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IL - Gas Flue Box - Recessed - Ø 125

National Flues presents the IL Gas Flue Box Recessed Ø 125 – a reliable gas vent solution designed for naturally aspirated domestic gas appliances such as radiant and ILFE gas fires. This premium gas vent, available in a range of sizes, stands out with its robust aluminium liner and corrosion-resist... More...
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At a Glance

  • - Twin wall insulated design
  • - Suitable for naturally aspirated gas-fired appliances
  • - High-quality aluminium liner with durable zalutite outer casing
  • - Proven performance with over 25 years of trusted use in the UK
  • - Available in multiple diameters (100mm, 125mm, 150mm)
Now only £219.49
Including VAT & Free Delivery Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.

 

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Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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

The IL Gas Flue Box Recessed Ø 125 is an exceptional twin wall insulated pre-fabricated domestic gas vent, perfect for naturally aspirated gas-fired appliances. In use for over 25 years in the UK, it is renowned for its superb quality and reliability. Designed for appliances with a draught hood/diverter, this vent operates under negative pressure and dry conditions with flue gas temperatures not exceeding 250°C.

Available in 100mm, 125mm, and 150mm diameters, it features an aluminium liner and a durable zalutite outer case, separated by a 6mm air gap. Ideal for internal and external applications, this product is not suitable for condensing and positive-pressure systems.

SKU: 24-125-62

Technical Specifications
ModelIL - Gas Flue Box - Recessed - u00d8 125
SKU24-125-62
Inner MaterialAluminium
Outer MaterialZalutite (coated steel with zinc and aluminium)
InsulationTwin wall with a 6mm air gap
Fuel TypeGas
Max Flue Gas Temperature250u00b0C
Clearance To Combustibles50mm (2 Inches)
CertificationCE, BS EN 9001:2008
Warranty5 year conditional warranty
Installation MethodPush fit and twist lock
Size Options100mm, 125mm, 150mm
Before installation, ensure that you have verified the clearance requirements – maintain a minimum of 50mm from combustibles. The IL Gas Flue Box Recessed Ø 125 requires the appliance to be fitted with a draught hood/diverter and must only be used with naturally aspirated gas-fired appliances where the flue gas temperature does not exceed 250°C. It is vital to adhere to local building codes and gas safety regulations. Verify that the installation surface is level and that all connections are secure using the push fit and twist lock joint method. If in doubt, consult a certified installer to ensure a safe and compliant setup.

This flue box is designed for use with naturally aspirated domestic gas-fired appliances with a draught hood/diverter, such as conventional radiant gas fires and Inset Live Fuel Effect (ILFE) gas fires.

Yes, the IL Gas Flue Box is suitable for both internal and external applications, provided it is not used for condensing or positive pressure systems.

The IL Gas Flue Box is designed to handle flue gas temperatures up to 250°C.

The flue box consists of an aluminium liner and a zalutite outer case, separated by a 6mm air gap for enhanced insulation and durability.

Yes, the IL Gas Flue Box is available in three diameter sizes: 100mm, 125mm, and 150mm.

No, this product is not suitable for use with condensing or positive pressure applications.

The IL Gas Flue Box has been used in the UK for over 25 years, earning a reputation for its quality and reliability.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. 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. If you find it cheaper within 48 hours, we'll refund the difference.

Read our buyers guide for this IL - Gas Flue Box - Recessed - Ø 125

National Flues Ltd Verdict

The IL Gas Flue Box Recessed Ø 125 is a top-tier choice for anyone in need of a reliable and high-quality gas vent solution. It has been trusted in the UK market for over 25 years, and National Flues ensures you get the best price and dependable nationwide delivery. Serving both retail and trade customers with secure online payments.

The IL Gas Flue Box Recessed Ø 125 is designed to safely vent flue gases from naturally aspirated domestic gas-fired appliances, such as radiant and ILFE gas fires.

National Flues is a leading supplier of fireplaces and flues throughout the UK, committed to offering competitive prices and reliable delivery. Serving both retail and trade customers, they provide secure online payments and excellent customer service.

 

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Secure your IL Gas Flue Box Recessed Ø 125 today for assured performance and safety.

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