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04-09-2008, 06:30 AM
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#1
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Junior Member
Join Date: Apr 2008
Location: Jupiter, FL
Posts: 6
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13.5K vs. 15K AC unit
I am getting ready to order an 831KRSS was wondering if there are any disadvantages getting the larger AC unit. I will be doing most of my camping in South Florida so it seems like a no brainer, but I would appreciate any input.
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04-09-2008, 06:32 AM
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#2
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Senior Member
Join Date: Apr 2007
Location: Justin, Tx
Posts: 2,671
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Welcome to FRF!
Hmmmmmmmmm........... South Florida?? Bigger A/C sounds better to me.
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04-09-2008, 10:17 AM
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#3
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The Jolly Mon
Join Date: Jul 2007
Location: ND...HELP!
Posts: 1,691
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welcome....go large!
__________________
Pete (Jolly Mon)
2018 Wildwood Grand Lodge 42 DLTS
-Seasonal Space, Northern MN.
-2017 Sylvan 8522 LZ LES/115 Merc/Sea Legs
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04-09-2008, 10:44 AM
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#4
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Site Team
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 9,850
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My GS-280 has the 15K ducted and here in the south during the hottest part of the summer we're glad it does. I wouldn't even consider the smaller unit on the 831krss.
__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
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04-09-2008, 01:10 PM
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#5
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Senior Member
Join Date: Sep 2007
Posts: 3,260
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Do you self a favor, go big. I just had a 13.5 Dometic and it is useless. I had a Carrier 15k installed, there is more air flow and not as load. Air flow is based on CFM's. I have an 8314 ss TT.
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04-09-2008, 06:23 PM
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#6
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Senior Member
Join Date: Sep 2007
Location: British Columbia
Posts: 156
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I agree,
GO BIG! I too had the 13.5 on my last trailer. Did not cool down enough. If you are camping in Florida (my wife's home state) you will want the 15K AC.
__________________
OREGONCAMPER
2008 Rockwood 8317SS - 2010 F150
2013 Camping Days: 22
2012 89 2011 50 2010 61
OregonCamper's Pics click here
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04-09-2008, 06:23 PM
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#7
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Junior Member
Join Date: Apr 2008
Location: Jupiter, FL
Posts: 6
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Thanks for all the input...I'm ordering the TT in the morning with the 15K.
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04-23-2008, 07:37 AM
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#8
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Member
Join Date: Apr 2008
Location: Texas A&M area
Posts: 78
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yes go with the bigger A/C... not much difference in cost.
__________________
Living the good life Rving and enjoying it .
irv2.com National rally... Dundee, Ohio
June14-20, 2009
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07-15-2008, 09:58 PM
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#9
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Junior Member
Join Date: Jun 2008
Posts: 2
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I just purchased a 831 Flagstaff which comes with a 13.5 btu ac unit. I thought I would need a bigger unit since this was a 31 footer and I too live in south Florida. I went to the keys on July 4th weekend and can't expect it to get any hotter in the country unless I travel to death valley and I must say, I had the ac unit set on 70 and woke up freezing. I thought about getting the larger unit but after that weekend, there will be no need for that. I think its always a good idea to have a larger unit so that a smaller one won't work as hard, but since the one that came with the camper was a 13.5, no reason to go higher. Save your money for fuel because all I was getting was 7 to 8 mpg with my Dodge ramm hemi 5.7
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07-16-2008, 04:24 AM
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#10
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Senior Member
Join Date: Sep 2007
Posts: 3,260
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I am glade to hear you are satisfied with your 13.5. When the sun go's down and everything starts to cool off the heat load is reduced on an RV, then the A/C can keep up with demand. For every person in your camper by day that is moving around they are producing approx 400 BTU's each along with a TV that is on a microwave or any other heat producing equipment that my be on adds to the load, then factor in the sun and heat load from the out side. The hottest time of the day is approx 5:00 pm in the Summer time, so the A/C system has some work to do. At night everyone is a sleep and body temps drop, no heat producing equipment is on and the TV is off and the heat load is reduced on the out side of the camper because the sun is gone. Hot air moves to cold, so when you remove heat from in side a box ( camper) all that heat from the out side is trying to get in side. So I suggest in very hot climates, add curtains to the windows, install some kind of insulation in the sky lights and set the fan control for the A/C to ON so that air keeps moving and reduces hot spots in the camper and most important keep the Filter clean.
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07-16-2008, 11:23 AM
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#11
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Senior Member
Join Date: Mar 2008
Location: East Stroudsburg, PA
Posts: 131
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I have a 40 foot cherokee and have the 13.5k unit ducted. It was well over 90 degrees this passed Saturday and my fiance had it FREEZING in there....lol
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07-17-2008, 12:58 PM
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#12
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Senior Member
Join Date: Sep 2007
Posts: 3,260
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Quote:
Originally Posted by SSport
I have a 40 foot cherokee and have the 13.5k unit ducted. It was well over 90 degrees this passed Saturday and my fiance had it FREEZING in there....lol
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Just woundering, how many slide outs do you have on your 40' footer? and here I thought 34' was big
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07-28-2008, 03:24 PM
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#13
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Senior Member
Join Date: Mar 2008
Location: East Stroudsburg, PA
Posts: 131
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Quote:
Originally Posted by rockwood06
Just woundering, how many slide outs do you have on your 40' footer? and here I thought 34' was big
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I have two. There was an option for a 3rd but didn't want a front slide out cutting into my deck space....lol
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07-28-2008, 04:33 PM
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#14
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Cyber Phrenologist
Join Date: Jun 2007
Location: Southern Crescent
Posts: 1,806
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And while you're at it: (regardless which AC you get)
Get the tinted windows.
When you get the unit home go around and plug all the drafty places with "great stuff" or some other type of sealant.
Get some of those sponge pillows that you stuff up into the overhead vents.
Enjoy!
__________________
KU4OJ
2008 (or is it 2009?) Rockwood 8280SS - 2022 F-250 7.3L
Lot's of mostly Kenwood radios
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07-28-2008, 08:25 PM
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#15
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Grape Escape
Join Date: Sep 2006
Location: Southern Ontario
Posts: 774
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And don't run fantastic fan with air on. Last weekend I could not understand where all the cold air was going. After turning off bath fan it cooled in no time. Must have sucked cold air out as fast as it went in.
__________________
2008 Cardinal 30RKLE 5th wheel sold
2006 Rockwood 2607, 2001 Traillite
55 nights 2009, 53 for 2010
44 for 2011, 38 for 2012, 35 for 2013, 51 for 2014
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07-28-2008, 08:29 PM
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#16
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Senior Member
Join Date: Sep 2007
Posts: 3,260
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Quote:
Originally Posted by radio
and while you're at it: (regardless which ac you get)
get the tinted windows.
When you get the unit home go around and plug all the drafty places with "great stuff" or some other type of sealant.
Get some of those sponge pillows that you stuff up into the overhead vents.
Enjoy!
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yes, that is another good suggestion. There is a list of things to help reduce the heat load.
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06-19-2019, 12:59 AM
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#17
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Member
Join Date: Jan 2014
Location: Plaquemine
Posts: 53
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Quote:
Originally Posted by Duffman79
I just purchased a 831 Flagstaff which comes with a 13.5 btu ac unit. I thought I would need a bigger unit since this was a 31 footer and I too live in south Florida. I went to the keys on July 4th weekend and can't expect it to get any hotter in the country unless I travel to death valley and I must say, I had the ac unit set on 70 and woke up freezing. I thought about getting the larger unit but after that weekend, there will be no need for that. I think its always a good idea to have a larger unit so that a smaller one won't work as hard, but since the one that came with the camper was a 13.5, no reason to go higher. Save your money for fuel because all I was getting was 7 to 8 mpg with my Dodge ramm hemi 5.7
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Get 14 Mpg pulling my 33 ft fifth wheeler. 2018 Cummins 6.7
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06-19-2019, 01:02 AM
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#18
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Member
Join Date: Jan 2014
Location: Plaquemine
Posts: 53
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Quote:
Originally Posted by KAISOR
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