5-Inch Twin Wall Flue

















- Dimensions: Adjustable 450mm-575mm flue length with 45° bend
- 60mm clearance from combustibles for safe installation
- Fully welded and insulated with high-density rockwool
- CE and Hetas approved for domestic heating and hot water systems
- Connects directly to appliance with no adapter required
In Stock





- Connects flexible flue liner to twin wall chimney system
- For use with solid fuel, gas, or oil appliances
- CE and Hetas approved for safe, compliant installation
- Fully insulated with high-density rockwool for efficiency
- Requires only 60mm clearance from combustibles
In Stock





- Insulated adaptor for connecting twin wall flue to flexible flue liner
- Suitable for solid fuel, gas and oil fired systems
- 60mm minimum clearance from combustibles required
- CE and Hetas approved for UK building regulation compliance
- Fully welded, high-density rockwool insulation for heat safety
In Stock


PayPal Credit Example of a £500 purchase
6 Months (over £99)
- Minimum Spend: £99
- Monthly Instalment: £86.87
- Instalment Rate: 14.9% APR
- Cost of Purchase: £500.00
- Total inc. Interest: £520.57
12 Months (over £99)
- Minimum Spend: £99
- Monthly Instalment: £44.89
- Instalment Rate: 14.9% APR
- Cost of Purchase: £500.00
- Total inc. Interest: £538.64
24 Months (over £199)
- Minimum Spend: £199
- Monthly Instalment: £24.00
- Instalment Rate: 14.9% APR
- Cost of Purchase: £500.00
- Total inc. Interest: £575.98
36 Months (over £499)
- Minimum Spend: £499
- Monthly Instalment: £17.09
- Instalment Rate: 14.9% APR
- Cost of Purchase: £500.00
- Total inc. Interest: £614.93
4 Months (over £99)
- Minimum Spend: Over £99
- Monthly Instalment: min monthly payment
- Instalment Rate: 0% APR
- Cost of Purchase: £500.00
- Total inc. Interest: £500.00
Representative Example
Purchase rate: 23.9% p.a. (variable)Representative: 23.9% APR (variable)
Assumed Credit Limit: £1,200
Twin Wall 5-Inch Flue
A 5-inch twin wall flue kit from this range can be used when there is no constructed chimney available. They are often used in period or new build properties without chimneys, as well as in conversions and renovations where the chimney stack has been removed or the stoves desired position is not where the chimney is located.
In this range, you’ll find a choice of 5-inch twin wall flue pipes in black, the perfect versatile colour for completing your set up. On top of this, there are twin wall insulated flue components to suit most requirements in this range, whether it be long, short, or adjustable lengths, or 15-, 30- or 45-degree angled bends.
Frequently Asked Questions
What is the distance to combustible material for a 5" twin wall flue?Every piece of twin wall flue in our collection has been tested rigorously and can be installed within 60mm of non-combustible material. This is a great advantage when fitting a flue system in a loft space or past ceiling joists as it means your system can be positioned relatively close to the timber work.
What is the outside diameter of a 5" twin wall flue pipe?The outside diameter of a 5" twin wall flue system measures 7" (175mm). The inner and outer steel skin of our twin wall flue pipe is packed with high-quality insulation which keeps the flue gases warm for a great draught and also ensures the flue can be installed within 60mm of combustible materials.
Can I install a twin wall flue system myself?Installing a twin wall flue system is a considerable task and may involve equipment like tall ladders or scaffolding if access to your roof is required. Connecting sections of twin wall flue pipe is technically very straightforward and specialist skills are not required, you'll still need to ensure that you follow building regulations for your own safety.
Buy a 5-inch twin wall flue pipe or kit from StovesAreUs today. And make sure to browse our wider range of chimney essentials for flexible flue liners, chimney cowls, and more.