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radiator output


Yvonne

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[quote]Can anyone tell me how much radiator output(W) we should install per cubic metre of space?? Thanks![/quote]

It do not work like that,you have to know the room sizes.U values of the building,how many outside walls,window sizes, wood or concrete floors and other factors.happy plumbing/heating.
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In the Uk plumbers and builders use a radiator calculator- it looks a bit like a circular slide rule- on which you enter all information ie no. of windows, outside walls, floor type ect. you can then read off the rad. size. you can get these at a plumbers merchants. I presume they have them in france too. But, if you are a complete novice you may be better employing an expert plumber/heating engineer as the last thing you want is for your house to have leaks ect and inefficient heating. 
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There is an online calculator available at http://www.muswell-hill.com/foxandco/pages/calculating_radiator_sizes.htm

This gives both a finger in the air calculation for overall boiler size and a more precise calculator. It is designed for a UK house but would be close for a French house considering the winters here!

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A rough guide is 35 watts M3 for north west France, works OK in 72,  bit more for the east and a bit less for the south. There are maps around with the areas marked, one published some time ago in Maison et Travaux or one of the many heating supplements.

Regards

Peter

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