This company makes energy saving devices and they are made in America.

www.batticdoor.com

It's definitely worth looking at.

Items include an inflatable & removable fireplace draftstopper, dryer vent one way exhaust, bathroom fan backdraft stoppers, attic door/stairs insulation, and whole house fan covers.

They have gotten rave reviews from customers.

They also sell through amazon.com and ebay (I think).

They have speedy delivery and have items in stock even though its the middle of winter.

This freezing cold weather is making me an insulation fanatic.