Guide · Flues
Can you have a wood burning stove with no chimney?
Yes. Where there is no chimney, we fit a twin-wall insulated flue, either internally up through the ceilings and roof, or up an external wall and above the roofline. It gives the stove a safe, correctly sized and well-insulated route for the smoke, with a strong draw, so plenty of homes with no chimney at all run a woodburner happily.
Updated 7 July 2026
What a twin-wall flue is
Twin-wall is insulated flue pipe made for homes without a masonry chimney. It has two skins of stainless steel with insulation between them, which keeps the gases warm so they rise and draw cleanly, while the outside stays cool enough to pass safely through floors, ceilings and walls.
Internal or external route
An internal route runs up inside the house, through the ceilings and out through the roof. It keeps the flue warm, which helps the draw, and it can be boxed in neatly. An external route goes out through the wall behind the stove and up the outside of the house above the roofline, which keeps the work out of your rooms.
Which is better depends on the layout of your home, and we work out the best route on the survey.
What it involves
Every twin-wall system is designed for the property, taking in the construction of the house, the position of the stove, the room layout and the height of the building. We specify all the components, from the firestops and brackets to the cowl at the top, so the finished system is safe, compliant and performs well for years.
Common questions
Is an internal or external flue better?
Both work well. An internal flue stays warmer, which helps the draw, and boxes in neatly. An external flue keeps the work out of your rooms. We recommend the best route for your home on the survey.
Does a twin-wall flue look unattractive?
The parts we install are finished in a durable black powder coating for a clean, modern look, and the run is planned to be as tidy and unobtrusive as possible, inside or out.
Does fitting a flue from scratch cost more than lining a chimney?
Often, yes, because there is more material and labour involved. A twin-wall installation typically starts from around £3,500, but the exact figure comes from the home survey.
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