Free Delivery over £100+ 5on Trustpilot Browse our popular stoves Fast Mainland UK Delivery Buy stoves with install packs Call 01670 206 999 for help

Rain Cap - Ø 150 (20-150-RC)

Discover National Flues' Rain Cap - Ø 150, an essential chimney accessory designed to protect your chimney from rain, debris, and pests. This superior chimney cap is perfect for use with MI-FLEX flexible flue liner systems, offering durability, high temperature performance, and unmatched reliability. Read more...
Rain Cap - Ø 150
IN STOCK
Product Thumbnail
Now only £30.99
Give us a call if you find it cheaper and we'll normally price match.
  • Fast deliveryMonday, November 17th*
  • Best PriceCall us to beat any price you found online.
  • Secure checkoutCard· Google/Apple Pay· Klarna· Paypal

 

Payment Options

At a Glance

  • Superior rain, debris, and pest protection
  • Works seamlessly with MI-FLEX 316 and 904 flexible flue liners
  • Withstands high temperatures up to 600°C (T600 designation)
  • Durable 316L stainless steel construction with a natural finish
  • HETAS and CE approved, ensuring compliance and reliability
  • Enhances chimney longevity and reduces maintenance requirements

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: sales@nationalflues.com

The Rain Cap - Ø 150 is specifically designed to provide superior rain protection for your chimney stack, crucial for extending the life and efficiency of your chimney system. This essential accessory is part of the MF20 MI-FLEX series, crafted to work seamlessly with MI-FLEX 316 and 904 flexible flue liners. Adequate installation is critical, as Building Regulations Document J stipulates that flexible flue liners must be fully enclosed within a masonry chimney.

When correctly paired, this cap ensures that water, birds, and other pests are kept at bay, thereby reducing maintenance needs and preventing potential damage. This robust product is suitable for appliances operating up to 600°C (T600 designation) and is perfect for use with wood (<20% moisture), smokeless coal, gas, and oil. Ensure your chimney system is sound, with well-maintained chimney pots, for optimal performance.

Routine sweeping and inspection, recommended at least twice yearly for solid fuel appliances, will maintain peak efficiency and safety.

SKU: 20-150-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.

This is us — real advice over the phone, or at the counter, and real stock in our warehouse.

Customer being served at the National Flues trade counter
Trade counter Installer collection & same-day help.
Team helping customers at the counter
Advice Real people on the phone to spec the right parts.
Friendly member of the team at the front desk
Here to help Friendly, straight answers from HETAS approved experts.
Warehouse shelves with boxed flue components being picked for dispatch
Warehouse Orders picked & dispatched nationwide.
Talk to the team Visit our trade counter
Technical Specifications
Material316L Stainless Steel
DiameterØ 150 mm
Temperature Limit600°C (T600 designation)
System CompatibilityMI-FLEX Accessories MF20
ApprovalsHETAS, CE
Colour FinishNatural / Stainless Steel
Fuel CompatibilityWood (max 20% moisture), Smokeless Coal, Gas, Oil
Installation must comply with Building Regulations Document J. The Rain Cap - Ø 150 should be installed with the appropriate top plate and clamp to ensure proper fit. Verify that your chimney system, including the chimney pot and flaunching, is structurally sound. Regular cleaning and routine maintenance, especially biannual sweeping for solid fuel appliances, are crucial. If you are uncertain about the installation procedure, consult a qualified professional to ensure your chimney system is secured and performs safely.

The Rain Cap - Ø 150 is designed to prevent rain, debris, and pests from entering the chimney, protecting its integrity and efficiency.

This rain cap is specifically designed to work with MI-FLEX 316 and 904 flexible flue liners and should be used in conjunction with a masonry chimney.

Yes, the Rain Cap - Ø 150 should be used with a top plate and clamp to ensure proper installation and functionality.

Yes, it is suitable for appliances operating up to 600°C (T600 designation), making it perfect for various fuel types including wood, smokeless coal, gas, and oil.

It's recommended to inspect and sweep your chimney at least once a year, and for solid fuel appliances, twice a year—once at the end and once before the start of the heating season.

No, under no circumstances should chemical cleaners or mild steel tools be used on stainless steel chimneys. Use only recommended methods for cleaning.

Ensure your chimney pots are in good condition without cracks and that appropriate flaunching is made at the top of the stack. The chimney structure must be sound for the Rain Cap - Ø 150 to perform effectively.

 

Call the Experts   8am-5pm
👀 6 people watching this