Dear All,

I need to install a gas fire (outset balanced flue) where the maximum
specified flue given by the manufacturer is 660mm.The thickness of the
wall necessitates an extension of the flue by a further 200-230mm.What
effect, if any, would this extension have on the function and safety
of the unit?

Any advice would be really appreciated!

All the best,



Edward

wrote:
I need to install a gas fire (outset balanced flue) where the maximum
specified flue given by the manufacturer is 660mm.The thickness of the
wall necessitates an extension of the flue by a further 200-230mm.What
effect, if any, would this extension have on the function and safety
of the unit?

You need to consult the manufacturer's installation instructions
(although it sounds like you already have!) they will very likely
contain info about this; if not contact their technical help line.

I had a similar issue with a boiler I had fitted recently; the
manufacturer provided a special flue extension kit which I bought
separately.

You certainly can't simply add bits on or extend flues willy-nilly.

David

On Sat, 17 Nov 2007 16:46:52 +0000, Lobster wrote:

wrote:
I need to install a gas fire (outset balanced flue) where the maximum
specified flue given by the manufacturer is 660mm.The thickness of the
wall necessitates an extension of the flue by a further 200-230mm.What
effect, if any, would this extension have on the function and safety
of the unit?

You need to consult the manufacturer's installation instructions
(although it sounds like you already have!) they will very likely
contain info about this; if not contact their technical help line.

I had a similar issue with a boiler I had fitted recently; the
manufacturer provided a special flue extension kit which I bought
separately.

You certainly can't simply add bits on or extend flues willy-nilly.

Is this something like a Baxi Brazillia?
I can't remember if there are flue extensions for this model.

Since the model is natural draught there are probably quite severe
limitations on how long the flue can be. You may have to choose a
different model and/or location.



--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
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Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html