This Old House

Locate Home Energy Leaks with a Blower Door Test

Richard Trethewey

Locate Home Energy Leaks with a Blower Door Test

Learn about two diagnostic tools that will help you increase your home's energy efficiency and reduce energy consumtion. A blower-door test lets you pinpoint the places in your home where conditioned air is leaking, and an infrared camera lets you see whether your home has adequate insulation in the places where it needs to be.