to prevent pipes bursting, because of winter < 0ºc?

is it ok to just have hot water  heating on for ~4 hours at minimum temp level at night in the combi boiler or does the heating for the radiators have to be on for ~4hours at minimum temp level?

9 Answers

Relevance
  • 4 weeks ago

    Running the heater WILL NOT HELP.

    If the water lines are inside the insulated portion of the structure, they should never get cold enough to freeze without YOU freezing to death.

    If the lines are outside, that is already a problem.

  • 1 month ago

    Buy a heating cord at any home supply store and wrap it around the pipe. 

  • 1 month ago

    since we know nothing at all about the insulating qualities of the space the piping has to run through, not the house, nor the wind exposure, how can we give a reliable answer?  This is a question for a local professional ... and be wary of him wanting to sell you something [usually expensive] to 'solve' your problem.  I assume that the premises are empty part of the time in winter, otherwise this would not be a problem.  Usually, if you have the heating off for less than 16 hours a day, there won't be a problem as the other eight hours a day will be more than sufficient.  However, this is false if exposure to wind is severe or if insulation is poor.

  • elhigh
    Lv 7
    1 month ago

    So long as none of the rooms or pipes go colder than 0 there's no risk of freezing.

  • How do you think about the answers? You can sign in to vote the answer.
  • Barry
    Lv 6
    1 month ago

    Set the room thermostat on 10 C. The cost will be minimal and you will have peace of mind.

  • Anonymous
    1 month ago

    It rather depends what the climate is like where you are and where your boiler is sited. I rarely run my boilers for heat even in winter and have never had a problem. If you have exposed pipework that is likely to freeze you should lag it. You should have a manual with the boiler. RTFM as they used to say.

  • Anonymous
    1 month ago

    Set the ******* thermostat to 50° F and leave it there. 

  • Sandy
    Lv 7
    1 month ago

    just have hot water running at a trickle through any pipes that are against the outer walls of the house. also cover the pipes with insulation.

  • 1 month ago

    You have to look at where the pipes would be the coldest such as in an outside wall.  It does not matter what temperature the boiler is if the outside wall allows the pipes inside it to freeze up.  

Still have questions? Get your answers by asking now.