This Stirling engine powered fan is powered solely by the heat from a stove. It requires no external power source such as batteries or AC power. The fan circulates the stove’s warmth quietly, efficiently and inexpensively. These fans use a different way to power themselves compared to the ecofans. Ecofans have device that uses the Peltier-Seebeck effect to produce electricity. However these fans have a Stirling engine inside them powering the fan. It has no electrical parts whatsoever and is virtually maintenance-free under normal circumstances.

The fan operates from about 350°F to a maximum rated temperature of 1000°F. It operates most efficiently between 390°F and 800°F. The normal surface operating temperature of a wood stove is 450°F to 700°F. It has been designed to operate at peak efficiency through the entire normal operating temperature range of your stove.

Note: This fan can move upto 2 to 3 times the amount of air compared to ecofans.

• No electricity required and no electrical parts
• 100% mechanical
• Fan outputs up to 300 CFM (cubic feet per minute) to help circulate warm air throughout the room
• 400 RPM on a 400° surface
• Fan speed varies automatically with the stove temperature
• Overall height: 13"
• Overall width: 10"
• Base dimensions: 6" X 3"
• Weight: 5 lbs.
• Fan diameter: 10"
• Material: stainless steel, aluminum, brass
• Color: Black, stainless, brass
• Operating temperature: 390°F - 1000°F