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05-09-2011, 01:05 PM
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#1
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Montana Fan
Join Date: Feb 2006
Location: Cinnaminson
Posts: 197
M.O.C. #5316
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2nd AC unit?
Could anyone advise me as to which AC unit I should buy for the 2nd unit over the bed? What size should be sufficient as a stand alone since my 1st unit is 15K and ducted! Thanks!
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05-09-2011, 01:11 PM
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#2
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Montana Master
Join Date: Sep 2006
Location: Kelowna
Posts: 1,475
M.O.C. #6237
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We have dometic 13500 the same as the factory would have installed. We had it installed a year after we bought the Montana.
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05-09-2011, 02:29 PM
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#3
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,658
M.O.C. #9969
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13.5 K Penguin, lower profile. Tied into the existing ducts and Zone 2 on the CCC. Love it.
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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05-09-2011, 02:47 PM
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#4
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Montana Master
Join Date: Mar 2007
Location:
Posts: 2,156
M.O.C. #6920
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You also can do a search on this forum. There has been good advice given on 2nd AC's.
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05-09-2011, 06:19 PM
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#5
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Seasoned Camper
Join Date: Sep 2009
Location: rutherford
Posts: 68
M.O.C. #9691
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I have a portable AC unit in my rv as a second unit. It looks like a dehumidifier. It's small.. the only thing is you need to have the vent tubes out the window. Mine fits through one of the side window and doesnt let much hot air back in. Much cheaper than roof top ac. Try it!
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05-09-2011, 07:43 PM
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#6
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Montana Master
Join Date: Apr 2009
Location: Murrieta
Posts: 5,816
M.O.C. #9257
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My second unit is slated for the prepped area in the master bedroom. I plan a 13,500 to keep power down and I think this is enough to keep the front of the rig cool while the existing works on the middle and rear of the rig. I also think that's enough to have some of the overflow into the middle area to help out the rear unit.
I'm not sure if I would get the low profile because at last check the 2nd air is on a downward slope of the roof and I might need a more expensive, same rating 13.5K unit.
While power is wired to the prepared area, there is no ducting or control wiring and I plan to use this as a discrete unit and not tied into the existing control panel or ducting.
Now all I need is some money.... and to finish the multitude of projects at the stickhouse (which is sucking up the funds so far.
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05-10-2011, 01:00 AM
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#7
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Montana Fan
Join Date: Sep 2009
Location: Hanover
Posts: 335
M.O.C. #9710
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I decided on the 13.5K Penguin since the trailer was prewired for this unit to interface with the thermostat. Also had the heat strip added.
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05-10-2011, 01:56 AM
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#8
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Montana Master
Join Date: May 2010
Location: Tampa
Posts: 532
M.O.C. #10378
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Low Profile 13,500 Penguin not tied to duct work. Only really needed when the temps get over 90 which is May to November here. As mentioned above, if you leave the bedroom door open while it is running, it helps considerably to quick cool the unit when you first arrive at your site.
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05-10-2011, 01:57 AM
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#9
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Montana Master
Join Date: Mar 2003
Location: Albuquerque
Posts: 703
M.O.C. #235
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I purchased a low profile Carrier 13.5 from tweetys best price that I found. I installed it myself. I mainly use it to cool down after a days travel or when down south when its hot and muggy I just turn the switch and she runs till I turn it off very cold in no time.Good Luck Jack
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05-10-2011, 04:39 AM
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#10
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Montana Fan
Join Date: Jul 2007
Location: Troy
Posts: 152
M.O.C. #7406
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We have a 13500 Dometic we use it as much or more than the one in the rear. It is hooked to the duct work so run it by its self if we hsve company or are watching tv. Jim
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05-10-2011, 06:07 AM
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#11
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Montana Master
Join Date: Feb 2008
Location: Winthrop Harbor
Posts: 1,831
M.O.C. #8160
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We also have the low profile carrier with the heat tape. It really does a good job of cooling down the front and helps with the rear as well. It is not ducted and is somewhat noisy, but it's usually running during the day when we are out.
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05-11-2011, 03:47 AM
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#12
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Montana Fan
Join Date: Feb 2006
Location: Cinnaminson
Posts: 197
M.O.C. #5316
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Thanks for all the input. I appreciate it. After much thought, I believe I will probably go with the 13500 Dometic. With my fifth wheel (see signature), my original AC (15K) unit is still on the flat part of the roof. The roof declines right after that towards the back, Therefore, my proposed 2nd unit will not be any higher than my first (so I don't need the low profile). Again, thanks for your input!
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05-17-2011, 02:50 PM
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#13
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Montana Master
Join Date: Nov 2002
Location: Oceanside
Posts: 20,028
M.O.C. #20
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Ours is a low profile Coleman Polar Mach, 13.5. Works well but I wish it were ducted. Our year Montana did not have ducting for the front AC.
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05-17-2011, 04:27 PM
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#14
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Montana Master
Join Date: Jun 2010
Location: Colorado Springs
Posts: 3,335
M.O.C. #10496
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Good information as we are considering adding a 2nd AC where the bedroom vent is now. It's pre-wired for it. The current AC will NOT cool the entire RV.
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2010 3150RL
LevelUp, Dual 6 volt batteries, Progressive Industries EMS HW50C, Honda EU2000i Generator, Bridgestone Duravis R250 tires, Torklift Glowstep Revolution Stairs, LED Tail lights
2015 RAM 3500 Laramie SRW LB CC Cummins 6.7L Aisin Trans B&W RVK3600
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05-18-2011, 01:55 AM
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#15
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Montana Master
Join Date: Mar 2010
Location: Land O Lakes
Posts: 2,783
M.O.C. #10246
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13.5 works well for us....
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05-18-2011, 04:54 AM
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#16
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Montana Master
Join Date: May 2011
Location: Fayetteville
Posts: 4,200
M.O.C. #11401
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We had 13.5 added in purchase are very pleased
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05-23-2011, 09:52 AM
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#17
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Montana Fan
Join Date: Dec 2010
Location: North Port
Posts: 271
M.O.C. #10954
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In a word. DO IT.
If you are planning on staying in any of the southern states in the summer months it is money well spent in my opinion.
Ours is a 15k coleman mach.
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2021 Montana 3121RL w/ Cobalt Paint
2019 F-450 w/ airbags and 25k BW Companion
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