Free Delivery over £100+ 5on Trustpilot Browse our popular stoves Fast Mainland UK Delivery Buy stoves with install packs Call 01670 206 999 for help

VIT-Smooth GLOSS - Increaser - Ø 125-150mm (71-125-002)

National Flues presents the VIT-Smooth GLOSS Increaser Ø125-150mm, a premium connecting pipe designed for gas, oil, and solid fuel appliances. This essential flue component delivers a safe, efficient and durable solution for your chimney systems, ensuring optimal venting and performance.

What it’s for

The VIT-Smooth GLOSS Increaser is designed to seamlessly connect gas, oil, and solid fuel appliances to larger flue systems, ensuring efficient and safe venting.

Full features & benefits

  • Durable Construction: Provides longevity and reduced maintenance
  • High-Temperature Resistance: Safe operation with gas, oil, and solid fuel appliances
  • Protective Coating: Minimises corrosion and wear, extending product life
  • Easy Installation: Friction-fit joints simplify setup while ensuring a secure, leak-free connection
  • Versatile Application: Ideal for various flue systems including Flue Liner, Chimney Stack, or Twin Wall systems
Now only £26.99
Give us a call if you find it cheaper and we'll normally price match.
  • Fast deliveryFriday, November 14th*
  • Best PriceCall us to beat any price you found online.
  • Secure checkoutCard· Google/Apple Pay· Klarna· Paypal

 

Payment Options

At a Glance

  • Premium zero carbon steel construction
  • Durable powder vitreous enamel coating
  • Withstands temperatures up to 600°C
  • Friction-fit joints for secure, seamless connections
  • Enables smooth transition from Ø125mm to Ø150mm

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

The VIT-Smooth GLOSS Increaser Ø 125-150mm is a premium connecting pipe designed for gas, oil, and solid fuel appliances, tolerating temperatures up to 600°C. This single skin flue system, crafted from zero carbon steel with a durable powder vitreous enamel coating, ensures longevity and reliability. Ideal for connecting appliances to your Flue Liner, Chimney Stack, or Twin Wall Flue System, it should not be used to pass through ceilings or combustible walls.

Proper installation requires adherence to safety protocols, ensuring no part of the VIT-Smooth is within 375mm of combustible materials. Friction-fit joints eliminate the need for sealing but can be made more secure with jointing compounds. Regular maintenance, particularly for solid fuel systems, involves installing access doors for cleaning.

Trust VIT-Smooth for a seamless, efficient flue connection.

SKU: 71-125-002

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, November 14th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

Technical Specifications
MaterialZero Carbon Steel
FinishPowder Vitreous Enamel
Temperature RangeUp to 600°C
Diameter RangeØ125mm to Ø150mm
Joint TypeFriction-Fit
ApplicationGas, Oil & Solid Fuel Appliances
Minimum Clearance375mm from combustible materials
• Ensure the smaller diameter end points downwards to enable proper drainage. • Maintain a minimum clearance of 375mm from combustible materials. • Use friction-fit joints; for extra security, apply a high-temperature silicone sealant or fire cement. • Avoid installation through ceilings or combustible walls. • For solid fuel systems, incorporate access doors to facilitate regular cleaning.

The VIT-Smooth GLOSS Increaser can handle temperatures up to 600°C, making it suitable for gas, oil, and solid fuel appliances.

No, the VIT-Smooth GLOSS Increaser should not be used to pass through ceilings or combustible walls.

Ensure that the smaller diameter points downward to keep condensates within the flue system. Install the VIT-Smooth at least 375mm away from combustible materials.

No, VIT-Smooth uses friction-fit joints. However, you can use fire cement or high-temperature silicone sealant for extra security.

Yes, it can be cut, but ensure to cover any exposed steel with high-temperature paint to prevent rusting.

For solid fuel applications, chimneys should be swept at least once a year or more frequently as needed.

The VIT-Smooth GLOSS Increaser allows you to connect appliances to a flue system with an incremental increase from Ø 125mm to Ø 150mm.

 

Call the Experts   8am-5pm
👀 7 people watching this