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Triplelock - Oil Cowl, Chinamans Hat - Ø 125 (34-125-O)

National Flues proudly presents the Triplelock Oil Cowl, also known as the Chinamans Hat - Ø 125, a premium accessory for secure chimney flue installations. Engineered for re-lining masonry chimneys, this robust and efficient product meets stringent BS EN 1856:2 and BS715 Kitemark certifications. Ideal for both gas and oil applications, it ensures safety, efficiency, and a long-lasting performance, making it a vital component for any modern flue system.
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£23.49
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At a Glance

  • Crafted from 316L grade stainless steel (0.10mm thick)
  • Innovative TRIPLELOCK seal for an airtight finish
  • Certified to BS EN 1856:2 and BS715 standards
  • Suitable for both gas and oil appliances (up to 28 sec oil)
  • Robust design with five convolutions ensuring superior integrity

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:

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Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

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

The Triplelock Oil Cowl, also known as the Chinamans Hat Ø 125, is a high-quality, single-skin flexible flue liner designed to reline masonry chimneys. Craftily built from 316L grade stainless steel, the liner is 0.10mm thick and ensures durability and long-lasting performance. With five convolutions between each seam and the innovative TRIPLELOCK seal, you are guaranteed an airtight setup.

Ideal for appliances running on gas (as specified by the manufacturer) and oils up to 28 seconds, this liner can withstand temperatures of up to 260°C. The product meets the stringent standards of BS EN 1856:2 and holds a BS 715 Kitemark certification. It integrates seamlessly into your chimney, ensuring a secure and efficient operation.

Installation involves feeding the liner from the top, securing it with a clamp plate, and finally, sealing and weatherproofing with a suitable cement. Regular maintenance, including annual sweeping, is recommended for optimum performance.

SKU: 34-125-O

Technical Specifications
SKU34-125-O
Product NameTriplelock - Oil Cowl, Chinamans Hat - u00d8 125
Material316L Stainless Steel
Thickness0.10mm
Fuel CompatibilityGas, Oil (up to 28 sec oil)
Max Temperature260u00b0C
CertificationBS EN 1856:2, BS715 Kitemark
Warranty2 Years
ManufacturerMi-Flues Ltd
DesignFive convolutions with innovative TRIPLELOCK seal
• Begin by feeding the flue liner from the top of the chimney. • Secure the liner in position using the provided clamp plate at the chimney top. • Seal and weatherproof the connection thoroughly with a suitable cement to prevent any leakage. • Ensure that you carry out regular maintenance, including an annual chimney sweep, to maintain optimal performance and safety. • While DIY installation is possible, professional installation is recommended to ensure compliance with safety standards and proper sealing.

It is suitable for gas appliances (as specified by the manufacturer) and oil-fired appliances up to 28 seconds with a maximum temperature of 260°C.

The cowl is crafted from 316L grade stainless steel, offering excellent durability and corrosion resistance.

Yes, the installation involves feeding the liner from the top of the chimney. However, professional installation is recommended for best results.

The TRIPLELOCK seal provides an airtight closure, enhancing the efficiency and safety of your flue system.

Yes, the Triplelock Flue Liner is Kitemarked to BS 715 and conforms to BS EN 1856:2 standards.

For optimal performance, it is recommended that chimneys serving gas and oil appliances be swept at least once a year.

Installation involves securing a nose cone to the flue liner, pulling it through the chimney, fixing it at the top with a clamp plate, and sealing it with suitable cement.
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 Triplelock - Oil Cowl, Chinamans Hat - Ø 125 buyers guide

Ensure safety and efficiency in your chimney flue—order the Triplelock Oil Cowl today!

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