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Old 02-07-2017, 07:33 PM   #1
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13.5K BTU ducted AC vs. 15K BTU A/C w/Heat Pump

I hate to ask something that's probably been asked a hundred times, but I did a search and nothing came up.

Is there that much of a difference between the 13.5K BTU ducted air conditioner and the 15K BTU A/C with heat pump to justify the extra cost?
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Old 02-07-2017, 08:48 PM   #2
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13.5K BTU ducted AC vs. 15K BTU A/C w/Heat Pump

Other than the obvious, the 15k will provide better cooling and the heat pump will heat the coach when outside temps are down to about 38f thus saving on propane. The heat pump will remove unwanted humidity during the cooler days. Mine came with it so I do not know the option up charge. Using and knowing what I know, I would want the 15k unit.
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Old 02-09-2017, 10:08 AM   #3
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Other than the obvious, the 15k will provide better cooling and the heat pump will heat the coach when outside temps are down to about 38f thus saving on propane. The heat pump will remove unwanted humidity during the cooler days. Mine came with it so I do not know the option up charge. Using and knowing what I know, I would want the 15k unit.
We opted for the larger 15K unit since we knew in advance that our 3011 (32ft) is large and you can never have enough cooling in these things. We were in a couple of campsites this past summer that were in full sun and 90+ outside and the unit would never get below 80 degrees inside although it was not that bad really since the AC takes the humidity out. At night, it make not make much of a difference other that the larger unit would get it down to a comfortable sleeping temp quicker. The additional benefit was the heat pump. We did end up using it a few times more than expected since a lot of our camping is in the mountains and at night it can get cool. There were a few nights this summer were if got down to high 40's and the heat pump worked great while not consuming any propane.
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Old 02-09-2017, 01:59 PM   #4
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We opted for the larger 15K unit since we knew in advance that our 3011 (32ft) is large and you can never have enough cooling in these things.
Same with our 30 foot GTS. I'm thinking about adding a second A/C unit already.

Another plus of the 15KBTU is the heat feature is a very nice test load for when I'm running the genset monthly at the storage yard...
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Old 02-09-2017, 08:10 PM   #5
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Isn't bigger always better lol. I love having the heat pump it saves propane and does a good job of keeping the rig warm with temps as low as 40 degrees outside. Its a win win.
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Old 02-09-2017, 08:26 PM   #6
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Isn't bigger always better lol. I love having the heat pump it saves propane and does a good job of keeping the rig warm with temps as low as 40 degrees outside. Its a win win.
Thanks all. It's a $350 upgrade, so I was just wondering if the 13.5K A/C just doesn't do that great of a job or what. From all your comments, it seems the 15K A/C with heat pump is worth the upgrade.
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Old 02-09-2017, 09:02 PM   #7
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Our experience has been that you never seem to have to much A/C capacity on really hot days. Our trailer also has the heat pump option and we use it a lot more than I thought we would. I would pay the up charge just for the heat pump.
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Old 02-10-2017, 01:47 PM   #8
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I'm in the process of pulling my two 13.5 dometic penguins, both working fine, to replace with the 15K heat pump version. I rarely use the A/C (my wife makes me design trips to cooler destinations), but have had several occassions when these two units didn't cut the mustard.

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Old 02-10-2017, 02:24 PM   #9
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Your signature says you are based in "Central Coast California". As you know, there are a lot of places in CA that get hot during the summer months. You will appreciate the 15K unit during those days.

I once had a DP that came with 2 13.5K AC's from the factory. They could not keep up with the Arizona/Nevada summers. When one AC broke under warranty, I paid the difference and had the service company replace the 13.5 with a 15. Wow, what a difference.

So, when I ordered my current Sunseeker, I opted to upgrade to the 15K. I haven't been out in the desert in summer with this coach so I am anxious to see how cool it gets inside.
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Old 02-10-2017, 02:29 PM   #10
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I am a strange one...I was getting 2 units(if you have that option I advise that also). I was very scared of the 15K Dometic units as they had many coil problems(supposedly fixed now) and supposedly the 13.5K units didn't suffer(different plant or run or something), so I chose the 13.5K units(2) and ended up with Coleman units...better I dunno. I was just happy it wasn't Dometic. Good luck with your choice and if only getting one unit see if the have a 25-30K most need it. HA HA
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