I have a whole-house ventilating fan mounted in a hallway ceiling in our 1,200-square-foot house. If possible, I'd like to install a small propeller-driven wind generator to take advantage of the output air from the ceiling fan. I'd hope the unit could produce two amps of 12-volt DC electricity to charge a battery bank.
Could you recommend a propeller, generator, and configuration to maximize the benefit of the fan's exhaust air?
You can't use the output from an attic fan or a whole-house fan, for a couple of reasons. First, the output, while seemingly significant, is very low-power wind. Second, and more important, the operation of a whole-house unit depends on unrestricted air flow through the building (in the windows and doors, and up and out the attic vents). Any blades would block the flow and set up back-pressure interference. Sorry, but it just won't work!
Whether you want to learn how to grow and raise your own food, build your own root cellar, or create a green dream home, come out and learn everything you need to know — and then some!LEARN MORE
At MOTHER EARTH NEWS, we are dedicated to conserving our planet's natural resources while helping you conserve your financial resources. You'll find tips for slashing heating bills, growing fresh, natural produce at home, and more. That's why we want you to save money and trees by subscribing through our earth-friendly automatic renewal savings plan. By paying with a credit card, you save an additional $5 and get 6 issues of MOTHER EARTH NEWS for only $12.95 (USA only).
You may also use the Bill Me option and pay $17.95 for 6 issues.