45 degree wall sleeve (for when going through wall)

Slide through the wall and cut to length as required. Add mortar around outside of it or Rockwool insulation. Make sure it is Rockwool (some other brands not fireproof).

Diameter of 5" sleeve: 9"

Diameter of 6" sleeve: 10"

Stove Fitter's Warehouse offers a full Twin Wall Design Service with all designs prepared within our Twin Wall Design Studio. Contact us for further details (info@stovefitterswarehouse.co.uk).


Duraflue Twin Wall was launched to the market during 2014 and, due to its high quality and innovative design, is already a favourite amongst professional stove fitters.

Colour & Internal Diameter
Silver 5"
Silver 6"

Customer Reviews

Based on 137 reviews
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M
M.
Good product, but...

I've used this type of flashing before on plastic pipe. I do like the product but the instructions aren't great. There is a fitting video on their website which helps. Make sure you cut the hole smaller and give it a test. If you go by the numbers on the collar you may cut it larger than required. I'm sure mine will be water tight but I'll keep a close eye on it. Cheaper and easier to fit and seal than the lead and storm collar combination though.

R
R.N.
Stovefitters- second to none!!

Stovefitters warehouse have been brilliant!
We sent Julian some simple drawings and measurements and he designed us the perfect systems for two wood burning stoves, complete with list of parts and a computer produced diagram of the finished article. They then put the order together which we received promptly and we’ll packaged. Great British made quality too! The twin wall Duraflue is very nicely made with very clean lines and is very simple to install.
We changed our mind a couple of times but nothing was too much trouble.
Julian and Arran dealt with our issues promptly and very professionally. Their knowledge about stoves and flues is second to none!
We are extremely pleased with the goods and service we received. We would not hesitate in recommending them to family and friends. They work very hard and customer satisfaction seems very high on their list of priorities.
All now installed the stoves look and perform great! Thank you to all Stovefitters Warehouse!

Sent from my iPhone

M
M.W.
Quality product, great advice and delivered quickly

I ordered a few different twin-wall components for my installation after speaking with one of the guys at The Stove Fitter's Warehouse for advice. After a run through of my installation queries over the phone, I received great advice and help with my order.

c
c.h.
Full package

Ordered full package from Julian and his team at Stovefitter. Customer service was second to none and communication was excellent. Also the quality and packaging of goods were second to none. His Stovefitter manual, gave me the confidence to install myself and my whole family are really pleased with the result. Once again thanks all.

Craig

S
S.R.
Twin Wall

Julian was very helpful
Flue and ducting also very good making contact and arranging for delivery again the delivery driver was very good .
The whole purpose and fitting was ok apart from the wall sleeve which is a difficult part of the installation