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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Plumbing Questions >> Cold water feed getting hot https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1292759995 Message started by win41 on Dec 19^th, 2010, 11:59am

Title: Cold water feed getting hot
Post by win41 on Dec 19^th, 2010, 11:59am

Hi,

I have noticed that my cold water feed pipe get hot, in fact hot right up to ceiling, is this normal? I have a conventional gravity feed system
Thanks

It is the main cold feed from the expansion tank and is connected into the central heating pump

Title: Re: Cold water feed getting hot
Post by thescruff on Dec 19^th, 2010, 2:07pm

Need more information.

If you mean the cold feed for the heating, it could be normal, but if you mean the cylinder cold feed, you have a back feed.

Title: Re: Cold water feed getting hot
Post by win41 on Dec 19^th, 2010, 7:57pm

Thanks for the reply, it is the main cold water feed from the expansion tank that comes into the top of the central heating pump .

Title: Re: Cold water feed getting hot
Post by thescruff on Dec 20^th, 2010, 3:20pm

Yes that would be normal in most cases, Posting a pic showing the pipe and pump layout would be good.

It should go.

Boiler > vent pipe > cold feed > pump > by-pass > MV.

Title: Re: Cold water feed getting hot
Post by greg on Dec 20^th, 2010, 10:57pm

It is a feed pipe, but also an expansion pipe so as Scruff said, quite normal