Pros and Cons of Ecofans: A Wood-Stove Accessory That’s Here to Stay

The Canadian company Caframo has never been shy about promoting its flagship Ecofan line—especially through its official distributor in England. Their campaigns are bold, and Ecofan owners often echo the message, dismissing competing products as “cheap Chinese knockoffs” or even claiming, sometimes controversially, that no other stove fans carry genuine safety certifications. We’re not here to validate or refute those claims; our role is simply to present the facts so that customers have everything they need to make an informed decision. At the end of the day, our readers are always at the center of our reviews.

What is beyond dispute, however, is Caframo’s pioneering role in this market. The company has been producing its line of Ecofan stove fans for over 30 years, and it was probably the first manufacturer worldwide to introduce this kind of product to the market. Their basic Ecofan 800 quickly became the model to beat—and was copied relentlessly by manufacturers across the globe. More than just a gadget, the Ecofan solved one of the main drawbacks of traditional wood stoves: while stoves generate a lot of heat, it tends to rise straight to the ceiling instead of spreading evenly. By converting stove heat into electricity to power a fan, Caframo offered an elegant, self-powered solution that improved comfort without adding cords, batteries, or noise.

The idea took off almost immediately in North America and the UK, and soon the rest of Europe caught on as well. Other parts of the world, however, remained relatively unaware of the technology—with one major exception: China, where mass production quickly began and the market was flooded with cheap alternatives. Many companies failed to survive this surge of cutthroat competition. Caframo, however, thrived. Despite the pressures of low-cost overseas labor, they won loyal customers by building a reputation for unparalleled quality, excellent customer service, and even off-warranty solutions—the sort of trust that convinces buyers to pay a significantly higher price for a product they know will last.

Today, while many other brands have come and gone, Ecofan remains the most popular stove fan in the United States and Canada, and continues to have a strong following in the UK. Caframo may no longer be the only player in the game, but in the eyes of many customers, they are still the brand that defines it.

Where Are Ecofans Made? The Truth About Canadian vs. Chinese Stove Fans

Many stove fan buyers—on both sides of the Atlantic—prefer to avoid Chinese-made products, hoping instead to support local businesses. In the case of Caframo’s Ecofan, the company explicitly claims that its products are both designed and made in Canada. Caframo is a privately owned Canadian manufacturer with a long history of producing small motors and specialty fans, and their branding strongly emphasizes Canadian craftsmanship.

That said, it’s worth noting the broader market reality: today, almost all stove fans powered by a Peltier module are manufactured in China. In fact, even several well-known European brands have quietly outsourced their production to Chinese factories. This makes Caframo something of an intriguing exception to the rule—if indeed every part of their Ecofan is truly made in Canada, they stand apart from the competition not just in quality and warranty, but also in their commitment to local manufacturing.

Ecofan Airflow Ratings: Real Lab-Tested Performance vs. Inflated Claims

Unlike many competing brands, which often brag about improbably high airflow values, Caframo has taken a more grounded approach. Instead of inflating numbers by 10%, 30%, or even 90%, they base their ratings on real laboratory research using proper measuring equipment. As a result, Ecofan airflow figures can sometimes look modest compared to those claimed by rivals—but you can be confident that the numbers reflect the actual performance of the fan.

Caframo even published graphs to demonstrate that the most powerful stove fans are indeed Ecofans. It’s important to remember, though, that gauging stove fan airflow is a complicated process requiring specialized equipment. And even then, raw airflow values don’t tell the whole story: what also matters is the angle of the airflow cone. A wide cone is better for heating broader spaces, while a narrower but stronger stream of air is more effective for pushing heat across a larger room.

Where Should the Ecofan Actually be Placed?

As with all fans powered by TEG (thermoelectric) modules, placement is a crucial factor in both performance and longevity. These fans operate on a simple principle: the greater the temperature difference between the base and the top section, the more power the fan generates (see our post on the Seebeck effect if you want to dive deeper). For best results, the fan’s heat sink should sit on one of the hotter parts of the stove top, while the upper fins are exposed to cooler air for effective heat dissipation.

This is why manufacturers advise placing a stove fan at the back of the stove top, well away from the flue pipe. The flue is often the hottest area of a working stove, and placing a TEG-powered fan too close can quickly damage its most sensitive components. In fact, like all Peltier-based fans, Ecofans cannot withstand temperatures above about 350 °C (660 °F). If your stove regularly runs hotter than this, you may want to consider a Stirling engine stove fan, which can tolerate higher operating temperatures. Either way, it’s wise to keep a simple, inexpensive stove thermometer on hand—many brands even include one for free—so you always know when your fan is at risk.

Another important note: while the original Ecofan 800 includes a bi-metal safety strip that gently tilts the unit to reduce overheating risk, other Ecofan models do not. This small but clever feature is widely used in other stove fan brands to protect the fragile TEG module, and its absence means you need to be especially mindful of placement and stove temperature to keep your fan running for years.

Ecofan Warranty Guide: How Caframo’s 4-Year Coverage Stacks Up Against Rivals

All Caframo stove fans can have their motor replaced with a replacement kit, which is available if they break down after their warranty.  Nearly all manufacturers offer a replacement kit for their fans or provide an inexpensive refurbishment service.

By the way, there’s an interesting issue related to the Ecofan warranty.  As the Ecofans are distributed through the official partners only, your warranty claim won’t be accepted if you bought your Ecofan from an unofficial seller or an online auctioner. Things go really bad if you bought the Caframo fan abroad for a reasonable price, as you will need to send your fan back to the official distributor in that country to have it repaired.  This might sound strange, but the official distributors have their own warranty policy which varies from one country to another, so, an Ecofan bought in Ireland is covered by a 1 year warranty, whereas UK customers are granted two years’ warranty for the same product (unless there’s a multiplied mistake on the Irish official website)!

Every Ecofan model is available with three blade colors to choose from. It’s great to have a choice but this feature is rather useless when the fan is running.

As with all stove fans powered by TEG (thermoelectric) modules, proper placement is essential to get the best performance and avoid damage. These fans work on a simple principle: the greater the temperature difference between the stove top (hot base) and the cooling fins (cooler top), the more efficiently they run (see our post on the Seebeck effect for a deeper explanation). For this reason, the recommended spot is usually at the back of the stove top, well away from the flue pipe. The flue tends to be the hottest part of a working stove, and placing a fan too close to it is one of the quickest ways to overheat and damage the delicate Peltier module.

It’s also important to remember that, like all Peltier-based fans, Ecofans cannot withstand surface temperatures above about 350 °C (660 °F). If your stove regularly reaches those levels, a Stirling engine stove fan is a safer choice, as they tolerate higher operating ranges. Regardless of which type you use, it’s always wise to keep a simple, inexpensive stove thermometer on hand—many brands even include one for free—so you can monitor conditions and protect your investment.

The vast majority of Peltier fans on the market are fitted with some kind of safety device to help prevent overheating. Brands such as SuperFast and Valiant use a bimetallic strip in the base that bends when exposed to high heat, tilting the fan at around 250 °C so the body lifts slightly off the stove surface. Sirocco fans take a different approach, using small adjustment screws in the base that can both protect the fan and level it on sloped stove tops.

By contrast, most Caframo Ecofans are missing such mechanisms. The notable exception is the original Ecofan 800, which does include a bimetal strip. Later models, however, rely solely on careful placement and user vigilance. That means owners need to be more mindful: no matter what safety feature a Peltier fan has—or doesn’t have—it should always be removed if the stove surface exceeds about 340–350 °C to prevent permanent damage to the TEG module.