Single Wall to Twin Wall Increaser Ø 125 - Ø 150
At a Glance
- - Designed for seamless connection between single wall and twin wall systems
- - Constructed with durable 304-grade (outer) and 316-grade (inner) stainless steel, both 0.4mm thick
- - Features compressed rockwool insulation (200kg/m3) for optimal thermal efficiency
- - Tapered design increases diameter by 25mm ensuring a smooth transition
- - Fully HETAS approved and CE marked for safe, compliant installations
- - Suitable for a variety of appliances including wood stoves, gas coal effect fires, oil and gas boilers
Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.
We Won't Be Beaten On Price
At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:
- Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
- Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
- Operational Efficiency: We have streamlined processes to reduce overhead.
Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.
Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com
- Info
- Specs
- Install
- FAQs
The Single Wall to Twin Wall Increaser Ø 125 - Ø 150 is the perfect solution for connecting various appliances to your TWPro Twin Wall Insulated Chimney system. Suitable for use with solid fuel and gas/oil appliances, such as woodstoves, gas coal effect fires, and oil and gas boilers, this increaser ensures a smooth and efficient transition. Constructed with 304-grade stainless steel for the outer skin and 316-grade stainless steel for the inner skin, both 0.4mm thick, this increaser guarantees durability and corrosion resistance.
The insulation is composed of compressed rockwool, achieving a density of 200kg/m3, providing exceptional thermal insulation. Fully welded parts ensure airtight connections, with a necessary clearance of 50mm from combustibles to enhance safety. This product meets rigorous industry standards with HETAS approval and CE marking, adhering to EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20 certifications.
Designed for easy installation, TWPro parts are secured with a locking band, ensuring reliable performance for all your chimney system needs.
SKU: 2-125-002
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 8th. If you need faster stove or fireplace delivery please give us a call. We can often reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.
Warranty & Returns +
All our products come with warranties. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
Price Match Guarantee +
We will match any price like for like. If you find it cheaper within 48 hours, we'll refund the difference.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
The Single Wall to Twin Wall Increaser Ø 125 - Ø 150 is a top-tier product designed for seamless transitions in flue systems. Ensuring both high performance and safety, it's HETAS approved and CE marked. National Flues delivers reliably nationwide and serves both retail and trade customers, rarely beaten on price.
The Single Wall to Twin Wall Increaser Ø 125 - Ø 150 is designed to connect single wall connecting flue pipes or vitreous enamel pipes to twin wall systems, facilitating the transition for optimal performance in flue systems.
National Flues is a premier supplier of fireplaces and flues across the UK, known for reliable delivery, unbeatable prices, and a commitment to quality. Serving both retail and trade customers, National Flues offers secure online payments and a wide range of top-quality products.
