I don’t have a chimney, can I still have a woodburner?
No Chimney? No Problem!
Have you always dreamt of a cozy wood-burning stove, but don’t have a chimney? Or have you always thought it would be too much effort or rigmarol? The good news is, you don’t need one! Thanks to twin wall flue systems, you can still have a wood burner almost anywhere in your home (remembering of course there will always be design considerations and practicalities to think of).
Whether you're looking to add warmth to a new extension, a modern home without a chimney, or even an outbuilding, twin wall flue pipes provide a safe and effective way to vent your stove. Here’s how it works and what you need to know.
I’m Josh and I’m the proud owner of 5 Star Stoves and we are a family run stove install company based in Essex. With a strong eye for detail and a wealth of knowledge, our ethos lies heavily in ensuring we deliver our clients nothing but the best.
What Is a Twin Wall Flue System?
A twin wall flue is a specially designed insulated flue pipe that allows you to safely install a wood-burning stove without needing a traditional brick chimney. It consists of:
An inner stainless steel pipe that carries the smoke and gases outside.
An outer stainless steel pipe, with insulation between the layers to keep the flue warm, improving efficiency and preventing condensation.
Because of this design, twin wall flues can run externally or internally, giving you flexibility on where to place your stove.
How Does a Twin Wall Installation Work?
If your home doesn’t have a chimney, a twin wall flue system can be installed in one of two ways:
Through the Roof – The flue runs vertically from your stove, up through the ceiling, loft space, and roof, exiting above the roofline.
Through the Wall – The flue goes out horizontally through an external wall, then continues up the outside of your home to clear the roofline.
Both options allow for safe venting of smoke while keeping your stove performing efficiently.
Benefits of a Twin Wall Flue
✅ Flexibility – Install your stove in almost any room, not just near an existing chimney.
✅ Efficiency – Insulation helps maintain a strong draw, improving combustion and reducing tar buildup.
✅ Safety – Built to meet strict regulations, ensuring safe operation.
✅ Sleek Design – Available in stainless steel or powder-coated black to match your interior or exterior style.
What to Consider Before Installation
Planning & Regulations
A twin wall flue installation must comply with building regulations (such as UK’s Document J or local codes). You’ll need to ensure proper distances from combustible materials and sufficient height for good draw.
Professional Installation vs. DIY
While some experienced DIYers tackle twin wall flue installations, hiring a HETAS-certified installer will ensure everything is done correctly and safely.
Cost
Installing a twin wall flue without an existing chimney is often more affordable than rebuilding a traditional brick chimney, though costs depend on materials and labor.
Ready to Enjoy the Warmth?
If you’ve been holding back on installing a wood-burning stove because you don’t have a chimney, a twin wall flue system is the perfect solution. With proper planning and installation, you’ll be enjoying the warmth and ambiance of a real fire in no time!
Thinking of installing a wood burner with a twin wall flue? Contact us now for a quote.