Extending vertical flue

Postby Jhmun » Mon Jul 02, 2012 5:04 pm

Gas condensing boiler has vertical flue through roof and ends 600mm above slates, I want to extend it to 2.5m so it clears newly installed dormer window. There is a 70mm grey plastic pipe inside a 110mm black plastic pipe. Would this be possible?
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Joined: Mon Jul 02, 2012 3:43 pm


Simply Build It

Postby DEEARR22 » Wed Jul 11, 2012 1:52 pm

The overall flue length may be an issue here. You would be advised to check the boiler manufacturers installation manual where the Maximum permitted flue length will be stated. Remember to allow for reductions for bends when measuring the overall length.
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Joined: Wed Jun 06, 2012 12:04 pm

Postby Jhmun » Wed Jul 11, 2012 7:45 pm

will do thank you very much for your help.

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Joined: Mon Jul 02, 2012 3:43 pm

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