× National Flues
We Won't Be Beaten On Price.
Free Delivery on Orders Over £100
100% 5 Star Reviews on Trustpilot
Free Flue Design Service Available
Need Help? 01670 206999 (8am-5pm)

H-Cowl 316 Stainless Steel MF - Ø 100 (9-4-H)

National Flues proudly presents the H-Cowl 316 Stainless Steel MF - Ø 100, a premium stainless steel cowl designed for superior chimney draft performance. Ideal for oil and solid fuel fired appliances, this durable cowl enhances your flue’s efficiency and safety. Perfect for both coastal and inland installations, its robust design and weatherproof features make it a must-have chimney accessory.
Hover to Zoom / Click for Gallery
£121.49
with free delivery Give us a call if you find it cheaper and we'll try to price match.
Payment Options

At a Glance

  • Superior draft performance enhancement
  • Constructed from durable 316 stainless steel
  • Compatible with oil and solid fuel fired appliances
  • Effectively minimises downdrafts
  • Provides robust rain protection and wind isolation

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]

The H-Cowl 316 Stainless Steel MF - Ø 100 is expertly designed to provide superior isolation of combustion gases from prevailing winds, thereby enhancing the efficiency of your chimney or flue system. Constructed from high-grade 316 stainless steel, this cowl is exceptionally durable and suitable for use with oil and solid fuel fired appliances. With this cowl, you can minimize downdrafts and ensure a safer, more efficient flue operation.

SKU: 9-4-H

Technical Specifications
Material316 Stainless Steel
Diameter100mm (4 inches)
CompatibilityOil & Solid Fuel Fired Appliances
Anti-DowndraftYes
Rain ProtectionYes
Bird GuardNo
GasNo
OilYes
Seasoned Wood & Smokeless FuelYes
Installation is straightforward, though it is highly recommended that a professional undertakes the installation to ensure optimal performance and compliance with safety standards. Ensure that the existing flue system is properly prepared and that all connection points are securely fastened. Follow the manufacturer's guidelines and local regulations to achieve a watertight and durable setup. Regular inspections and maintenance will help maintain its efficiency over time.

An H-Cowl improves draft performance by isolating combustion gases from wind, minimizing downdrafts and enhancing overall efficiency.

Yes, the H-Cowl 316 Stainless Steel MF - Ø 100 is designed to be compatible with both oil and solid fuel fired appliances.

This H-Cowl is made from 316 grade stainless steel, known for its durability and resistance to corrosion.

Yes, the 316 stainless steel construction makes it resistant to corrosion, making it suitable for use in coastal environments.

No, this version of the H-Cowl does not include a mesh, allowing for unobstructed air flow.

Installation is straightforward; however, it's recommended to have it installed by a professional to ensure optimal performance and safety.

This H-Cowl has a diameter of 100mm (4 inches), making it suitable for standard sized flue systems.
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 H-Cowl 316 Stainless Steel MF - Ø 100 buyers guide

Secure your H-Cowl today to improve your draft performance – add to cart now!

Your recently viewed products:

Multiple Payment Options- including Klarna, Clearpay, Mastercard, Visa and Paypal