Fixed | External Twin Wall Flue System | Single Storey | 4.5m

This high-quality fixed twin wall flue system is designed for external installations on single-storey properties such as bungalows, cabins, and outbuildings. Pre-configured with four bends and a fixed pipe setup, this package ensures safe, certified installation with a professional finish.

Please note: This is a fixed system with pre-defined lengths, ideal for clean, structured installations where adjustment on-site is not required.

✅ What’s Included in This Kit:

1. TWPro MB – Flat Adaptor – Ø 125 (Qty: 1)
Connects your stove outlet to the twin wall system.

• 316L stainless steel inner, 304 outer (black coated)

• Rock wool insulation (25 mm thick)

• HETAS approved and CE marked

• Safe 50 mm clearance from combustibles

2. TWPro MB – Pipe 1000 mm – Ø 125 (Qty: 2)
Full-length 1-metre twin wall flue pipes.

• Effective length ~965 mm per pipe

• Fully welded stainless steel with locking band

• CE certified (EN1856-1), G50 rated

3. TWPro MB – Pipe 500 mm – Ø 125 (Qty: 2)
Half-length fixed pipes for fine height adjustments.

• G50 compliant

• Same material spec and insulation as full-length pipes

4. TWPro MB – Rain Cap – Ø 125 (Qty: 1)
Prevents rainwater entering the flue while maintaining safe exhaust flow.

• Cone-top, corrosion resistant

5. TWPro MB – 45° Bend – Ø 125 (Qty: 3)
Used to create offsets and navigate obstructions.

• Same insulation and construction as main pipes

• Locking bands included

6. TWPro MB – 135° Tee – Ø 125 (Qty: 1)
Allows access for cleaning and connects to base support.

• Ideal for use at the bottom of vertical flue runs

• EN1856-1 certified and G50 rated

7. TWPro MB – Tee Cap – Ø 125 (Qty: 1)
Seals the base of the 135° Tee.

• Includes 10 mm threaded condensate drain outlet

8. TWPro MB – Wall Support 50–80 mm – Ø 125 (Qty: 2)
Secures the flue to the external wall.

• Adjustable standoff between 50–80 mm

• Black finish to match rest of system

9. TWPro MB – Retro Fit Base Support – Ø 125 (Qty: 1)
Anchors the base of the flue to the wall or slab.

• Provides load-bearing support

• Supplied with locking band

🔒 Certified & Trusted

• HETAS Approved & CE Marked

• EN1856‑1 T600 N1 W V2 L50040 G50

• Minimum 50 mm clearance to combustibles

• 25-Year Manufacturer Warranty (2 years on coating)

📦 Perfect For

• Bungalow installations with fixed vertical requirements

• Installations that don’t require on-site pipe length adjustment

• Wood-burning or multi-fuel stoves with a 125 mm outlet

Need installation guidance or have questions? Our expert team is here to help.

Call: 0330 4416157 
📩 Email: info@juststoves.co.uk
📩 Email: info@juststoves.co.uk