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Old 11-29-2007, 12:06 PM   #11
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That's odd, both ends have air but the middle has noting, there may be a good chance that the take off duct was not connected, this is a small piece of duct that is connected from the floor where the floor register is to the main or supply duct, also called supply air duct or discharge air duct. If so the material under the camper may have to be removed for inspection.

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Old 11-29-2007, 12:45 PM   #12
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Our 32B does the same thing the rear bunk room would get HOT! I just closed off 3/4 of the vent. another one of the vents is partially in the bathroom. I made a diverter out of some thin gauge aluminum to put most of it into the living area. our front bedroom always got warm so I left that vent alone and the one in the main living area never did put out much heat, niether did the one in the bathroom before I did my mods. I now have balanced heat in the trailer.

It`s like blowing through a straw, cut a hole in the middle of the straw and blow through it, you will likely not feel any air coming out of the hole. now block some of the airflow coming out of the end of the straw, you should now feel the air flowing out of the hole. a staright run heat duct works the same way. take a couple of phone books and block some vents you should feel the air coming out of the other registers.

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Old 11-29-2007, 12:52 PM   #13
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M Rimmer, I have the same problem in my camper with weak air flow in the front bed room, the rest of the camper is much stronger that's because the first air supply register is too close to the heating unit and the weak air supply is too far. There is no way to restrict the air flow from one end of the camper to the other with dampers like it is in most homes. Dampers are used to balance air flow to make it more even in an area. Air will take the easiest path to follow, so if the floor vents are not spaced correctly uneven air flow is common. There is more to this, such as CFM 's,static pressure and so on.
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Old 11-29-2007, 08:30 PM   #14
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Dodge guy that is right ,the straw effect is a good example, I was going to suggest this earlier today but, I didn't have time. With duct work in a home the duct work should exstand 6" past the last air defuser and then capped off this allows static pressure to build. As the air collects at the end of the duct work it starts to swril, and the air pressure increases, at this point the air has no where to go but out of the last defuser with force. If the last defuser is at the very end of the duct work there is no place for air to collect and then there is no static pressure, air flow is lost. I don't think anyone cares at the factory and they have a poor Q.C. program.
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Old 03-25-2009, 01:58 AM   #15
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I put vents with dampers in mine and it works great to balance the airflow.

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