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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Plumbing Questions >> One pipe hot water heating system?? https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1101337933 Message started by Victorious1_1 on Nov 24^th, 2004, 11:12pm

Title: One pipe hot water heating system??
Post by Victorious1_1 on Nov 24^th, 2004, 11:12pm

What is the advantage or drawback of a "one pipe" hot water heating system?

It's currently the setup being used in a small two story home, but, I am in the process of changing over to a high efficiency boiler and I 'd like to know how that "one pipe" system will tie in with that new boiler compared to its function with the old innefficient boiler.

Is the "one pipe" setup more or less efficient than large water volume radiator types of systems?

Both new and old boilers have comparable circulating pumps.

Vic

Title: Re: One pipe hot water heating system??
Post by thescruff on Nov 24^th, 2004, 11:55pm

Not suitable for one pipe systems if you read the MFI.

scruff

Title: Re: One pipe hot water heating system??
Post by Victorious1_1 on Nov 25^th, 2004, 12:43am

Scruff, or anyone else, are you able to indicate reasons why it would not be suitable?

Vic

Title: Re: One pipe hot water heating system??
Post by thescruff on Nov 25^th, 2004, 10:47pm

wrote on Nov 25^th, 2004, 12:43am:

Scruff, or anyone else, are you able to indicate reasons why it would not be suitable?

Vic

Name and model of the boiler please, but normally its printed in the manufacturers instuction, installation manual.

Something to do with return temperatures I think.

scruff

Title: Re: One pipe hot water heating system??
Post by Victorious1_1 on Nov 26^th, 2004, 1:16am

Thanks for the reply scruff. Sorry about not posting that important info.

It's an NY Thermal, Legacy L-150.

I've read through the manual thouroughly and it does not say that it can't be used on a one pipe system.

Vic

Title: Re: One pipe hot water heating system??
Post by thescruff on Nov 26^th, 2004, 6:45pm

Forget said earlier the one pipe system is fine.

scruff