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Old 05-25-2014, 01:20 PM   #1
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Home installing roof A/C

I didn't include air with my build options. Thought I could save a couple hundred bucks doing it myself, when I was ready. We know the Escape roof is made ac ready.

Another thing was, don't like seeing a big box on my roof. I have read complaints about the factory supplied units being too noisy for sleeping. Of course, you also can't dry camp off battery power.

I'm liking the Coleman Polar Cub low profile model. Now feeling close to ready.

They claim low power consumption, cooling at 11.1amps. Their exterior shroud is 10.63 inches high. I see some dealers sell it with the interior ceiling assembly included, and some mention that's a separate purchase. The prices will vary accordingly, shipping costs are also a very big bite. Buyers must beware.

As a potential buyer it surprises me to see purchase costs much higher than expected. Could I have outsmarted myself? Regardless, the Coleman Polar Cub 9200 BTU is looking good right now. Does anyone have experience or an opinion on this?
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Old 05-25-2014, 01:59 PM   #2
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My only suggestion is to be careful which model 9200 Polar Cub you purchase. The original or older version is no longer made, and I believe it has been replaced with the Coleman-Mach 8 Cub.

There were many complaints when Casita switched over to it with noise, mostly outside - it sounded like a jet engine & was louder than a non inverter generator. The manufacturer switched to a different fan, and sells the replacement for the loud versions for around $30.00. I'd want to make sure that the one I purchased had the new, quieter fan, and even then, I'd want to listen to one to be sure it was quiet enough for me...
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Old 05-25-2014, 02:07 PM   #3
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Check the Casita forum - join if you are not currently a member: http://www.casitaforum.com/invboard/topic/15327-mach-8-ac-discussion/

I was going to get the Mach 8 until I read this thread last fall. The fix may not be all that quiet.
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Old 05-25-2014, 02:17 PM   #4
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I have had the polar cub in 2 of my trailers, one being an Escape. The upside is the the ability to operate off a 2000 watt generator, otherwise there is not much differences between it and other units, other than price. It can be ordered with a heat strip, but you will need hookups. The Dometic 11,000 ETI installs with the digital thermostat that controls both the furnace and a/c which is a nice feature, something else to consider as that can not be done with the polar cub.
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Old 05-25-2014, 03:05 PM   #5
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Originally Posted by cpaharley2008 View Post
I have had the polar cub in 2 of my trailers, one being an Escape. The upside is the the ability to operate off a 2000 watt generator, otherwise there is not much differences between it and other units, other than price. It can be ordered with a heat strip, but you will need hookups. The Dometic 11,500 ETI installs with the digital thermostat that controls both the furnace and a/c which is a nice feature, something else to consider as that can not be done with the polar cub.
Also something I learned recently. Getting the digital thermostat is the ONLY way to have the AC turn off not only the compressor but the fan. The manual units only cycle the compressor but leave the fan running all of the time which contributes to the noise. Of many of the options to choose from at ordering time, I wish we had a system that would cycle the fan as well as the compressor.
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Old 05-25-2014, 04:06 PM   #6
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Myron,
I have the polar cub 9200 in my trailer it is the older model which escape installed during the build last year. Definitely read the suggested posts on the casita forum about the newer Mach 8 before buying one. Casita has used the coleman polar cub 9200 for years, however the newer Mach 8 has received many noise complaints. Coleman has redesigned the fan to help quiet it down. Some folks think it is ok now others don't.

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Old 05-25-2014, 05:10 PM   #7
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I see Escape currently sells the Dometic 11,000 BTU as an (installed complete, I presume) $875 option.

This is, I guess, the same (low profile (under 10") Dometic Penguin II sold online at Camping World, "configured," for $747.49 + $78 shipping or... on sale (un-configured??) From $846.99 plus freight starting at $88. () Ya. ?! Well, price-shmice.

No mention at Camping World if configured means including what's needed inside the trailer. Dave, dare one assume it does? Tech, that advice on what the control switches control and not, has resonated. Thanks.

My interest in Coleman Cub Mach-anything has cooled off. But fellas, seriously, if you have this Dometic Penguin II model I would love to hear how it's working for you, noise-wise, et-cetera. Like Uncle Phil always told me, pick the sharpest knives in the drawer whenever doing brain surgery.

.......OK, I heard that. I'll call them.
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Old 05-25-2014, 05:20 PM   #8
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You also need to consider the exchange rate when comparing the numbers.
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Old 05-25-2014, 05:45 PM   #9
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The digital thermostat set up is really nice, not only for the a/c, but the heat is more even, no hot and cold swings from the old fashion metal spring thermostat.
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Old 05-25-2014, 07:09 PM   #10
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The digital thermostat set up is really nice, not only for the a/c, but the heat is more even, no hot and cold swings from the old fashion metal spring thermostat.
Wouldn't wiring need to be run from the AC to the thermostat?
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