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Energy Design Update
Excerpts from: An Inexpensive Cap for Attic Stairs

The least expensive available stair cover, the Battic Door. The Battic Door is a bottomless 13 1⁄2-inch deep cardboard box sized to cover standard pull-down attic stairs. Three sizes are available to fit 22”x54”, 25”x54” or 30"x54" stairs. The Battic Door is shipped flat, in a 26”x51” package. Assembly is simple.

The Battic Door comes with a package of 3⁄4-inch wide foam weatherstripping to install at the perimeter of the stair jamb.

The Battic Door reduces exfiltration. To increase thermal resistance, a $99.50 “BEST kit” is available.
The Battic Door costs $29.50 - $99.50 plus shipping. Competing products cost over $200 and are not insulated to R-50. For weatherization contractors looking for an inexpensive way to cut down on exfiltration at attic stair openings, the Battic Door is worth considering.

For more information, contact Mark Tyrol, Battic Door, P.O. Box 15, Mansfield, MA 02048-0015. Tel: (508) 320-9082; Fax: (508) 339-4571; E-mail:; Web site:

As Featured on Good Morning America - Fireplace DraftStopper

Battic Door was profiled by Builder magazine at the 2013 NAHB International Builders Show

Battic Door was profiled on DIY Channel's Your Best Built Home


We could all agree that home heating costs are going straight up.  Which is why keeping that expensive warm air inside is very important.  When chimney's are not in use that expensive heat is escaping straight up them.
  One would think closing the damper would be enough to keep cold air out and warm air in, but not necessarily so.
A solution to this problem is the fireplace plug.  It is like a plastic inflatable plug for your chimney.
To install it, you partially inflate it with the breathing tube...
...then slip it up into the top of the firebox...
...and lock it in place.
Finally, finish inflating the plug and tuck the tube out of sight.

Some heating experts claim that an unlit fireplace with a damper open can increase heating costs by as much as 30 percent. Now that could add up to $500 over the course of a season.

Well, here's a solution that's relatively inexpensive, easy to install and pretty much invisible.