It makes sense that an attic fan can save you money. After all, it keeps your top floor cool so you don't need as much air conditioning -- reducing your bill up to 30%.
So you can see why this tax-credit-worthy fan caught my attention. This solar powered attic fan from Solar Star, doesn't need electricity to keep it running and lowers your electric bill by keeping your house cooler. Bonus: It installs in 30 minutes and is eligible for the 30% federal tax credit. Sounds like a good deal to me.