unsure how to resolve it. My current existing radiator valve setup is: The current valve has a 3/4" thread going to the radiator. I can't quite work out what's on the radiator side, but the...
  2. J

    Radiator Noise/Issue

    Hello everyone! I purchased this steam vent valve: Hoffman Steam Air Vent 40, 1/8" Angle Steam Radiator Air Valve 401440. Installed it and the hissing is much reduced but now, the hissing happens every 10-20 seconds for about two seconds. Its annoying enough to wake me up at night (I wish I...
  3. D

    Thermostatic radiator valve lets water through at 0

    Hi everyone. Apologies - I'm new, but I promise to try and be an active member of the forum :) We're doing some decorating just now and it was suggested that we take off the radiators to make it easier for the plasterer. We decided to have a go ourselves rather than getting someone in for...
  4. M

    Vertical radiator issues

    Hi Just installed a vertical rad from plumbworld with a bi directional TRV which was installed on the return. The Trv seems to not do much so I queried it with plumbworld. They stated the Trv must be on the inlet side regardless of it being bidirectional. Is this correct? What was the point...
  5. D

    Radiator off - Advice needed.

    Hi all, please could anyone help me with the following issue im having. I will start off with listing the scenario in case it helps. Boiler - Ideal Icos. Property - 4 bed System age - around 16 yrs. I have a problem in my en-suite, whereby i am unable to get the towel rail to heat up - this...
  6. A

    Replacing bathroom radiator valves

    Trying to change bathroom radiator valves but I can’t get the old olive/nut off… any advice? Also the small plastic part next to the pipe, will I need to put that back in before fitting new valve? (Complete novice)
  7. M

    Changing radiator and pipework - checking the steps

    Hello I want to replace the old single panel rad in the bedroom with a K2 double panel Stelrad one. I think I'm OK in general and relatively sensible (!) but I just want to check the steps involved to make sure I'm not missing anything before starting. System info- Steps (I think)- 1. Turn...
  8. C

    Radiator upgrade on 10mm pipework

    Looking to upgrade a couple of rads in my house but wanted to get some advice on suitability. I have a glowworm bg330 31 kw conventional boiler which currently feeds 10 type 11 radiators 5 up 5 down. The upstairs is run in 15mm pipework and the downstairs in 10mm. I'm looking to upgrade the 2...
  9. J

    Loose metal particles/ shot in brand new radiator?

    I've just unpacked a new column radiator I bought online to fit it. On moving it around there was a rattling sound so I took a cap off and upended it and poured out a small pile of metal shot. Is this normal? I've fitted radiators before and never noticed this. I can vacuum it out but concerned...
  10. S

    Does this work on leak in actual radiator

    Does this work on a leak in the actual radiator.
  11. B

    Replace Radiator in Kitchen

    Hi, I live in a bungalow and I am refitting my kitchen/diner. The existing radiator needs to be moved to the other end of the kitchen and replaced with a vertical radiator which I have just bought. I can do some DIY plumbing myself, but need some advice. I could reroute the pipes from the...
  12. S

    Radiator replacement - measurement clarification.

    I have removed a radiator and wish to replace using existing pipework and valves. The old radiator itself was 1290mm in width with a total width tail to tail of 1330mm. The pipe to pipe measurement is 1350mm. The height of the old radiator was 430mm however I could go to 500mm with the new...
  13. M

    Additional radiator not warm

    Hi all I’ve got a radiator in our conservatory which appears to have been piggybacked off the plumbing from the living room rad on the floor directly above it. It was like this when we moved in, I know it’s not building regs but oh well. The problem is it’s the only one not getting hot since...
  14. A

    Isolated radiator need pump?

    If a radiator is isolated at the end of a run, like a spur on the system ie the feed doesn't go on to another rad, but is sent back to a rad earlier in the run, is a pump needed to near the rad to push the water through more efficiently at this extreme end? At the moment the rad doesn't get...
  15. R

    Cold Radiator - questions regarding valves

    Hi all, I'm hoping someone here can help. The radiators in my living room aren't heating as well as the radiator in bedroom, hall and bathroom in my flat. I've checked and both seem to be free from trapped air (tried to bleed and water came straight out). Now one radiator gets a lot warmer...
  16. J

    Vaillant EcoTEC Pro 28 - radiator flow temp locked to 50 degrees

    Hello all, I’m looking for some advice on my Vaillant boiler, which is controlled by my Hive thermostat. I have set the radiator flow temperature to 75 degrees on the boiler control panel, but the actual temperature never gets hotter than 50. I have done some checks, and believe I have found...
  17. A

    A reluctant radiator

    The "boiler" in our house is upstairs. When the weather turned cold again, I switched it from hot water only to heating and hot water. After an hour or so, I circled the house looking for issues, and found one. The radiator in the kitchen was not "hot" like the others. I'd seen this before, and...
  18. M

    Advice re radiator valve

    I am a newbie to this forum and need some advice please. My daughter has just bought her first house and naturally Dad has been asked to do some diy jobs. She wants me to remove a radiator (so she can paint behind it) but I am not sure how to close the valve to be able to remove it as I notice...
  19. D

    Vertical radiator instead 2 old

    Hi all, i have removed 2x old radiators in my extension and there i want to put big one 6500/7000 btu vertical aluminium rad, does my 10mm pipe work fine on it ? Also I will need to extend pipe araund 6m one way and same return is this should be enough? or i can just do this 6m with 15mm pipe...
  20. A

    fit tall radiator on 5mm pvc wet wall ?

    i have done a few tests on 5mm pvc wet wall before trying to fit a 1600 bathroom radiator, it's to be fitted on plaster board, there is a panel of sterling board inside the wall. After a few try's to fit the rad fixing the wet wall sink's onto the wall, i have also tryed cutting a circle just...
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