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Radiators under windows.

Sparkingchip
Should electric or central heating radiators be installed under windows?


Andy Betteridge
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  • Former Community Member
    0 Former Community Member
    Typically for design purposes, if you are trying to balance mean radiant temperature and ambient air temperature into a "comfort temperature", then a typical "wet radiator" offering an average surface temperature about 40C above the comfort temperature, then you could take the radiant output of the rad as about 10% of the total sensible heat output - the total radiant output in the space will be higher, but at a lower effective temperature


    They are mostly convective - but contrast that with a big log burner in a big draughty space - reasonably close to the appliance is still cosy, even though the ambient air temperature is lower (back to the ratio of air temperature and mean radiant temperature for comfort again.


    There is a lot of sense in putting the heat source in the "loss place" when it comes to comfort


    Ohhh - and my reference to a woodburner was purely illustrative - I don't own one, would never use one and condemn their use*

    * - Not really,  it's just in case Greta has logged in to collect names for re education in Battery Factory No 3 (aka, The Glorious Revolutionary Cobalt Factory)

    Regards


    OMS
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  • Former Community Member
    0 Former Community Member
    Typically for design purposes, if you are trying to balance mean radiant temperature and ambient air temperature into a "comfort temperature", then a typical "wet radiator" offering an average surface temperature about 40C above the comfort temperature, then you could take the radiant output of the rad as about 10% of the total sensible heat output - the total radiant output in the space will be higher, but at a lower effective temperature


    They are mostly convective - but contrast that with a big log burner in a big draughty space - reasonably close to the appliance is still cosy, even though the ambient air temperature is lower (back to the ratio of air temperature and mean radiant temperature for comfort again.


    There is a lot of sense in putting the heat source in the "loss place" when it comes to comfort


    Ohhh - and my reference to a woodburner was purely illustrative - I don't own one, would never use one and condemn their use*

    * - Not really,  it's just in case Greta has logged in to collect names for re education in Battery Factory No 3 (aka, The Glorious Revolutionary Cobalt Factory)

    Regards


    OMS
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