central heating hot water feed

[mickcoulson]

hi.... I have taken an old radiator out and put a new one in. now its time to connect the feed and return pipes. I cut the old ones off and blanked them off. Now I am not sure which is which ( stupid ) I would have thought when I put on the central heating the feed pipe would get hot but they both stay cold ( by the way they are still blanked off ) help please
cheers
mickcoulson ( idiot )

 

[Mike the Boilerman]

hi.... I have taken an old radiator out and put a new one in. now its time to connect the feed and return pipes. I cut the old ones off and blanked them off. Now I am not sure which is which ( stupid ) I would have thought when I put on the central heating the feed pipe would get hot but they both stay cold ( by the way they are still blanked off ) help please
cheers
mickcoulson ( idiot )

Mick, it doesn't actually matter. Your new rad will work whichever way around you connect it.

 

[oilhead]

Until you allow some circulation, they will stay cold. Does it matter which way the water flows? Unless you have very old TRV's which are not bi-directional. Even so, if you are replacing and connecting up to the existing tails, how can you go wrong?

 

[ianmcd]

As long as it is not a vertical radiator it wont matter which way round you connect it, if fitting a TRV most modern ones are bi-directional so wont matter