✨ Christmas Special: Get 35% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Early Access 6 Inch (150mm) Black Twin Wall Cowl A In Multiple Colors [XNbAgVyF]

$25.99 $83.99 -69%

6 inch Black Twin Wall Cowl ABlack/ Anthracite ColourTwist and lock twin wall flue systems tested to EN1856-1 T600 N1 D V2 L50050 G50. Twin Wall flue is manufactured using 0.5mm 316 grade stainless steel for the inner skin and 0.5mm 904 grade stainle

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Early Access 6 Inch (150mm) Black Twin Wall Cowl A In Multiple Colors [XNbAgVyF]

6 inch Black Twin Wall Cowl A

Black/ Anthracite Colour

Twist and lock twin wall flue systems tested to EN1856-1 T600 N1 D V2 L50050 G50.

Twin Wall flue is manufactured using 0.5mm 316 grade stainless steel for the inner skin and 0.5mm 904 grade stainless steel for the outer skin. The cavity is insulated with 25mm ceramic mineral wool. Twin Wall flue features easy to install twist lock system and parts are secured together by using a Locking Band. It is also weatherproof and fully sealed so is suitable for internal and external applications. Make sure that you keep a distance of 80mm from the outside of the flue to any combustible material (wood, plaster board). Manufacturer offers a 10 year warranty for complete peace of mind on its Twin Wall flue pipe. This covers any defect due to faulty manufacture provided that the system has been correctly specified, installed, used and maintained in accordance with local building regulations. To maintain the warranty on your chimney system, you must have your chimney system swept annually by an approved chimney sweep and a signed record of this needs to be maintained. In the case of solid fuel installations, your chimney system must only be used with fuels approved and specified by either HETAS or the Solid Fuel Association. Any other fuels will invalidate the warranty. Any chimney fire will also invalidate the warranty and it is always advisable to replace the system following a chimney fire.NB Twin Wall Flue diameter is always taken as the inside diameter, there is 1 inch of insulation around the central pipe so the external diameter is 8 inches. Also twin wall flue from different manufacturers may not match other or connect together.

What Our Customers Say

January 25, 2026

Absolutely no complaints!

I am very happy with the very, very, very smart purchase.

- Culhwch Q..

January 25, 2026

Absolutely no complaints!

This is a very clever and a very highly so useful item.

- Urien J..

January 25, 2026

Absolutely no complaints!

This product is a real and a true standout.

- Xylona S..

Write a Review

You Might Also Like

Discover more great products from our collection.

Celerina Queen Bed

Celerina Queen Bed

(395)
$72.99 $233.99 -69%
Johnelle Table Set

Johnelle Table Set

(454)
$60.99 $195.99 -69%
Bank Vault Clock

Bank Vault Clock

(902)
$21.99 $70.99 -69%
Follow Along

Follow Along

(968)
$45.99 $147.99 -69%
Formentera Necklace

Formentera Necklace

(881)
$64.99 $207.99 -69%

Copyright 2026 © mappa-mercia.org

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY