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Sheep Wool Insulation Eco-Economiser Cylinder Jacket


In Stock


Money saving



This Eco-Economiser Sheep Wool Cylinder Jacket is your eco-friendly solution for slashing your hot water bills. Crafted from natural sheep’s wool, this insulation jacket fits snugly around your hot water tank to hold heat in and minimise heat loss, keeping hot water hotter for longer. That means you’ll get the same hot bath while spending less to heat it!

Unlike synthetic options, this sheep wool lagging is eco-friendly, durable, and doesn’t shed irritating fibreglass particles. It can pay for itself in as little as 4.5 months!

This simple yet cost-effective insulation is a must-have for anyone looking to maximise energy efficiency in their home and save money on their bills… With soaring energy prices in the UK, we think this is well worth the investment!

Size: 36” x 18” (900mm x 450mm)

Suitable for: 35 Gallons (160 Litre) cylinders

Product description & details

Shipping & Returns

Standard delivery

  • Free when you spend over £30 or £3 for orders under £30.
  • Delivered within 2-4 working days from the date of dispatch.
  • Smaller items will be delivered using Royal Mail 48. Larger items will be delivered by Fedex or ParcelForce.
  • Delivery Monday to Saturday (excluding bank holidays).

Expedited delivery

  • £6 for all orders.
  • A fully tracked service, delivered within 1-3 working days, from the date of dispatch.
  • Smaller items will be delivered using Royal Mail 24. Larger items delivered via FedEx or ParcelForce.
  • Delivery Monday to Saturday (excluding bank holidays).

View our full Shipping Policy


  • We have a 60-day return policy, which means you have 60 days after receiving your item to return it.
  • To be eligible for a return, your item must be in the same, re-sellable condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
  • The postage cost for the return will need to be covered by yourself (please keep the proof of postage until your return has been processed).

View our full Returns Policy

Buy Land Plant Trees

At the core of Chimney Sheep is our Community Interest Company, Buy Land Plant Trees (BLPT). For every purchase you make with us, 20% of the profit facilitates the planting of trees on agriculturally poor land in Cumbria.

We set up BLPT in 2019 as a ‘boots on the ground’ tree planting initiative. The company is run by us and the tree planting is done by us. We do it to help you and us to reduce our impact on the planet. The trees we plant reduce CO2 output as well as contribute to the reduction of flooding and the creation of habitats for wildlife.

BLPT isn’t a tick box exercise nor a distant and detached carbon offset company. In fact, this is as much part of our business as the products we sell and is an integral part of our ethos. We are big believers in the phrase ‘think globally, act locally’ and want to make a genuine difference


Customer Reviews

Don't just take our word for it. Take a look at the customer product reviews below.

Customer Reviews

Based on 4 reviews
Andrew Hardy
Easy to install

We bought this to replace and old glass fibre and plastic one which as starting to disintegrate.
It was very easy to install, particularly in the hard to reach area at the back.
It looks neater and tidier than the old one and seems to work better;

Wendy Deacon

So pleased with my new sheep jacket for the hot water tank. Now the heat is contained the water stays hotter for longer. Very easy and adaptable to fit. The rope is a good idea but not very strong, some bits snapped off when securing it so maybe double up on that supply.

Amanda Wynne
Hot Water Tank Jacket

Really happy and impressed with the Chimney Sheep insulation jacket. Arrived quickly, was as described and was super easy to fit around our tank. Love that its wool and no plastic fibres present, and will help with the bills as extra lagging on the tank will use less power to retain the hot water in it.

A big improvement!

Love this cylinder jacket. It really is a big improvement over the previous one made of fibreglass, with a plastic cover which went brittle and disintegrated after a few years. This one has a lovely, fabric cover and looks like it will last a long time. Having only just fitted it, I can't comment on how effective it is at keeping the water hot.
I've only given it 4 stars because the two cords which are supposed to go around the cylinder to hold it in place are a bit short so I had to tie them quite tightly even though the instructions tell you not to compress the jacket. So another 30cm length for 2 of the 3 cords would be good.

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