Should I be adjusting my blower door readings for temperature and altitude?
The temperature of air affects its density. When air heats up it expands, and when it cools it contracts. Because of this and other effects, we need to make an … Read more
Did You Know?
Blower door test with wrong ring setting on gauge. What to do?
I Did A Blower Door Test With The Wrong Ring Setting On My DG-700. Is There A Way To Calculate The Correct Reading? Yes, there is. Channel B of the … Read more
The history of the blower door
The blower door as we know and love it today springs from technology first used in Sweden in 1977, where it was actually a blower window. The idea migrated to … Read more
