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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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BTU for bathroom
Can anyone give me a quick idea on the BTU requirements for a radiator for a
bathroom - approx 2metres square. insulated ceiling - 1920's walls - double glazed window. Thanks -- -- John |
#2
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BTU for bathroom
John wrote:
Can anyone give me a quick idea on the BTU requirements for a radiator for a bathroom - approx 2metres square. insulated ceiling - 1920's walls - double glazed window. Not without knowing how many walls are "outside" walls, and what rooms adjoin it to the sides and above and below. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#3
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BTU for bathroom
"John Rumm" wrote in message ... John wrote: Can anyone give me a quick idea on the BTU requirements for a radiator for a bathroom - approx 2metres square. insulated ceiling - 1920's walls - double glazed window. Not without knowing how many walls are "outside" walls, and what rooms adjoin it to the sides and above and below. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \= ================================================== ==============/ Two outside walls - two internal stud walls. Bedroom and landing. Thanks |
#4
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BTU for bathroom
John wrote:
"John Rumm" wrote in message ... John wrote: Can anyone give me a quick idea on the BTU requirements for a radiator for a bathroom - approx 2metres square. insulated ceiling - 1920's walls - double glazed window. Not without knowing how many walls are "outside" walls, and what rooms adjoin it to the sides and above and below. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \= ================================================== ==============/ Two outside walls - two internal stud walls. Bedroom and landing. Thanks have a look on the B&Q website - they have a BTU calc on there. |
#5
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BTU for bathroom
"Mike Hibbert" wrote in message ... John wrote: "John Rumm" wrote in message ... John wrote: Can anyone give me a quick idea on the BTU requirements for a radiator for a bathroom - approx 2metres square. insulated ceiling - 1920's walls - double glazed window. Not without knowing how many walls are "outside" walls, and what rooms adjoin it to the sides and above and below. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \= ================================================== ==============/ Two outside walls - two internal stud walls. Bedroom and landing. Thanks have a look on the B&Q website - they have a BTU calc on there. Done it - thanks |
#6
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BTU for bathroom
John wrote:
Can anyone give me a quick idea on the BTU requirements for a radiator for a bathroom - approx 2metres square. insulated ceiling - 1920's walls - double glazed window. Thanks About 500W. |
#7
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BTU for bathroom
In article ,
The Natural Philosopher writes: John wrote: Can anyone give me a quick idea on the BTU requirements for a radiator for a bathroom - approx 2metres square. insulated ceiling - 1920's walls - double glazed window. About 500W. I calculated 875W for a bathroom 1.2m x 2.4m, 9" brick walls (two external), insulated ceiling, small double glazed window, using the Myson calculator. In practice, the Myson calculator seems to have over estimated throughout the whole house (it was a beta version), although that has meant I can run the boiler at only 45C once house has warmed up, making the condensing boiler very efficient, so I'm not complaining. -- Andrew Gabriel |
#8
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BTU for bathroom
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#10
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BTU for bathroom
Andrew Gabriel wrote:
I calculated 875W for a bathroom 1.2m x 2.4m, 9" brick walls (two external), insulated ceiling, small double glazed window, That reminds me... I did a set of calcs for our place prior to doing the loft conversion etc. The existing bathroom came out thus: Surface Air Area Tdelta u-val Loss Change Vol Land wall 4.83 6 1.2 35 0.50 10 office wall 4.6 4 1.2 22 side wall 4.6 25 2.2 253 rear wall 2.83 25 2.2 156 window 2 25 2.9 145 floor 4.2 4 1.5 25 ceiling 4.2 4 1.9 32 Total 668 43 711 So 711W for a simlar sized room - two 10" solid exterior walls, two internal stud walls, kitchen under, loft over. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#11
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BTU for bathroom
John Wrote: Can anyone give me a quick idea on the BTU requirements for a radiator for a bathroom - approx 2metres square. insulated ceiling - 1920's walls - double glazed window. Thanks -- - -- John - Using a "mears" calculator, a 6'6" x 6'6" bathroom, 7'6" ceiling hieght, 2 outside (solid 9")walls, on the first floor, design temp of 72 degrees, gives a BTU requirement of 3200. -- Nick H |
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