Chimney Sheep® Chimney Draught Excluder – Square 13″ x 13″ (33cm x 33cm)
SKU: 87438458511

Chimney Sheep® Chimney Draught Excluder – Square 13″ x 13″ (33cm x 33cm)

Sale price$31.50 Regular price$35.00
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Description

Chimney Sheep® Chimney Draught Excluder – Square 13″ x 13″ (33cm x 33cm)How does a Chimney Sheep draught excluder work? A chimney syphons air out of a building ALL THE TIME, not just when the fire is lit. 80 cubic metres of air flow up a chimney per hour. This removes all the lovely expensive centrally heated warm air from a room. The air needs to be replaced so it drags in cold air from around doors, windows, and other leaky parts of the building. This creates the cold air that we feel. If you plug the chimney, you will

How does a Chimney Sheep® draught excluder work?

A chimney syphons air out of a building ALL THE TIME, not just when the fire is lit. 80 cubic metres of air flow up a chimney per hour. This removes all the lovely expensive centrally heated warm air from a room. The air needs to be replaced so it drags in cold air from around doors, windows, and other leaky parts of the building. This creates the cold air that we feel. If you plug the chimney, you will cut out that syphon effect and drastically cut other cold draughts at the same time.

The Chimney Sheep® is a thick pad of Herdwick felt that lodges in the throat of the chimney just above the fireplace. It needs to be a bit bigger than the opening to hold itself in place. It plugs the gap and stops warm air escaping, plus prevents cold air from sinking down.

The wool is treated with a unique ionic protect plasma which makes it 100% moth proof and aids with the longevity of the Chimney Sheep®. We have customers that have had the same ones for over 10 years.

It is as simple as that! Read more about the stack effect and how a Chimney Sheep® works here.

 

What are the benefits of using a Chimney Sheep® draught excluder?

The list is endless but here are a few of the main benefits:

  • Reduces your energy bills – a Chimney Sheep® stops about 5% of your household heat from escaping, reducing your heating bill by £150 or so. You can estimate how much your home might save in energy costs by using our savings calculator.
  • Reduces your carbon footprint – a Chimney Sheep® makes your heating more efficient, reducing your CO2 output by up to 250kg per year.
  • Reduces wind noise – those horrendous howling winds coming through your chimney can be reduced and sometimes stopped altogether by plugging it with a Chimney Sheep® (you can turn your TV volume back down now…).
  • Stops wildlife and debris falling in – no more surprises in the hearth, a Chimney Sheep® will catch it all and stop your curious cat getting stuck up the chimney too!
  • Works in the summer – a Chimney Sheep® prevents hot air from entering your home and retains air-conditioned air, keeping your house cool in the summer.
  • Reduces air pollution in the home – a Chimney Sheep® reduces the number of air changes in a property so considerably reduces the amount of air pollution that enters the home.

 

Does a Chimney Sheep® REALLY work?

It really does! Don’t take our word for it, here is all the evidence:

  • We are the only chimney draught excluder to have a BBA Agrément Certificate. To achieve this the Chimney Sheep® had to go through numerous laboratory tests, on-site evaluations, quality management checks and product inspections, over several years, passing all the assessments to gain the award. The BBA is a worldwide credible industry body and the certificate means that Chimney Sheep® are recognised by building control, government departments, specifiers, and insurers as meeting the BBA’s standards of quality, safety and reliability. It provides you and them with reassurance of the product’s fitness for purpose.
  • Rigorously tested by BSRIA and the University of Liverpool which showed that a Chimney Sheep® will stop around 5% of household heat from escaping and therefore save users around £150 & 250kg of CO2 per year per chimney.
  • Hailed as one of Grand Designs host, Kevin McCloud’s ‘Green Heroes’.
  • DIY Doctor 5* review – read the full review, here.
  • Chimney Sheep® has been featured in the press quite a bit too, from the likes of The Guardian, The Times, Good Housekeeping and Ideal Home.

 

Are Chimney Sheep® sustainably made?

Absolutely. We are really passionate about the environment and sustainability. Everything from our sourcing of wool to our packaging is chosen with the environment in mind and the aim of our reducing our carbon footprint as much as we can. All Chimney Sheep® are made here in our factory in Workington, Cumbria, using Herdwick wool sustainably sourced from farmers around Cumbria. We collect the wool once a year which we call our ‘Operation Wool’ project. We pay the local farmers a fair price for this which is usually more than the market price and helps to support them.

The felt head of a Chimney Sheep® usually lasts about 10 years and is 100% wool which means it is completely biodegradable and compostable. The handles are made with recyclable plastic therefore are extremely durable and designed to last for decades. We have designed them so that when the felt head does wear out, you can just replace it with a new felt head and keep the same handle to reduce waste and the use of excess plastic. When the time comes and you have to say goodbye to your felt head, get in touch with us.

By using a Chimney Sheep® you are doing your bit to reduce your carbon footprint and we are really passionate about helping you to reduce your CO2 output even further. That is why we have set up our very own Community Interest Company, Buy Land Plant Trees, so that with each purchase a proportion of the profits will go towards planting trees on agriculturally poor land.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 87438458511

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Edee Nehl
Bozeman, US
★★★★★ 5
Very sturdy.
Style: Levelers, Size: 10 Pack
Works well, easy to use.
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Reviewed in the United States on March 13, 2026
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Jake Garnett
Whiting, US
★★★★★ 5
Sturdy, Simple, and a Must-Have for RV Leveling!
Style: Levelers, Size: 10 Pack
The Tri-Lynx 00015 Lynx Levelers have been a fantastic addition to my RV setup, especially for stabilizing the jacks. These levelers are durable, easy to use, and provide great support, whether I’m parked on gravel, grass, or an uneven surface. Here’s what I love about them: Design and Durability: These levelers are built tough! The bright orange color makes them easy to spot, and the interlocking design is straightforward yet very effective. I feel confident stacking them to the desired height, and they stay solidly in place without any shifting or sinking, even under the weight of the RV jacks. Ease of Use: One of the best features is how simple these are to set up and take down. They stack quickly and neatly, and I love that I can easily adjust the height by adding or removing levels. They’re much more convenient than traditional wood blocks, and they don’t splinter or deteriorate over time. Versatility and Stability: I’ve used these levelers on different types of surfaces—gravel, sand, and even on slight slopes—and they’ve performed well across the board. The stability they provide gives me peace of mind, knowing that my RV is secure and won’t shift during the night. They work great with the jacks, keeping everything stable and level. Storage and Portability: The carrying bag that comes with the pack is a nice bonus, making it easy to store them compactly. The pack of 10 is perfect for my needs, providing enough flexibility to handle different setups depending on the terrain. Small Points for Consideration: One small note is that these levelers may require a bit of experimentation to get the exact right height when stacking. It’s minor, but worth noting for anyone new to using leveling blocks. Once you get used to the setup, though, it’s smooth sailing. Final Verdict: The Tri-Lynx 00015 Lynx Levelers are a must-have for any RV owner. They’re durable, stable, and incredibly easy to use, making leveling and stabilizing a breeze. I’d recommend them to anyone looking for a reliable solution to keep their RV perfectly level and secure. Great value for the price!
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Reviewed in the United States on November 13, 2024
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James Hightower
New York, US
★★★★★ 5
Work great
Style: Levelers, Size: 10 Pack
These are very good for leveling camper at uneven campsites.
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Reviewed in the United States on May 22, 2026
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Erin
Massapequa, US
★★★★★ 4
Worked well!
Style: Levelers, Size: 20 Pack
We recently had our first camping trip with our ‘84 RV at a local state park. prior to the camping trip, it had rained a lot. At this park, parking is on grass. I was nervous the heavy RV would sink and we would get stuck so I found these. It was packaged nicely. Easy to figure out how to use. It took a bit to get the RV to back over them but was good once it did. Color is bright. They were stable. A few did “bow” we noticed after we grabbed them out. Came in a nice storage bag and light to carry.
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Reviewed in the United States on July 2, 2024
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SanAntonioMan
Phoenix, US
★★★★★ 5
Good product
Style: Levelers, Size: 10 Pack
I am a truck camper that camps about 4 months of every year and use these blocks to level my truck at each of the various sites I camp. They stack and are stored in a bag so take limited space. The blocks are easy to use, quick to deploy, are fairly durable and work well - I love them! They are a little pricy but worth it to me.
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Reviewed in the United States on August 7, 2025

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