Best fire extinguisher spray UK
Updated: 20 October 2026
You want one can for a small fire in paper, a bin or a piece of waste. On 19 October 2026 the sprays on our [fire extinguishing spray comparison](/hub/fire-protection/fire-extinguishing-spray) ran from the Super Help at about £11.99 (4.6 from 2,753 reviews) to the Kidde Flame Out at about £18.37 with no review line. The best fire extinguisher spray UK, in this set, is a conditional pick: Kidde’s KFS-500 names wood, paper and waste and says it does not replace a BS EN 3 extinguisher, and it has no class number and no amazon reviews. Peter F. compared the listings. We did not run a fire test. A qualifying purchase can earn a commission at no extra cost to you.
You want one can for a small fire in paper, a bin or a piece of waste.
You want one can for a small fire in paper, a bin or a piece of waste. On 19 October 2026 the sprays on our fire extinguishing spray comparison ran from the Super Help at about £11.99 (4.6 from 2,753 reviews) to the Kidde Flame Out at about £18.37 with no review line. The best fire extinguisher spray UK, in this set, is a conditional pick: Kidde’s KFS-500 names wood, paper and waste and says it does not replace a BS EN 3 extinguisher, and it has no class number and no amazon reviews. Peter F. compared the listings. We did not run a fire test. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Class rating | Named fuels | amazon.co.uk reviews | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Super Help Super Help Fire Stop 400 ml | None printed | Minor fires | 4.6 from 2,753 | 7.6 | about £11.99 | View offer |
| Best value |  Kidde Kidde Flame Out 500 ml | None printed | Grease, wood, paper, waste | No review line | 4.6 | about £18.37 | View offer |
| Alternative |  Firechief Firechief Lith-Ex 500 ml, pack of 2 | n/a | Class A, under 60 Wh | No review line | 4.1 | about £69.96 | View offer |
On this page
What “best” can mean here
“Best” here means the kept listing whose public words fit a small household fire in ordinary solids, and whose maker does not pretend the can is a full-size extinguisher. The checks behind a label — class letters, BS 6165 against BS EN 3, expiry, the electrical line — sit on the fire extinguishing spray buying guide. A missing review line, on Kidde and on Lith-Ex, is a data gap, not a pass and not a fail.
Kidde Flame Out for a named household fuel list
Kidde Flame Out, model KFS-500, ASIN B0F9B2W1VP, was about £18.37. The bullets name grease, wood, paper and household waste. The listing has no customer-review line, so we do not invent a star rating.
The user guide says keep at least 1 metre away, empty the can, and do not treat the spray as a replacement for an EN 3 extinguisher. No class number such as 5F appears in the sheets we reviewed. The word “grease” is not a Class F test. Choose the KFS-500 if you want a named brand, a short list of household fuels, and a written EN 3 limit. Skip it if you need a printed rating, amazon reviews, or a stated voltage for live electrics. The best value mark means only that about £18.37 is the next price that adds those limits, after the cheaper Super Help has already taken the top pick on review volume.
Super Help when size and price are the job
Super Help Fire Stop, model SH2400, is two amazon offers of one can. B0075293WW was about £11.99, 400 ml, 530 g, 4.6 from 2,753 reviews, and the listing says a bracket is included. B0711RT41Y was about £12.98, 4.5 from 145 reviews. The model number matches. The bracket does not: one buyer of the dearer listing said the mount in the picture was missing.
The maker’s technical sheet says the spray is not for electrical installations. There is no fire-class rating. Buy B0075293WW if you want the small, cheap spare for a car or caravan and you will read the can. Skip both if you need a stated class, a dielectric mark, or equipment for a workplace assessment. The 2,753 reviews explain the price and the top pick. They do not promote the can into a tested 3A 13B 5F extinguisher.
PLEMO and Lith-Ex, and when to leave this list
PLEMO F62N was about £12.99 and 4.4 from 39 reviews. Reviewers say the can itself only mentions a wetting agent and shows no fire class or British Standard. Skip it when you need a rating.
Firechief Lith-Ex FLE500, B0H7FLGSV7, was about £69.96 for two 500 ml cans, with no review line. The listing’s guide is lithium-ion batteries up to 60 Wh — a phone, a charger, a laptop — and class A solids. The maker sheet prints fire rating n/a and claims manufacture to BS 6165:2019. Watt-hours and the leave-now rule are on the lithium battery fire extinguisher spray page.
“Best” on this page is a condition: Kidde for a named household fuel list you accept without a class number and without reviews; Super Help if price and a car bracket matter more and you accept no rating at all. Neither sentence means fire-service approval.
Common questions
Which spray is the best buy for a small household fire?
For paper, wood or waste, the conditional pick is the Kidde Flame Out KFS-500 at about £18.37, because the listing names those fuels and the user guide says it is not a BS EN 3 extinguisher. It has no class number and no amazon review line. If you would rather pay about £11.99 for a 400 ml car spare and you will live with no rating, that is the Super Help SH2400, not a second definition of best.
Why is the cheapest can also the most reviewed?
Super Help at about £11.99 has 4.6 from 2,753 reviews because it has been on amazon.co.uk since 2012 and people buy it as a small car or camper can. The written sample is mostly unused cans. A large star line tells you the listing is familiar. It does not tell you the spray has passed a British Standard fire test.
Is Kidde worth more with no amazon reviews on this ASIN?
You pay about £6 more than the Super Help, and you get a 500 ml named-brand can, a 2-year warranty, and a guide that states the EN 3 limit and a discharge of about 30 seconds. You do not get reviews on this ASIN, and you do not get a printed 5F. Worth it only if those written limits are what you came for. The missing stars are a gap, not a hidden failure and not a hidden pass.
Should I buy PLEMO because it claims every fuel?
No. At about £12.99 the bullets are the widest list in the set, and the reviews say the can only discloses a wetting agent. Thirty-nine reviews at 4.4 do not repair that clash. Buy it only if you have read the bottle and you are content with what the bottle actually prints.
When is the Lith-Ex twin the right spend?
When the battery you charge is under the 60 Wh guide, you want two 500 ml cans, and about £69.96 is acceptable with no amazon reviews. A single can was about £40 at Wickes that day, on a different page. It is the wrong spend for a general cupboard spare, and it is not fire-service approval. London Fire Brigade says do not fight a fire.
Related pages
Sources
Public UK sources and amazon.co.uk listings named in the research digest, last checked on 19 October 2026.
- BSI BS 6165:2019 summary, small disposable aerosol extinguishers (retrieved 19 October 2026)
- Regulatory Reform (Fire Safety) Order 2005, article 13 (retrieved 19 October 2026)
- GOV.UK: Fire safety in the home (retrieved 19 October 2026)
- London Fire Brigade: pan fires (retrieved 19 October 2026)
- Firechief FLE500 technical sheet (retrieved 19 October 2026)
- BAFE: extinguisher for a small lithium-ion battery (retrieved 19 October 2026)
- Kidde KFS-500 user guide (retrieved 19 October 2026)
- Super Help Fire Stop technical data sheet (retrieved 19 October 2026)