It helps you determine what it will cost to heat, and what you should do to seal it up. When Greening Homes did the blower door test on my 100-year-old house before we renovated it, they couldn't even ...

Koford, Tschida and David LeMieux, energy engineer for DEQ, were on site Friday to test one of the new condos with a blower door. The kit from the Helena Building Industry Association came complete ...

When HVAC contractors expand into home performance, they often experience a steep learning curve as they discover the new tools they need to add to their fleet. One tool considered an absolute ...

Energy codes are emerging or being updated nationwide. As air leakage testing becomes a requirement, some testers wonder what value it adds over informed visual inspections. Arguments about equipment ...