Upstairs/downstairs - Southtown Star

Upstairs/downstairs Southtown Star, IL - Jul 4, 2008 Change the furnace filter once a month. "Pleated 1-inch filters restrict air flow. We recommend 1-inch fiberglass filters for maximum air flow or pleated ...

Shopping for a furnace? Don't spend thousands more than necessary - WalletPop

Shopping for a furnace? Don't spend thousands more than necessary WalletPop, VA - Jun 26, 2008 Air quality is another question we wanted to address, and the answers ranged from a simple furnace filter to an air cleaner. Air cleaners come in two styles ...