Heat Powered Ecofan Model 812

Elevate your wood-stove heating with the Ecofan® Model 812 AirMax, the most powerful heat-powered stove fan available — no electricity, no batteries, no hassle.

Why choose the Ecofan 812 AirMax?

• Self-powered & maintenance-free: The 812 uses thermoelectric technology to convert stove-top heat into electricity, so it runs only when your stove is hot. No cords or plugs needed — completely energy-free. 

• Maximum airflow for large spaces: With up to 175 CFM, the 812 efficiently distributes warm air deep into your living space — ideal for large rooms, open floor plans, barns, workshops, or cabins. 

• Faster, more even warming: This fan helps your stove warm the room up to 38% faster, spreading heat farther and more evenly — so you stay cozy without overfiring. 
  

• Reduced fuel use & increased stove efficiency: By circulating warm air rather than letting heat rise to the ceiling, the 812 can help reduce wood or pellet consumption—often resulting in ~18% fuel savings. 
  

• Quiet & durable: Unlike noisy plug-in blowers, the Ecofan operates at a whisper-quiet level. Its simple two-blade design reduces motor stress and ensures smooth, vibration-free operation. 
  

Key Specifications:

• Operating temperature range: 185 °F – 650 °F (85 °C – 345 °C) — the lowest minimum start temperature in the Ecofan lineup, so you get warm-air circulation earlier in the burn cycle. 
  

• Airflow: up to 175 CFM — optimal for room sizes well over 240 ft². 
  

• Footprint: compact and sturdy — sits directly on top of most wood, coal, or pellet stove surfaces.

• Automatic speed adjustment: blades spin faster when the stove is hotter, and slow down (or stop) as the stove cools — no switch needed.

Easy to use & maintenance-free: Place it on your stove top. As the stove heats, Ecofan begins circulating warm air. Once the stove cools, the fan naturally stops — no need to plug in or turn off. No motors to oil, no batteries to replace. 

Great for:

• Homes using wood, coal, or pellet stoves

• Large living spaces, cabins, barns, workshops

• Anyone wanting to stretch wood or pellet usage and improve fuel efficiency

• People seeking a silent, automatic, low-maintenance way to distribute heat

Upgrade your stove with the Ecofan 812 AirMax — and enjoy warmer rooms, lowered fuel costs, and more even heat distribution, all without electricity or effort.