Air Flow Inconsistant


Old 07-28-12, 07:37 PM
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Air Flow Inconsistant

I live in a double wide manufactured home. We have a central air set up in our house. The air blows really well on one half of the house and barely blows on the other side. If I close vents on the side of the house that blows well, it will slightly increase how much blows on the other side. Any ideas??
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Old 07-29-12, 06:54 AM
airman.1994's Avatar
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Easy answer hard solution. You have duct issues. The duct is not designed correctly and most likely not installed correctly. Hot and cold spots are always caused by duct issues.
Old 07-29-12, 07:10 AM
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most likely you have what I see on double wide homes all the time. On the same side as your furnace is where your trunk line is and travels all down that side and the other side has 5 or 6 inch ducts that connect to the main trunk line. However, the first thing to check is the connection in the middle of the home where the 2 halves were put together when the home was installed. You will NEVER have good air flow out of the opposite side of the home unless the duct work is redone with a main trunk line put down the middle of the home and then ducts on both sides are connected to it.
Old 08-11-12, 05:10 AM
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Always start with the easy things and then proceed to the harder/more expensive things. First, crawl under the home and inspect the duct work to see if all is properly connected together and not leaking air. If all is well from that aspect, then you need to have an experienced duct professional assess the ducting design. As hvactechfw mentioned, poor duct design is often a habitual problem with mobiles. Strangely, it doesn't have to be that way, but some builders are apparently still hiring incompetent HVAC people for this important task.
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