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Twin wall: Base support unit adjustable with brackets (7-16cm from wall to pipe)

Materials always in stock (4 UK-wide depots). This is a twin wall clip-together chimney part used to build a new chimney. Twin wall clip-together chimney can be as close as 5-7cm to combustible materials (so is also useful for adding atop a stove to bypass a wooden beam).

Stove Fitter's Warehouse offers a full Twin Wall Design Service with all designs prepared within our Twin Wall Design Studio:

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.


Base support units can also be fitted "upside down". This is useful when you want the main body of the unit above your "hole through the wall" and out of the way of any cosmetic plate (if used).

Top tip: No fire cement or glue of any kind is used when connecting twin wall pipe to twin wall pipe - it is just push-fit (with a locking band for added security). When to use fire cement on flue joints? Use the SEARCH function and type "sealing flue joints".
Colour & Internal Diameter
Silver 5"
Silver 6"
Black 5"
Black 6"

Customer Reviews

Based on 148 reviews
stove fitting made easy

I'd always wanted to fit a stove to my conservatory to make it useful all year round. But the cost of having one fitted put me off. I thought about doing it myself, however was nervous especially about cutting a hole in my roof and getting it right. Following a few calls to stovefitters they were patient and brilliant witl lots of advice and design guidance specific to my house and layout. The goods arrived very quickly and are well made. My son and I fitted the stove and chimney and all is well with a lovely stove supplied by stovefitters and fitted by yours truly.

Stove installation

Converted a garage barn into luxury accommodation for a client & used the web site & really helpful advice from the guys to plan & then buy & install the stove pipe up through the room & through the roof.
Website really informative, guys really helpful. Won’t look anywhere else I for future products. Il just use Stovefitters