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Size of Gas Boiler ?

  • 27-09-2013 8:49am
    #1
    Poulgorm
    Registered Users, Registered Users 2 Posts: 813 ✭✭✭


    My son has bought a detached 3 bedroom house, about 35 years old. Double glazed, about 6 inches of insulation in the attic, probably no insulation in the walls. BER rating D3.

    The house area is modest - at a guess, 1250 sq ft.

    The plumber intends to install a 35,000 BTU gas combi boiler. Is this adequate? Seems a bit small to me.

    What would you recommend ? Thanks, in advance


Comments

  • #2
    corkgsxr
    Registered Users, Registered Users 2 Posts: 3,404 ✭✭✭corkgsxr


    Unless im thinking wrong about house size that seems huge. 24 or 28 would be plenty.


    But he could be going bigger for hw output.

    Over 35kw is nearly commercial outputs


  • #3
    Poulgorm
    Registered Users, Registered Users 2 Posts: 813 ✭✭✭Poulgorm


    Sorry - my fault - I should have said 35,000 BTU - I have edited it now.


  • #4
    scudo2
    Closed Accounts Posts: 2,008 ✭✭✭scudo2


    35,000 = 10.26 kw
    Way to small I'd recommend 26 kw min.

    10kw = small/ tiny granny flat

    Something wrong somewhere !

    I reckon he ment a 35kw boiler, especialy as its a combi . 35 would be right in my humble opinion.



    To convert BTU to KW devide by 3412

    Kw to BTU X 3412


  • #5
    [Deleted User]
    Posts: 0 ✭ [Deleted User]


    Poulgorm wrote: »
    My son has bought a detached 3 bedroom house, about 35 years old. Double glazed, about 6 inches of insulation in the attic, probably no insulation in the walls. BER rating D3.

    The house area is modest - at a guess, 1250 sq ft.

    The plumber intends to install a 35,000 BTU gas combi boiler. Is this adequate? Seems a bit small to me.

    What would you recommend ? Thanks, in advance

    As above, I think you may have made a mistake as i'v never seen a 35,000 BTU combi.


  • #6
    JohnnieK
    Registered Users, Registered Users 2 Posts: 2,526 ✭✭✭JohnnieK


    Your going to need at least a 30kW combi for a house that size. Especially if it has a bath and an ensuite too.

    I put in a 35kW in my own house in May, We use the bath a good bit and it fills it in no time.

    we also have an ensuite. I would have gone for a 30 nut I got the 35 for free:cool:


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