Can You Stop Window Sash Pulley Heat Loss?
Can You Stop Window Sash Pulley Heat Loss? Tuesday December 29, 2009#spacer{clear:left}#abc #sidebar{margin-top:1.5em}zSB(3,3) …did you even know that window sash pulley heat loss exists? Most older windows have sash pulleys. Even many new windows do, too. These are the ropes that run over the top of pulleys–one end attached to the window, other end attached to a weight. This aids in opening the sash (the movable part of the window). Now, place your hand over that pulley opening in the dead of winter. You’ll feel a steady draft of ice-cold air entering your house. A fellow named Duane Miller e-mailed me recently about his Sash Pulley Air Blocker Plugs. These plugs fit into the open spaces above and below the pulley. According to the site, The Air Blocker Plug is manufactured of a special insulation-sealant that is fabricated from a slow-expanding compressible cellular weatherization foam. To my uneducated eyes, they look exactly lik
