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Is it necessary to leave a radiator on?

I live in an apartment with six danfoss radiators and a small boiler box in our closet. Lately we've been having an issue where one of the radiators does not heat up (none of the others have this issue). The super has come by to bleed it a number of times but shortly after the bleeding it goes back to not heating up or only getting hot in half of the pipes. The super told us we need to leave our heat on all of the time however the bill is already quite expensive and even leaving it on doesn't ensure that it will work. Is it necessary to leave it on all of the time? Is there something else that could be wrong as only one of the radiators is not functioning?

Thanks for the help!


  • Ironman
    Ironman Member Posts: 7,387

    Danfoss is the maker of the thermostatic radiator valve (TRV). Have you tried adjusting the valve. If that doesn't change anything, the valve may need the head replaced.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • coldinsoho
    coldinsoho Member Posts: 2
    Radiator Valves

    Thanks for your response! I should have been more specific. We have been instructed to leave the valves (on each radiator) between levels 2-3 instead of 0 when we are not at home. The boiler box remains on all of the time. Does that sound right?
  • Charlie from wmass
    Charlie from wmass Member Posts: 4,331

    It does as the valves are simply high limits. They can not call for heat they just stop it from getting too warm.
    Cost is what you spend , value is what you get.

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