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The chimney is connected to an Aga (range) type stove. However, it has been built almost perpendicular and is below the roofline of the house. Sadly, both of these are unchangable. I've been reading about cowls that prevent downdraft but I'm concerned how well these work in reality...does anyone have any experience with these (do they prevent updraft much)?

Are they any other methods of preventing this downdraft? It was not present in light wind conditions but in a recent strong/gale wind, lots of smoke was blown into the kitchen...

Any help/suggestions/etc would be greatly appreciated!

2007-12-10 05:10:23 · 8 answers · asked by Brainsipus 1 in Home & Garden Maintenance & Repairs

8 answers

it sounds like the chimney is within a pressure zone,so you will never be able to prevent down draught.first thing i would try is a longer chimney pot with a cowl on it.

2007-12-10 06:27:58 · answer #1 · answered by Turdy malurdy 6 · 2 0

Its been fine for 2 years and now its not ? Trees take a look outside and you might find a tree that is now creating turbulence from the prevaling wide. a common problem. it might have sublely grown to a size where its now a problem. We see this all the time. They can cause this from 100 feet away. but if its not on your land there is nothing you can do about it. cowls can help, they are only £20 so its worth a try. The other alternative is that the draft is now coming in because of a drafty window or door that wasn't drafty before on the leeward side of he house. Think, do you now leave a door open you never used to, have you started leaving the bathroom window open....that sort of thing

2016-05-22 12:01:52 · answer #2 · answered by carolann 3 · 0 0

There are all sorts of cowls that are available including those that spin in the wind to draw the chimney, there are also electric fans available for the top of your chimney suitable for solid fuel.
There are so many variables and what you really need is a survey carried out to check there is no other underlying problem.

You can contact NACE.........national assosiation of chimney engineers for advice or

the solid fuel assosiation

2007-12-10 06:08:11 · answer #3 · answered by Anonymous · 0 0

The chimney should not be below the roofline of the house, I would get advice on that before you purchase anything, with gas, you would have to be 300mm above the ridge or 1.5 metres off the pitch of the roof, solid fuel is probably different, but I would check it.

2007-12-10 06:35:32 · answer #4 · answered by Anonymous · 0 0

A cowl could cut the smoke problem down. I like the ones which spin in the wind, and some that look like a fat pigeon sat on top of your chimney pot!

2007-12-10 06:05:42 · answer #5 · answered by Anonymous · 0 0

You can buy a cowl that rotates so that the back of the cowl is always facing the wind. Check at a builders merchant about one.They are specially made to stop downdraught.

2007-12-12 10:55:10 · answer #6 · answered by Anonymous · 0 0

any chimney below a ridge line will have a tendency to smoke ..you can buy a rotating cowl or a chimney pot designed to prevent downdraught ..you actually need an updraught

2007-12-10 06:14:46 · answer #7 · answered by boy boy 7 · 0 0

If there is nothing about it in the manufactures instructions, then i would leave it alone.
Down draft diverters do work, but if your aga is not designed to use one. You may have to get the position of the flue terminal looked at.

2007-12-10 06:02:42 · answer #8 · answered by Glenn M 4 · 0 0

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