👀 7 people are viewing this product
× National Flues
Free Delivery on Orders £100+
100% 5* reviewed on Trustpilot
Free stove flue design service
Delivery to mainland UK
Call for help on 01670 206999

Reducer - Ø 800 (3-700-008)

Discover National Flues' Reducer - Ø 800, a top-tier flue system reducer engineered for both commercial and industrial applications. This high-quality, modular stainless steel adapter seamlessly integrates with your SWPro system, ensuring optimal performance and safety for boilers, ovens, and ventilation systems. Enhance your installation with our reliable, certified flue adaptor made from premium materials.
Now only £913.99
including free delivery Give us a call if you find it cheaper and we'll normally price match.

 

Payment Options

At a Glance

  • High-grade 316L Stainless Steel construction for durability
  • High-pressure sealing gasket (P1/H1) ensures a secure connection
  • Certified to CE and EN 1856-1 standards for safety and quality
  • Easy push-fit jointing system with an integrated Locking Band
  • Suitable for high & low-temperature, non-condensing & condensing flue applications
  • Versatile use in boilers, ovens, ventilation systems, and chimney shaft liners
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, August 14th. This is based on current lead times for this product. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. We can sometimes 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

Best Price Match Guarantee +

We will match any price, like-for-like, on a retail basis. Give us a call if you find it cheaper and want to buy from us.

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: [email protected]

The Reducer - Ø 800 is an essential component in the SWPro modular single wall flue system. Crafted from high-grade 316L stainless steel, it is designed to seamlessly reduce the diameter of your flue system, ensuring optimal functionality. This reducer is fitted with a high-pressure sealing gasket (P1/H1), making it suitable for a variety of applications including boilers, ovens, ventilation systems, and chimney shaft liners.

Its flexibility allows it to handle both high and low-temperature settings, as well as non-condensing and condensing environments with flue gases under positive or negative pressure. The reducer adheres to the highest industry standards, holding a CE mark and various EN 1856-1 designations. Installation is straightforward, thanks to its push-fit jointing system, secured with a Locking Band.

For P1 and H1 installations, ensure jointing gaskets are used at every connection point. Remember to maintain a 50mm clearance from any combustible materials.

SKU: 3-700-008

Technical Specifications
Material316L Stainless Steel
FuelsGas, Oil
ApprovalsCE, EN 1856-1
Installation MethodPush-fit jointing with Locking Band
Clearance50mm minimum from combustibles
TemperatureSuitable for high/low temperature; non-condensing & condensing environments
• Ensure a minimum clearance of 50mm from any combustible materials before installation. • Use the push-fit jointing system to secure the reducer and fasten firmly with the Locking Band. • For P1 and H1 installations, always use the recommended jointing gaskets at every connection point. • Check that all fittings are properly aligned to avoid leaks and inefficiencies. • Follow all provided installation instructions to maintain safety and system integrity.

The Reducer - Ø 800 is made from high-grade 316L stainless steel, ensuring durability and longevity.

Yes, it is engineered to handle both high and low-temperature settings, including non-condensing and condensing environments.

The Reducer - Ø 800 holds a CE mark and is designated under EN 1856-1 standards.

Installation is simple with its push-fit jointing system, secured using a Locking Band. Ensure to use jointing gaskets for P1 and H1 installations and maintain a 50mm distance from combustible materials.

The reducer is versatile, suitable for boilers, ovens, ventilation systems, and as a chimney shaft liner.

Yes, National Flues provides reliable nationwide delivery, ensuring your products arrive on time.

Absolutely, we offer trade accounts to facilitate easier transactions and better pricing for our frequent business customers.

What our experts say!

"The Reducer - Ø 800 is a top-tier product in our SWPro range, offering durability and high performance for both retail and trade customers. Delivered nationwide, National Flues remains rarely beaten on price."

The Reducer - Ø 800 is used to decrease the diameter of the proceeding flue system, ensuring seamless integration and optimal performance for a variety of commercial applications.

National Flues is a leading supplier of fireplaces and flues, committed to providing high-quality products at competitive prices. Serving both retail and trade customers nationwide, National Flues is known for its reliable delivery and superior customer service.

Our Rating Image

Your recently viewed products:

Multiple Payment Options- including Klarna, Clearpay, Mastercard, Visa and Paypal
Click to call for advice