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Cecilt's avatar
Cecilt
Explorer
Aug 30, 2013

Only 4 AC ducts in 36' TT

We are considering an Outback 323bh. When i saw the unit I was surprised to see there were only 4 AC ducts in the ceiling- 1 in the bunk room, 1 in the living area, 1 in the bathroom and one in the bedroom. It is a 15k AC. The bedroom is wired and braced for a second AC but don't feel this expense is necessary if the 15k can handle it.

I looked at our 34' Rockwood TT 2 slide bunkhouse and we have 2 ducts in the bunk room, 2 in the living room and 2 in the bedroom 2 feet less in Length and 2 more ducts.

Here is a link to the Outback layout.

http://www.keystonerv.com/outback/models/323bh/model-mobile

Of course the salesman said well if keystone designed it with 4 they must have tested it and low it works good. Yea right. What does everyone think?
Seeking Advice

17 Replies

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  • scbwr's avatar
    scbwr
    Explorer II
    Aug 30, 2013
    Assuming that the unit can cool the trailer with 4 ducts, the thing to check would be whether there are cool or hot spots in a given area. So, if possible, check the AC on a good hot day, and while the unit is running, sit or stand in all different areas where people would normally be and see what the comfort level is. Another factor to consider is whether you will be spending a lot of time in very hot locations where the AC could be a problem....and that's hard to do unless it's a hot...as in the 90's with bright sun when you check the AC operation. Otherwise, it's down to seeing if you can get responses from owners that have given their unit a real workout in hot temps.
  • Dog_Folks's avatar
    Dog_Folks
    Explorer II
    Aug 30, 2013
    Our 27 foot outback has a 13.5K A/C unit and 5 outlets.

    It is really more than enough. We can get it so cold you could use it to hang meat.
  • therink's avatar
    therink
    Explorer
    Aug 30, 2013
    My 37' Sydney Outback fiver with one 15k ac unit also has 4 ceing duct outlets and it cools the unit just fine. I ended up partially closing off the bathroom duct opening to divert more air flow to the front bedroom.
    Steve
  • Chris_Bryant's avatar
    Chris_Bryant
    Explorer II
    Aug 30, 2013
    My house only has a single outlet in each room, and 4 is the minimum required. As long as the back pressure is within limits, it should be fine.
  • sch911's avatar
    sch911
    Explorer
    Aug 30, 2013
    I think you mean 4 A/C outlets. Ducts are the channels that the air moves in to get to the outlets. And I agree that is very few for a RV of that size.
  • I_am_still_wayn's avatar
    I_am_still_wayn
    Explorer
    Aug 30, 2013
    If that is a concern, then have them plug in the unit, turn on the A/C and let it run. Test the air flow and cooling capacity. If you are satisfied, then OK. As a previous poster said, more vents (openings) may not mean more air flow.
  • VintageRacer's avatar
    VintageRacer
    Explorer
    Aug 30, 2013
    The single AC unit is only going to move around 350 CFM of air, so the number of ducts in a space doesn't really matter - the amount of air is so low. Just run the AC and see what the air flow balance is like, that probably matters more than the number of ducts. I think a single AC is cutting it fine if you have more than two people on a warm day.

    Brian

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