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DR21 Air Vent Cover


In Stock


Energy saving

Money saving

The DR21 air vent cover fits easily in place of louvred air vents and prevents annoying draughts from blowing through into your home.

Product description & details

DR21 vent draught excluder on wall
DR21 vent draught excluder on wall

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 8 reviews
Jason Cook
Great product!

I replaced the standard angled vent which my builder had installed on the outside of the vent for my wood burner with the DR21 and it has made an instant improvement on the left of drafts coming in to my house. Now they are zero!

Malcolm Watson

Definitely does the job; no longer a cold draught from below the log burner when it is not in use, and log burner still burns clean when lit. Easy to fit in place of the previous vent cover.

D Williams

I was very pleased to have discovered this as a safe way to reduce the draught from a vent (hole in the wall) made when an open fire was installed. However, it does not seem to have made an impact. I don't see any improvement from the louvred vent.

Chimney sheep fan

Does the job but seems a bit pricey.

Amazon Customer

Quick delivery. Easy to fit. Really reduced the draughts through the original outlet. Extemely well pleased.

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