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What is that enormous fan and why are you using it to suck all of the air out of my house?
The tool you are referring to is called a blower door and it is one of our primary tools for evaluating the air barrier of your home.
Simply put, the air barrier refers to the dividing line between conditioned and unconditioned air: everything on the inside of the air barrier is conditioned air, and everything else is unconditioned air. Movement of air through the air barrier is considered leakage. The amount of leakage has a huge impact on the energy efficiency of your home. Air leakage also degrades breathing air quality and depending on quantity and location can affect comfort, durability and safety of your home.
We use a blower door to figure out how leaky your house is. The blower door is a powerful fan that exhausts air from your house. This causes the air pressure inside your home to fall below the air pressure on the outside. As a result, outside air pushes against the house and finds ways to leak in.
Our blower door with its companion measuring gauges and computer is able to quantify both the volume of air that leaks in and out of your home as well as the combined size (in square inches) of leakage area.
Then, using tools such as our thermal imaging camera and smoke pencils, we investigate areas all around your house to identify areas of leakage and to recommend how these leaks could be addressed.
By using advanced diagnostic procedures, Smarthouse is able to achieve remarkable energy savings and comfort benefits for your home.