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Rain Cap - Ø 250 (20-250-RC)

National Flues presents the premium Rain Cap Ø 250, the ultimate chimney cap designed to offer exceptional rain protection and safeguard your flue system from vermin and debris. Crafted from 316L stainless steel and engineered for high performance, this rain protection accessory is ideal for users of MI-FLEX 316 and 904 flexible flue liners. Read more...
Rain Cap - Ø 250
IN STOCK
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Now only £59.99
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At a Glance

  • Robust 316L stainless steel construction
  • Withstands temperatures up to 600°C (T600 rating)
  • Compliant with Building Regulations Document J (masonry chimneys only)
  • Suitable for wood (<20% moisture), oil, gas, and smokeless coal appliances
  • Integrated design supports the vertical weight of the flue liner
  • Easy installation with top plate and clamp combination

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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.
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  • 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: sales@nationalflues.com

The Rain Cap Ø 250 is a high-quality accessory designed for use with MI-FLEX 316 and 904 flexible flue liners. This essential cap provides superior protection against rain, vermin, and debris, ensuring your chimney system remains safe and functional. Designed to comply with Building Regulations Document J, it must be used inside a masonry chimney and can withstand temperatures up to 600°C (T600 designation), making it suitable for wood with less than 20% moisture, smokeless coal, gas, and oil appliances.To prevent water ingress and protect your appliance, the Rain Cap Ø 250 should be used in conjunction with a top plate and clamp, eliminating the need for an insert.

Additionally, this cap aids in supporting the vertical weight of the flue liner, provided the chimney structure is sound and properly maintained. For optimal performance, sweeping and maintenance should be carried out at least annually by a competent person, and twice a year for solid fuel appliances.With its robust construction and reliable performance, the Rain Cap Ø 250 is an integral part of any effective chimney system, ensuring longevity and efficiency.

SKU: 20-250-RC

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

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Technical Specifications
SKU20-250-RC
Material316L Stainless Steel
Colour FinishNatural / Stainless Steel
Temperature ResistanceUp to 600°C
ComplianceBSEN 1856-2 T600 N1 W V2 L50012 G, HETAS / CE
SystemMI-FLEX Accessories MF20
Fuel CompatibilityWood (<20% moisture), Oil, Gas, Smokeless Coal
The Rain Cap Ø 250 must be installed within a masonry chimney in accordance with Building Regulations Document J. It is essential to use the cap in conjunction with a top plate and clamp to ensure optimal rain and debris protection. Do not install on non-masonry enclosures such as timber or plasterboard boxing. The cap is designed to support the weight of the flue liner, provided the chimney structure is sound and properly maintained. For effective long-term performance, routine sweeping and maintenance should be conducted at least annually by a competent person, and twice yearly if used with solid fuel appliances. Ensure that all installation steps are verified by a professional to maintain compliance and safety.

The main purpose of the Rain Cap Ø 250 is to protect your chimney from rain, vermin, and debris. It ensures water does not enter the flue system, which could otherwise cause damage to your appliance and chimney.

Yes, the Rain Cap Ø 250 is suitable for use with wood (less than 20% moisture), smokeless coal, gas, and oil appliances, and it can withstand temperatures up to 600°C.

The Rain Cap Ø 250 must be used inside a masonry chimney in compliance with Building Regulations Document J. Non-masonry enclosures such as timber or plasterboard boxing are not acceptable.

Yes, the Rain Cap Ø 250 should be used in conjunction with a top plate and clamp to ensure proper installation and maximum protection. The insert is not required when using this combination.

Your chimney system should be designed to allow for easy sweeping and maintenance. It is recommended that solid fuel chimneys be swept at least twice a year, at the end of the heating season and at the start of the next. Ensure that the sweeping is done by a competent person.

When used with pot hanging cowls, the Rain Cap Ø 250 helps support the vertical weight of the flue liner. It is important that the chimney structure is sound and properly maintained for this purpose.

For solid fuel applications, you can find a list of HETAS registered sweeps at www.hetas.co.uk. It is crucial to ensure that sweeping is carried out by a competent person to maintain the efficiency and safety of your chimney system.

 

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