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VIT-Smooth GLOSS - Smooth 90° Elbow with Door - Ø 100mm (71-100-040)

The National Flues VIT-Smooth GLOSS 90° Elbow with Door - Ø 100mm is the perfect solution for connecting your gas, oil, or solid fuel appliance to a flue liner, chimney stack, or twin wall flue system. Emphasising high-quality design and durability, this premium connecting pipe is complimented by a sleek, gloss black finish for a modern aesthetic. As you explore our range, consider looking for high-temperature silicone and jointing compounds as optional accessories to ensure the best possible in Read more...
The price you pay today £69.99
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At a Glance

    Premium, zero carbon steel construction
    Stunning powder vitreous enamel gloss black finish
    Friction fit joints for fast and secure installation
    Integrated access door for convenient chimney inspection and cleaning
    High temperature tolerance up to 600°C
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. 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. We can sometimes reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.

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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.

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

The VIT-Smooth GLOSS 90° Elbow with Door - Ø 100mm is a premium connecting pipe designed for seamless integration between your gas, oil, or solid fuel appliances and the flue liner, chimney stack, or twin wall flue system. This durable elbow piece, crafted from zero carbon steel, features a sleek powder vitreous enamel gloss black finish, ensuring both functionality and aesthetic appeal. Ideal for applications with temperatures up to 600°C, the VIT-Smooth pipe is not intended for passing through ceilings or combustible walls.

Installation is straightforward with its friction fit joints, requiring no sealant, though high-temperature silicone or jointing compound can be used for extra security. Maintenance is equally simple, with easy access doors for regular chimney inspection and cleaning. Designed for longevity and efficiency, this product is perfect for maintaining optimal performance in your heating system.

SKU: 71-100-040

Technical Specifications
MaterialZero Carbon Steel
FinishPowder Vitreous Enamel Gloss Black
Type90° Elbow with Door
DiameterØ 100mm
Temperature RatingUp to 600°C
InstallationFriction Fit Joints (optional high-temp silicone or jointing compound for extra security)
• Install using the friction fit joints which are designed for a secure, no-sealant setup, although using high-temperature silicone or jointing compound is recommended for extra peace of mind. • Ensure the smaller diameter is oriented downwards to prevent condensate issues. • Note that the VIT-Smooth GLOSS is not suitable for passing through ceilings or combustible walls. • When cutting the pipe, cover all exposed steel with high-temperature paint to avoid rusting and maintain the integrity of the finish.

Yes, the VIT-Smooth GLOSS 90° Elbow is suitable for gas, oil, and solid fuel appliances with temperatures up to 600°C.

The VIT-Smooth has friction fit joints, so sealing is not required. However, for extra security, you can use high-temperature silicone sealant or fire cement on each joint.

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

Ensure the smaller diameter is pointing downwards to keep condensates within the flue system. Keep VIT-Smooth 125mm at least 375mm away from combustible materials.

Regular inspection and cleaning of the chimney are necessary, especially for solid fuel applications. Install access doors at direction changes for easy maintenance.

Carefully cover any exposed steel with high-temperature paint to prevent rusting over time.

Yes, appropriate personal protective equipment (PPE) should be worn at all times during installation.

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