Our Technology

How it Works

Ecofans use thermoelectric technology to convert a temperature difference into electricity. The base of the Ecofan must contact a heat source of at least 65°C (150°F) and the fins of the Ecofan must remain cool by drawing in cooler air from behind your stove.

Thermoelectric Technology

At the centre of an Ecofan is a unique thermoelectric module. The patented Ecofan design creates a hot side and a cold side on the module. When this happens, a principle called the “Seebeck Effect” causes electrons to flow creating electricity!

Tested And Proven

Researchers from the faculty of Engineering at the University of Waterloo and Caframo collaborated on a scientific study to measure the reduction in firewood needed to maintain comfort with the use of an Ecofan. The team developed protocol and procedures to measure, evaluate and verify the effectiveness of Ecofans in reducing the quantity of fuel used. Conducted under controlled conditions, tests were designed to maintain a human comfort level of 22.5°C (72.5°F). The test facility was constructed as a room within a room. The inner room was set up similar to a living room with a wood stove, a couch, finished floors, ceilings and walls; and the outer room was set up to control the outside temperature, accurately modeling the heat loss from a typical house. Conducted during the winter of 2010, tests were completed in pairs with comparable conditions and burn rates between wood stove operation with and without an Ecofan. The representatives from the University of Waterloo have verified the data as being accurate.


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