Best heat-powered stove fans for log burners UK (2026)
A heat-powered stove fan sits on top of a wood or multifuel stove and uses the difference between its hot base and cooler fins to turn a small motor, pushing warm air across the room instead of letting it gather at the ceiling. It needs no batteries or mains, so it keeps working in a power cut in a room heated by the stove. This page compares UK-sold fans on their makers' own figures: start temperature, maximum surface temperature, blade size and airflow, height and warranty. Every figure is credited to the maker or a UK retailer listing; we have not run or measured any of them.
By Tom Calder · Updated 21 October 2026 · 6 products, all price-tracked
Our picks by type
Photo: AmazonEcofan 812 AirMax
A larger room or a stove with a cooler top, where the lowest start temperature in the Ecofan wood-stove range helps.
as of 21 Oct 2026, 10:37 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.All 6 compared
| Stove fan | Type | Starts at | Max surface | Blades | Price |
|---|---|---|---|---|---|
Thermoelectric, 9 in (232 mm) blade · 85 °C · 345 °C · 9 in blade, 175 CFM A larger room or a stove with a cooler top, where the lowest start temperature in the Ecofan wood-stove range helps. | Thermoelectric, 9 in (232 mm) blade | 85 °C | 345 °C | 9 in blade, 175 CFM | £134.59 at Amazon as of 21 Oct 2026, 10:37 BST · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.In stockCheck price → |
Our verdictOur verdictResearched The AirMax is the top wood-stove model in Caframo's range. Its UK instructions give it a 175 CFM rating, a 9 in blade and an 85C minimum stove-top temperature, the lowest of the wood-stove Ecofans, with the same 345C ceiling. The maker's own comparison puts it ahead of the UltrAir and the Original on fuel savings; those are the maker's figures. It is a larger unit, so check the gap behind it before buying. Best for A larger room or a stove with a cooler top, where the lowest start temperature in the Ecofan wood-stove range helps. Good
Worth knowing
Who shouldn't buy it: Your stove has a narrow gap behind it or a low mantel above it, or you only want a fan for a small room. Whatever you buy, fit a carbon monoxide alarm in any room with a solid-fuel stove. | |||||
 Thermoelectric, 8 in (206 mm) blade · 100 °C · 345 °C · 8 in blade, 125 CFM A standard-size freestanding wood or multifuel stove where you want the maker's mid-range model with UK warranty support. | Thermoelectric, 8 in (206 mm) blade | 100 °C | 345 °C | 8 in blade, 125 CFM | £110 at Amazon as of 21 Oct 2026, 10:37 BST · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.In stockCheck price → |
Our verdictOur verdictResearched The UltrAir is the middle model in Caframo's wood-stove range. Caframo's UK instructions give it a 125 CFM rating and a 100C minimum stove-top temperature, with a ceiling of 345C. It shares the maker's two-year UK warranty, backed by a named UK distributor. A stove fan only moves heat that the stove already makes: it does not fix a stove that draws badly, and it is not a safety device. Best for A standard-size freestanding wood or multifuel stove where you want the maker's mid-range model with UK warranty support. Good
Worth knowing
Who shouldn't buy it: Your stove top runs cooler than about 100C, or you need a fan for a gas or pellet stove. Whatever you buy, fit a carbon monoxide alarm in any room with a solid-fuel stove. | |||||
 Thermoelectric (Peltier), 199 mm tall · 50 °C · 300 °C · 4 blades A modest stove with limited headroom, where a compact UK-brand fan with a low start temperature fits better than a larger one. | Thermoelectric (Peltier), 199 mm tall | 50 °C | 300 °C | 4 blades | £39.99 at Amazon as of 21 Oct 2026, 10:37 BST · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.In stockCheck price → |
Our verdictOur verdictResearched Valiant's Premium 4 is 199mm tall, which helps under a low mantel. Its user guide says the blades begin turning at around 50C, but Valiant recommends running it once the stove top is at about 100C or above, and it is meant for stoves whose surface stays within 300C. A bi-metallic part in the base tips the front of the fan up if the surface passes roughly 250C, to protect the motor and generator. Valiant says to sit it at the back of the stove beside the flue pipe, never in front of it. Best for A modest stove with limited headroom, where a compact UK-brand fan with a low start temperature fits better than a larger one. Good
Worth knowing
Who shouldn't buy it: Your stove top regularly runs above 300C. Whatever you buy, fit a carbon monoxide alarm in any room with a solid-fuel stove. | |||||
 Thermoelectric, 8 in (206 mm) blade · 110 °C · 345 °C · 8 in blade, 100 CFM A hot-topped freestanding wood stove where you want the maker's entry-level fan and do not need the extra airflow of the larger models. | Thermoelectric, 8 in (206 mm) blade | 110 °C | 345 °C | 8 in blade, 100 CFM | £84.99 at Amazon as of 21 Oct 2026, 10:37 BST · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.In stockCheck price → |
Our verdictOur verdictResearched The Original is the entry model in Caframo's wood-stove line. Its UK instructions give 100 CFM and a 110C minimum stove-top temperature, the highest start point in the range, so it suits stoves that run hot. The maker's own comparison puts its fuel savings and warm-up speed below the UltrAir and AirMax. This listing is the Canadian bilingual-packaged variant, so confirm UK warranty cover with the seller. Best for A hot-topped freestanding wood stove where you want the maker's entry-level fan and do not need the extra airflow of the larger models. Good
Worth knowing
Who shouldn't buy it: Your stove top is cool, or you want a fan with UK-specific packaging and clear warranty cover. Whatever you buy, fit a carbon monoxide alarm in any room with a solid-fuel stove. | |||||
 Thermoelectric, double fan with handle · 50 °C · 6 blades A household that wants a low-cost fan for an ordinary log burner and values a two-year warranty from a known UK-sold brand. | Thermoelectric, double fan with handle | 50 °C | — | 6 blades | £23.42 at Amazon as of 21 Oct 2026, 10:37 BST · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.In stockCheck price → |
Our verdictOur verdictResearched VonHaus lists a start temperature of 50C, six aluminium blades and a carry handle, with a stated two-year guarantee. Its listing quotes an airflow of up to 200 CFM; that is the maker's own claim. It gives no maximum surface temperature in the listing we read, so follow the instructions supplied with the fan and watch the stove top with a thermometer. Best for A household that wants a low-cost fan for an ordinary log burner and values a two-year warranty from a known UK-sold brand. Good
Worth knowing
Who shouldn't buy it: You want a published operating ceiling to check against a stove thermometer. Whatever you buy, fit a carbon monoxide alarm in any room with a solid-fuel stove. | |||||
 Thermoelectric, 20.5 x 17 x 10 cm · 50 °C · 4 blades A low-cost heat-powered fan for an ordinary flat-topped log burner. | Thermoelectric, 20.5 x 17 x 10 cm | 50 °C | — | 4 blades | £21.24 at Amazon as of 21 Oct 2026, 10:37 BST · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.In stockCheck price → |
Our verdictOur verdictResearched NETTA describes this as a heat-powered fan with a starting temperature as low as about 50C, needing no set-up, at about 700g. It carries a 365-day warranty on the maker's page, shorter than the two-year cover on VonHaus, Valiant and Ecofan. The maker gives no maximum surface temperature in the listing we read, so use a stove thermometer and follow the instructions supplied. Best for A low-cost heat-powered fan for an ordinary flat-topped log burner. Good
Worth knowing
Who shouldn't buy it: You want a published temperature ceiling or a warranty longer than a year. Whatever you buy, fit a carbon monoxide alarm in any room with a solid-fuel stove. | |||||
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Before you buy
Start with your stove top, because every fan here has a temperature window set by its maker, and nothing else matters if yours falls outside it.
Caframo's UK instructions give the Ecofan 800 Original a 110C minimum, the 810 UltrAir 100C and the 812 AirMax 85C, all with a 345C ceiling above which the fan is damaged. Valiant's user guide says the Premium 4 starts turning at about 50C, is worth running from about 100C, and is meant for surfaces up to 300C. VonHaus and NETTA both quote a 50C start but give no ceiling in the listings we read. A magnetic stove thermometer shows where your stove runs.
Then decide how much air you need moved.
The makers quote airflow in cubic feet per minute, and these are their own figures, not independent ones: Caframo gives 100 CFM for the Original, 125 for the UltrAir and 175 for the AirMax with its 9 in blade, and the VonHaus listing claims up to 200 CFM from six blades. A bigger blade generally means a taller fan: the AirMax is about 248mm tall before its handle by the UK distributor's table, the Valiant 199mm. Measure the gap between stove top and any mantel, shelf or flue collar before choosing.
Placement is where most fans underperform, and the makers are specific.
Caframo says to set an Ecofan towards the back corner of the stove top, where its fins can draw cooler air from behind. Valiant says to sit the Premium 4 at the back of the stove beside the flue pipe, never in front of it. Do not put any fan on the flue pipe itself unless the maker's instructions allow it, and keep the fins clear of walls and surrounds so air can reach them. Every base gets very hot in use: Caframo says move the fan by its handle only, and Valiant's guide calls for heat-proof gloves.
Check what protects the fan when the stove runs hot, because thermoelectric modules fail if they overheat.
Valiant builds a bi-metallic strip into the Premium 4's base that tips the front of the fan up once the surface passes about 250C, by its guide. Caframo instead publishes a hard 345C limit and expects you to lift the fan off before the stove reaches it. VonHaus and NETTA state no ceiling on the pages we read, so rely on the paper instructions and a thermometer. A failed fan is a small loss; a stove run too hot is the bigger problem, so follow the stove maker's guidance.
Finally, weigh brand support and warranty, which is where the price gap is mostly explained.
Ecofan has a named UK distributor, a two-year warranty for fans bought from bona fide UK retailers, and replacement motors through that distributor, by Caframo's UK instructions; a Canadian-packaged Original sold through a marketplace may fall outside that cover, so ask the seller. Valiant's guide gives a 24-month materials and workmanship guarantee, and VonHaus states two years on its listing. NETTA's own page gives 365 days. None of this changes the basics: fit a carbon monoxide alarm, have the chimney swept, and burn dry, Ready to Burn fuel.
We verify every product's specifications against at least two independent sources, re-check its UK price and stock on a schedule where we can track it automatically, and cross-check safety-relevant claims against official guidance. Every review is labelled Researched or Used and reviewed by us: where we've bought a product, or been sent it free, and used it ourselves, its review says which; where we haven't, our verdict is a considered spec-and-evidence comparison, not a hands-on test — and commissions never change a ranking either way. Read our full methodology →
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Common questions
Do heat-powered stove fans actually work?
They move warm air that would otherwise rise and sit under the ceiling, so the far side of the room warms sooner. Caframo's own comparison claims fuel savings and faster warm-up for its models; those are the maker's figures and we have not measured them. What a fan cannot do is make more heat, fix a stove that draws badly or improve a stove with wet fuel. Expect a modest, even improvement in comfort rather than a transformed room.
What temperature does a stove fan need to start?
It depends on the model, and the maker's figure is the one to trust. Caframo quotes 85C for the Ecofan AirMax, 100C for the UltrAir and 110C for the Original. Valiant says the Premium 4 begins turning at about 50C but is worth running from about 100C. VonHaus and NETTA quote 50C. A stove with a thick top or a cool-running design may never reach the higher figures, which is why a magnetic stove thermometer is worth having before you buy a fan.
Where should I put a stove fan on a log burner?
Follow the maker's placement. Caframo says to set an Ecofan at the back corner of the stove top, where the fins can pull cooler air from behind. Valiant says to place the Premium 4 at the back beside the flue pipe, never in front of it. Keep the fins clear of walls, surrounds and the flue, and do not put a fan on the flue pipe unless the instructions allow it. Move a hot fan by its handle or with heat-proof gloves, as the makers advise.
Can a stove fan overheat or be damaged?
Yes. The thermoelectric module that powers the fan has a limit. Caframo says its wood-stove Ecofans are damaged above a 345C stove-top temperature and should be lifted off before then. Valiant's Premium 4 has a bi-metallic strip that tips the fan up above about 250C and is intended for surfaces up to 300C. VonHaus and NETTA give no ceiling in the listings we read, so follow the instructions supplied and watch a stove thermometer.
Do I need a carbon monoxide alarm if I have a log burner?
Yes. In England, Approved Document J requires a carbon monoxide alarm in the room when a fixed combustion appliance is installed, and HETAS advises an audible alarm made to BS EN 50291. A stove fan does not detect or reduce carbon monoxide. If the alarm sounds, open doors and windows, do not add more fuel, and get everyone into fresh air. Call 999 if anyone is seriously unwell, or NHS 111 for advice, and do not use the stove again until a HETAS-registered installer has checked it.
Will a stove fan help in a power cut?
Only in the sense that it keeps working. A heat-powered fan needs no mains or batteries, so a room heated by a wood stove keeps its air moving while the lights are off. It adds no heat of its own and will not help a room without a stove. For the rest of the house, see our power-cut and keeping-warm guides: layers, hot water bottles and a closed door around the heated room do more than any fan.
