IL - 90° Tee - Ø 150
At a Glance
- Trusted 25+ years in the UK
- Robust twin wall insulation with a 6mm air gap
- Constructed with an aluminium inner liner and zalutite coated outer case
- Suitable for internal and external installations
- Designed for naturally aspirated gas-fired appliances

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]
- Info
- Specs
- Install
- FAQs
The IL 90° Tee Ø 150 is a superior twin wall insulated pre-fabricated gas vent system that has earned trust across the UK for over 25 years. It's designed specifically for naturally aspirated domestic gas-fired appliances with a draught hood/diverter, where the chimney operates under negative pressure and dry conditions. This top-tier product accommodates flue gas temperatures up to 250°C, ensuring dependable performance.
Available in 100mm, 125mm, and 150mm diameters, each unit features an aluminium liner paired with a zalutite outer case, separated by a 6mm air gap. It's suitable for both internal and external installations but is not recommended for condensing or positive pressure applications. Invest in the IL 90° Tee Ø 150 for long-lasting and efficient gas venting solutions, supported by National Flues' reliable delivery and competitive pricing.
SKU: 24-150-31
Technical Specifications | |
---|---|
SKU | 24-150-31 |
System | IL |
Inner Material | Aluminium |
Outer Material | Zalutite (coated steel) |
Temperature Rating | Up to 250u00b0C |
Dimensions | u00d8 150 (also available in 100mm and 125mm variants) |
Application | Naturally aspirated gas-fired appliances with draught hoods |
Insulation | Twin wall with a 6mm air gap |
Joint Method | Push fit and twist lock |
Warranty | 5 year conditional warranty |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. 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.
National Flues Ltd Verdict
The IL 90° Tee Ø 150 is a prime example of high-quality construction and reliability. Perfect for naturally aspirated domestic gas-fired appliances, it delivers exceptional performance. National Flues provides this product nationwide, catering to both retail and trade customers.
The IL 90° Tee Ø 150 is designed to assist in venting naturally aspirated domestic gas-fired appliances, effectively managing flue gases and ensuring safety and efficiency.
National Flues is a leading supplier of fireplaces and flues across the UK, known for competitive pricing, reliable delivery, and support for both retail and trade customers. Enhance your home heating solutions with our trusted products.
