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VIT-Smooth GLOSS - Increaser - Ø 100-125mm (71-100-002)

Enhance your flue system with National Flues' VIT-Smooth GLOSS Increaser – a robust, elegant, and high-performance connecting pipe adaptor. Perfectly suited for gas, oil, and solid fuel appliances, this adaptor offers a seamless transition between flue pipe sizes while boasting a durable gloss black finish. Whether you are upgrading or installing a new flue system, enjoy the reliability and superior design of a National Flues product that meets both aesthetic and safety standards.
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£26.49
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At a Glance

  • Constructed from zero carbon steel with a high-quality powder vitreous enamel finish in gloss black.
  • Designed for temperatures up to 600°C, ideal for gas, oil, and solid fuel appliances.
  • Friction-fit joints provide a secure, easy-to-install connection without sealants.
  • Ensures a smooth transition between differing flue pipe diameters for an efficient flue system.
  • Adheres to safety guidelines with a recommended minimum distance of 375mm from combustible materials.

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The VIT-Smooth GLOSS Increaser - Ø 100-125mm is a highly durable and visually appealing connecting pipe adaptor, perfect for gas, oil, and solid fuel appliances with temperatures up to 600°C. Constructed from zero carbon steel and finished in a high-quality powder vitreous enamel, this increaser ensures long-lasting performance and an elegant gloss black finish. Ideal for use as a connecting pipe between your appliance and flue liner, chimney stack, or twin wall flue system, the VIT-Smooth is designed for easy installation and maintenance.

Note that it should not pass through ceilings or combustible walls and must be positioned at least 375mm away from combustible materials. Its friction-fit joints eliminate the need for sealing, although jointing compounds like fire cement or high-temperature silicone sealant can be used for added security. Ensure your flue system is perfectly configured with this versatile and reliable increaser.

SKU: 71-100-002

Technical Specifications
MaterialZero carbon steel
FinishHigh-quality powder vitreous enamel (Gloss Black)
Temperature RatingUp to 600u00b0C
Diameteru00d8 100-125mm
ApplicationGas, oil, and solid fuel appliances
Installation GuidelinesMust be positioned at least 375mm from combustible materials; not for use in ceilings or combustible wall passages
• Position the increaser as a connecting adaptor between your appliance and flue liner, chimney stack, or twin wall flue system. • Ensure a minimum distance of 375mm from any combustible materials such as timber or plasterboard. • The friction-fit joints simplify installation; however, jointing compounds like fire cement or high-temperature silicone sealant can be used for extra security. • Do not route the increaser through ceilings or combustible walls, in compliance with safety regulations. • Allow sufficient access for periodic inspection and cleaning to maintain optimal performance.

Yes, it is suitable for gas, oil, and solid fuel appliances with temperatures up to 600°C.

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

The VIT-Smooth has friction-fit joints that do not require sealing, but you can use a jointing compound for extra security.

It should be installed at least 375mm away from any combustible materials, such as wood or plasterboards.

Yes, it can be cut. However, ensure that any exposed steel is covered with high-temperature paint to prevent rusting.

Regular inspection and cleaning are recommended, especially for solid fuel applications. Ensure easy access for maintenance when installing.

Its primary purpose is to provide a smooth, incrementally increasing connection between different diameters of VIT-Smooth flue pipes, enhancing compatibility within the flue system.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. 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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Read our review in our VIT-Smooth GLOSS - Increaser - Ø 100-125mm buyers guide

Secure your VIT-Smooth GLOSS Increaser today for a flawless flue setup.

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