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Discuss Outbuilding cold - please help :-) in the Plumbing Forum area at

  1. terry

    terry New Member

    Hi, i have an outbuilding about 25 metres away from the house and I want to install a radiator in there. I didnt want to spend days putting the pipe underground and finding it dont work so I got 50 metres of pipe and attached it to (and back) one of the radiators in the conservatory and then to a radiator in the garden, just to test if it would heat up being that far away from the house.

    It didnt heat up, in fact the pipes from the conservatory barley warmed up after an hour ( the house rads heated up fine)

    Is there a solution to this? Someone suggested fitting an in-line pump next to the radiator in the outbuilding :-/

    Thanks guys, much appreciated
    • Optimistic Optimistic x 1
  2. Gasmk1

    Gasmk1 GSR

    put an electric radiator in
    • Winner Winner x 2
    • Like Like x 1
    • Funny Funny x 1
  3. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Electric oil rad
  4. Nelder

    Nelder New Member

    Extending you CH to the out house isn't the right solution. As mentioned, an electric oil filled radiator would be the best solution.
  5. townfanjon

    townfanjon Trusted Plumber GSR Top Contributor!!

    Yep electric all the way , but depending on what you use the building for will depend on the amount of insulation required
    • Like Like x 1
    • Agree Agree x 1
  6. Rob Foster

    Rob Foster Well-Known Member

    25 m of C.H. water filled pipe in a garden. Is nuts sorry
    • Agree Agree x 1
  7. YorkshireDave

    YorkshireDave Plumber Top Contributor!!

    You can buy specially insulated pipework for this situation but at 25m you'd be an utter fool to do it.

    The pipe outer dia would be approx 300mm, internal pipework of 25-28mm and it'd have to be buried pretty deep.

    Then, the modifications to your htg system, including additional controls, & the huge running losses incurred would take donkeys years (if ever) to recover. It will cost you far less to put in good insulation and run electric heating.
    • Agree Agree x 1
  8. king of pipes

    king of pipes Trusted Plumber GSR

    What is the outbuildings used for please ?
  9. rpm

    rpm Trusted Plumber

    Electric rad with a water mix, Electric Radiators - By Heat Electric, such as these (other makes are available) . All you need is a 13A socket.
    Friend had a no gas cold flat, brought four rads and plugged them in, flat now nice and warm with reasonable running costs, still going good some nine years later.
    • Like Like x 1
    • Agree Agree x 1
  10. bogrodder

    bogrodder Plumber GSR

    If you’re growing plants in there, you could heat the place with lamps on a timer and fans .. just to circulate the heat:D
    • Funny Funny x 4
  11. Rob Foster

    Rob Foster Well-Known Member

    What kind of plants would you grow bogrodder ?
    • Funny Funny x 1
  12. terry

    terry New Member

    Thanks guys - lots of replys all pointing towards the same solution, Im going to go with an electric oil rad. Does anyone have any good recommendations?
  13. bogrodder

    bogrodder Plumber GSR

    Tomato plants of course ..
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