A duct pressure test measures how much conditioned air your system loses. Energy Star says 20-30% can escape from leaks. If your test shows 4-5% loss, you're fine. At 20% or higher, sealing makes sense.
20 to 30%.
4–5% air loss.
About 20% air loss.
Another thing we do when people are not sure if they want to go ahead and do a duct sealing or not is we go ahead and send the crew out, do a pressure test on that duct system, which will give us a reading of how much air is being lost, and then at that point, the homeowner can make a decision. Yes, I want to go ahead with it. No, I don't want to go ahead with it. We've had both. Yeah, we've had both. So, you know, we've done the test before and, you know, it's come back 4 or 5%. It's not really worth it. Don't worry about it. And we've done tests before where it's come back 20% and we need to go ahead and do a dose in it. So if you're not sure and you don't have a technician out, we will come out, hook up the machine, do a test on it, see where we are. Because according to Energy Star, 20 to 30% of your air is being lost from the duct system.
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