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Old 10-12-2016, 10:42 AM   #1
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Vacuum door


Is there a place where you can rent one of these if you really wanted to test the home?

I bought a Flir 1 because it was cheaper than trying to rent a camera.
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Old 10-12-2016, 12:31 PM   #2
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Re: Vacuum door


Not sure here. Pretty large and unyielding equipment at that. Also requires skill to set up and calibrate.

You are probably going to need to just get an audit if you want that data.
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Old 10-13-2016, 07:58 AM   #3
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Re: Vacuum door


Hi knot,
The blower door test is primarily used to put a number on the leakage. Searching for leaks with your IR camera can be accomplished by using your current exhaust fans, bath fan, kitchen fan, dryer, and any window fans you have. Even a box fan sealed in the front door with plastic will work. Even when I use my blower door for leakage testing I do not run it at full speed.

The trick is to have a differential temperature between inside and outside. My Flir can be functional with just a few degrees but I really prefer 20 or 30 and I like it cold outside. If you allow the fans to run for 10 or 15 minuted the cold indications will grow.

In many cases you just shotgun the air sealing process by sealing known trouble areas, like the top of the foundation, electrical boxes, recessed lights and such. I'll add a link to help your hunting.
https://www.energystar.gov/ia/partne...ide_062507.pdf

If however, you actually want that leakage number, the CFM50, then best to call an energy auditor as windows suggested.

Also, when depressurizing the house, shut off all combustion appliances to be sure they do not backdraft.

Bud
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Old 10-14-2016, 06:03 PM   #4
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Re: Vacuum door


Thanks. I will see about getting some sort of energy evaluation.
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