DIY Doctor

Main navigation


Postby Martin2 » Sat Oct 20, 2012 2:09 am

I will be replacing the central heating system in a 5 storey Georgian House and the existing boiler flue uses the chimney. When replacing the boiler can I still run the new flue up the chimney. My CH system is located in the basement.
Also I have been tole that I have a commercial gas supply. Can someone advise why this would be the case and therefore should I use a commercial boiler which would provide greater heating capacity.
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Sat Oct 20, 2012 1:54 am


Simply Build It

Postby htg engineer » Sun Oct 28, 2012 6:29 pm

It depends on the load on the gas supply, it may be that you don't need a commercial gas supply now - but has the house been used as anything other than a family home in the past?

The boiler you require depends on the size of the hose, the number of hot water outlets etc etc - a single combi boiler wouldn't be adequate for a house of that size.

Whether or not the flue/chimney can be used, depends on the boiler manufacturer. You be better getting a few companies in to calculate the boiler and radiator sizes they will recommend a suitable boiler.

htg engineer
Rank: Project Manager
Posts: 3256
Joined: Tue May 22, 2007 5:22 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics