As of December 2024, 21.2 million Americans live in manufactured homes, which is about 7% of U.S. households.1 The majority ...

remove the furnace door, reach in and touch the blower motor to see if it’s hot. If so, that indicates it tried to start, but can’t. Next, try spinning the blower wheel (HVAC pros call this ...

An energy audit includes the blower door test, shown above ... turn off all exhaust fans and shut off the furnace. Light some incense and walk slowly around the outer walls of the house.

The overall approach comprises the following activities: Field measurements: Evaluation of airtightness of buildings through a depressurisation test using blower doors Monitoring of energy consumption ...