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Radiators: on internal walls or external?

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  • 14-12-2012 10:25am
    #1
    JuliusCaesar
    Registered Users Posts: 4,882 ✭✭✭


    I'm thinking of moving some radiators around especially as I have long floor-length curtains. So someone was saying I should move them to internal walls, as this'll help heat the house better. What's the consensus on this? thanks
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    #2
    corkgsxr
    Registered Users Posts: 3,404 ✭✭✭corkgsxr


    external walls your heating the coldest side of the room first.

    but if you cover the rads with curtains your not leaving the heat to the room.

    up to you, alot cheaper to get shorter curtains


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    #3
    JuliusCaesar
    Registered Users Posts: 4,882 ✭✭✭JuliusCaesar


    Thanks, yes, but aesthetics count too! I thought if I move the bedroom radiator to the internal wall, it might somehow help heat the stairwell, which is always cold at the top. The heat from the hall radiator doesn't rise, but stays in the hall. I'd like to have a low even heat throughout the house, and light the stove in the living room where we spend most of the evening. Hope this makes sense.


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    #4
    corkgsxr
    Registered Users Posts: 3,404 ✭✭✭corkgsxr


    if your ripping up floors to move rads you can add more no problem. stick one at the top of the stairs


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    #5
    Billy Bunting
    Registered Users Posts: 2,842 ✭✭✭Billy Bunting


    All heat rises. Any heat loss through walls from a rad fitted on internal walls will loose its heat into the house unlike rads on external walls that will obviously loose it to the outside, i prefer them on internal wall.


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    #6
    Dardania
    Registered Users Posts: 3,612 ✭✭✭Dardania


    I belive they should be on the external walls, precisely because that's where your heat loss is, so that you don't have an extreme difference between a hot inner and a cold outer part of the room...


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    #7
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    Dardania wrote: »
    I belive they should be on the external walls, precisely because that's where your heat loss is, so that you don't have an extreme difference between a hot inner and a cold outer part of the room...
    Is putting that silver heat reflective stuff behind rads any good? Never used it but heard it makes a big difference


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    #8
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Rads always work best under windows. The reason is because radiators give limited radiated heated but more connected heat. As the heat rises, the cooler air from the window rushes underneath the warm air to replace it, giving the heated air velocity to travel across the room at high level and return back at mid level, reflected from the opposite wall.
    The will, of course, work on internal walls but not as well.

    As for reflective sheets behind the rad, waste of time & money IMHO.


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    #9
    Billy Bunting
    Registered Users Posts: 2,842 ✭✭✭Billy Bunting


    These days with cavity wall insulation and the fact that most Ladies would insist on "aesthetics" first and will not have short curtains or tuck them in above the rad leads me to the opinion that rads on internal walls will do the job as there is no obstruction to the convected heat but not so with rads tucked behind a curtain heating the outside.


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    #10
    corkgsxr
    Registered Users Posts: 3,404 ✭✭✭corkgsxr


    Dtp79 wrote: »
    Is putting that silver heat reflective stuff behind rads any good? Never used it but heard it makes a big difference

    Pointless the walls need bit of heat too.


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    #11
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    corkgsxr wrote: »

    Pointless the walls need bit of heat too.
    For what?


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    #12
    paddy147
    Banned (with Prison Access) Posts: 15,858 ✭✭✭✭paddy147


    50-80mm Insulated slab on the external walls and then mount the rads below the windows.


    Thats what I did.

    Simples


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    #13
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    paddy147 wrote: »
    50-80mm Insulated slab on the external walls and then mount the rads below the windows.


    Thats what I did.

    Simples
    Expensive I'd say


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    #14
    paddy147
    Banned (with Prison Access) Posts: 15,858 ✭✭✭✭paddy147


    Dtp79 wrote: »
    Expensive I'd say


    I had the entire house slabbed out and insulated the fcuk out of it.

    Stripped back to 4 bare walls and had the roof removed too.Energy effiecent windows installed,New roof installed and spray foamed aswell.New heating system and solar system too.Installed a Stovax 8kw multi fuel inset stove aswell.


    Short term pain for long term gain.

    The house is now beautifully warm,as a result.:)


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    #15
    paddy147
    Banned (with Prison Access) Posts: 15,858 ✭✭✭✭paddy147


    Dtp79 wrote: »
    Expensive I'd say


    Even if you slab out the external walls you will notice a big difference.

    And its around 25-30 euro for an 8 x 4 insulated slab.


    ..short term pain for long term gain....:)


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    #16
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    paddy147 wrote: »


    I had the entire house slabbed out and insulated the fcuk out of it.

    Stripped back to 4 bare walls and had the roof removed too.New roof installed and spray foamed aswell.


    Short term pain for long term gain.

    The house is now beautifully warm,as a result.:)
    Misread your first post. Thought u had said u had external slabs.


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    #17
    paddy147
    Banned (with Prison Access) Posts: 15,858 ✭✭✭✭paddy147


    Dtp79 wrote: »
    Misread your first post. Thought u had said u had external slabs.


    What I mean is the external walls of the house (walls with windows)...if you slab them out internally with insulated slab,then you will notice a difference in the heat retention of the rooms in the house.


    You lose a very small amount of floor space,but you gain a warmer cosier house.


    I went the whole hog and insulated the entire house from the ground up.

    The ceilings are even insulated with insulated slab and then rockwoool sound insulation too.


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    #18
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    paddy147 wrote: »


    What I mean is the external walls of the house (walls with windows)...if you slab them out internally with insulated slab,then you will notice a difference in the heat retention of the rooms in the house.


    You lose a very small amount of floor space,but you gain a warmer cosier house.


    I went the whole hog and insulated the entire house from the ground up.

    The ceilings are even insulated with insulated slab and then rockwoool sound insulation too.
    Ah Ye understand now alright. Seen it done a good few times. Good job


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    #19
    paddy147
    Banned (with Prison Access) Posts: 15,858 ✭✭✭✭paddy147


    Dtp79 wrote: »
    Ah Ye understand now alright. Seen it done a good few times. Good job


    Had to move out of the house when all the work was being done..but so well worth it in the end.:)


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    #20
    Billy Bunting
    Registered Users Posts: 2,842 ✭✭✭Billy Bunting


    any pics ;)


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    #21
    paddy147
    Banned (with Prison Access) Posts: 15,858 ✭✭✭✭paddy147


    Billy Bunting wrote: »
    any pics ;)


    :D




    Oh about 500 pics or so...and Im really not joking here either.:)


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    #22
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    paddy147 wrote: »


    Had to move out of the house when all the work was being done..but so well worth it in the end.:)
    Plumber colleague of mine built his own house. Didn't want rad pipes coming out of the ground exposed. As he was doing the same as you with the slab he decided to clip the acorn pipe to the wall in first fix and when slabbed he was gonna bring out copper to rad on the horizontal. Months passed and when he went to second fix, acorn had changed their fittings to the big stupid white yokes on the market. There much bigger than the old ones so at all his rads he had to cut the block wall behind the fitting to sink it deeper. Not a fan of those new fittings


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    #23
    Billy Bunting
    Registered Users Posts: 2,842 ✭✭✭Billy Bunting


    Regular Qualpex piping can be used with standard compression fittings.


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    #24
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    Billy Bunting wrote: »
    Regular Qualpex piping can be used with standard compression fittings.
    Of course. He had bought the fittings. Was willing to give them a chance. Don't think he will again. Me myself am not a fan either. I miss the old fittings!


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    #25
    paddy147
    Banned (with Prison Access) Posts: 15,858 ✭✭✭✭paddy147


    Billy Bunting wrote: »
    any pics ;)


    1,2,3,4 and 5 of 500 or so.;)


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    #26
    Billy Bunting
    Registered Users Posts: 2,842 ✭✭✭Billy Bunting


    I just knew you couldnt resist!

    Fart in your house and you'd need to take ya cloths off. :D


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    #27
    paddy147
    Banned (with Prison Access) Posts: 15,858 ✭✭✭✭paddy147


    Billy Bunting wrote: »
    I just knew you couldnt resist!


    bait hook line sinker........:pac::D


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    #28
    dfbemt
    Registered Users Posts: 1,398 ✭✭✭dfbemt


    Billy Bunting wrote: »
    any pics ;)
    paddy147 wrote: »
    :D
    Oh about 500 pics or so...and Im really not joking here either.:)

    Please don't get him started with the pics.

    We've seen all 500 of them. At least a million times at this stage.

    We've even had pics of his missus legs, uninsulated !!!! ;)


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    #29
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    dfbemt wrote: »
    We've even had pics of his missus legs, uninsulated !!!! ;)

    Too much information! Could well be the wrong forum for that kinda exchange! Lol


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    #30
    paddy147
    Banned (with Prison Access) Posts: 15,858 ✭✭✭✭paddy147


    dfbemt wrote: »
    We've even had pics of his missus legs, uninsulated !!!! ;)


    Where??????

    Do please show me where I posted it then.....I would be very interested to see this particular pic,seen as I have never posted a pic like that here on any of the forums..


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    #31
    CarrickMcJoe
    Registered Users Posts: 3,379 ✭✭✭CarrickMcJoe


    Paddy, pass no remarks, those lovely pins were well insulated up on the steps havin great craic painting the ceiling, proper gent you are :D


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