by Mark Hansberger on February 20, 2018March 28, 2018 How to Check for Air Leaks Around the House You wouldn’t leave a window or front door wide open on a cold winter’s night or a hot summer’s day. In essence, big and small air leaks in your home’s envelope do the same thing […]Read More Filed Under: Energy Efficiency Tagged With: air leaks– checking for air leaks– energy efficiency– hvac system