Simple and inexpensive way to keep the heat in your home. The few minutes it takes to install a Draft Stopper can be like paying yourself $500/hour. It pays for itself so quickly. Just fit up in the firebox, blow it up, and place on the included tee. The warm air will stay in your house where you want it and you will stop drafts and odors from coming down your chimney.
In winter, your fireplace acts like a giant straw. Since hot air rises, warm house air is sucked up through the chimney causing uncomfortable drafts, and cold air is pulled in through any cracks in the exterior walls. The Draft Stopper inflatable draft stopper pillow fills the gap. They are made of puncture resistant nylon urethane, a "green material." A red tag hangs down reminding the homeowner to remove the unit before lighting a fire.
Draft Stopper 
Simple and inexpensive way to keep the heat in your home. The few minutes it takes to install a Draft Stopper can be like paying yourself $500/hour. It pays for itself so quickly. Just fit up in the firebox, blow it up, and place on the included tee. The warm air will stay in your house where you want it and you will stop drafts and odors from coming down your chimney.