The Chimney Balloon® is the original inflatable chimney draught stopper — now even tougher and longer-lasting!
Since 1989, it’s helped stop heat loss through chimneys, which are one of the biggest sources of warmth escaping from your home. Available in four sizes, it’s easy to measure your chimney and pick the right fit. The balloon slips through narrow gaps and inflates to block the larger space above. The small size fits flues 16 - 24 inches wide and 9 - 14 inches deep. Each balloon comes with a free mouth inflation tube, but a foot or stirrup pump makes inflation quicker and more hygienic.

Why use a Chimney Balloon?
Independent BSRIA tests show it stops 87% of warm air escaping, boosting heating efficiency. On average, it cuts heating bills by around 4%, paying for itself in just 6 months — much faster than costly double glazing! By reducing energy use, you also lower your carbon footprint, helping the environment. Plus, it blocks debris, animals, and reduces annoying chimney wind noise.

Why is the Chimney Balloon better?
Includes a *Remember to Remove* safety tag.
Made from safe, PVC-free materials (no toxic dioxins or chlorine gas).
Available in precise sizes or custom-fit for odd-shaped flues (no loose gaps like “universal” products).
Flexible rubber band design molds perfectly to your chimney shape.
Made in the UK by Watford Workshop, a charity supporting disabled and disadvantaged adults.
Strong double-layer build for long-lasting use and great customer support.

With a Chimney Balloon, you get comfort, lower bills, top-notch safety, eco-friendly materials, and the satisfaction of supporting a great cause — all in one smart purchase!

Pack contents:
1 x Medium Chimney Balloon 24″ x 14″ (61cm x 36cm) with "Remember to Remove" notice
1 x Mouth inflation tube
Fitting instructions