Central Heating radiator pipe centres

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Hi Guys,

Quick question. As part of my restoration, I have the opportunity to place some new vertical pipes thropugh the floor boards to the valves. The original pipes are old and bent and generally knackered. As I don't have the original radiators and will be buying new ones, my question is:

Are pipe centre distances standard on most radiators? I'm not talking about expensive designer radiators, but rather a standard double panel type radiator. I realise that this will depend on the radiator size, but again are there set sizes?

Thanks
 
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As a general rule I go for 43mm on each end of rad length to accommodate pipes... what do other installers go by?


ie 1000mm rad, leave pipe centres at 1086mm
 
I add 45mm to each end but yeah somewhere around there generally works. As for distances off the wall, this varies wildly with the radiator manufacturer so you'll need to get a spec sheet off them (or we can find it if you tell us which brand of rads you are using...)
 
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I add 45mm to each end as centres for pipe and come 8cm off wall for a double rad and 6cm for a single.
 
Well that's interesting, people seem to range between 35 and 50 mm off the end of the radiator. Guess there are either a lot of skew pipes out there or valves vary? :LOL:
 
Valves do vary slightly, most have short slumps of 15 on them and can be slightly adjusted but I found 35 wasnt enough
 
I always use 40mm either side & fits perfect, but I suppose it depends which trv & lockshield you are using....
 
45MM each side When using plumbcentre bulldog valves/pts boss valves/terrier valves.
If the lockshield is a wasp valve then this distance would be less on one side
 

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