Bathroom towel radiator - TRV or not?

Refurbishing bathroom, and fitting a new towel radiator. Do we need to fit a TRV? I understood these were not recommended for bathrooms since humidity will make the TRV confused and will turn off when most needed. However I also saw that Trvs are mandatory for building regulations. Is this true?
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  • Dan-Dan
    Dan-Dan Posts: 5,272 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    Dedekind wrote: »
    Refurbishing bathroom, and fitting a new towel radiator. Do we need to fit a TRV? I understood these were not recommended for bathrooms since humidity will make the TRV confused and will turn off when most needed. However I also saw that Trvs are mandatory for building regulations. Is this true?

    I would have one put in if i were you and i havent heard of the humidity thing, ideally a heating system should have a minimum set of controls, normally being a stat and TRV`s
    Never, under any circumstances, take a sleeping pill and a laxative on the same night.
  • Grenage
    Grenage Posts: 3,152 Forumite
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    Personally, I would not. The room temperature is irrelevant if there are wet towels draped over.


    Ours is fed by the hot water feed, so it's on frequently - even in summer.
  • JohnB47
    JohnB47 Posts: 2,660 Forumite
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    At least one rad must be able to stay 'on'. In our system it's the towel rail rad, which doesn't have a TRV.

    If you have a rad without a TRV, I don't imagine there would be an actual problem having a TRV on the towel rad but I wouldn't do it.
  • neilmcl
    neilmcl Posts: 19,460 Forumite
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    TRVs on a towel rad are pointless and not required. The radiator isn't there to heat the room but to simply dry towels.
  • Hasbeen
    Hasbeen Posts: 4,404 Forumite
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    Dedekind wrote: »
    Refurbishing bathroom, and fitting a new towel radiator. Do we need to fit a TRV? I understood these were not recommended for bathrooms since humidity will make the TRV confused and will turn off when most needed. However I also saw that Trvs are mandatory for building regulations. Is this true?

    Perhaps mandatory now in new builds etc.

    But its a towel radiator, so do not put one on.

    Do you have a radiator that does not have a TRV, you need at least one without.
    The world is not ruined by the wickedness of the wicked, but by the weakness of the good. Napoleon
  • Hasbeen
    Hasbeen Posts: 4,404 Forumite
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    Dan-Dan wrote: »
    I would have one put in if i were you and i havent heard of the humidity thing, ideally a heating system should have a minimum set of controls, normally being a stat and TRV`s

    look Here

    https://www.mrcentralheating.co.uk/faq/can-a-trv-be-fitted-to-a-towel-rail
    The world is not ruined by the wickedness of the wicked, but by the weakness of the good. Napoleon
  • ed110220
    ed110220 Posts: 1,534 Forumite
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    The heat output of a towel radiator is minimal, therefore it makes sense to use it as the radiator in the system without a TRV, to keep the wastage of heat to a minimum.
    Solar install June 2022, Bath
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  • Dedekind
    Dedekind Posts: 224 Forumite
    Third Anniversary 100 Posts
    Well what we plan to fit is a radiator which also serves as a towel rail. So we are considering the BTU requirements to heat the full bathroom and so on. Would the same reasoning as above (I.e not necessary to have a TRV and actually advisable to avoid) be applicable?
  • troffasky
    troffasky Posts: 398 Forumite
    Tenth Anniversary 100 Posts Name Dropper
    I think "a radiator that also serves as a towel radiator" is basically just "a radiator". The "towel rail-style radiator" in my bathroom has a TRV on it and works just fine.
  • Dan-Dan
    Dan-Dan Posts: 5,272 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    Hasbeen wrote: »

    Yes, thanks for that, well aware, we have a big bathroom, our bypass rad is in the hallway where the stat is
    Never, under any circumstances, take a sleeping pill and a laxative on the same night.
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