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Old 07-11-2016, 09:10 AM   #15
NOAZRK2690's Avatar
2004 34' Classic S/O
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Kutztown , Pennsylvania
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Posts: 96
To answer some questions, Dometic redesigned the interior air box being used with the Blizzard NXT to reduce air noise by elimination of sharp corners, louvers, and so on. The redesign does a nice job quietly handling the increased CFM air flow.

I had two 15k BTU units installed because the 13.5k were not available at the time. It was a good move for me. I pressed a little cleaned out Keurig type coffee cup over the rear/bedroom temperature sensor to keep the direct cold air from blowing onto it, allowing the rear unit to stay on longer and cool the entire AS with one unit. I tend to run the A/C unit that is furthest from the area I'm spending time in when only 30 amps are available. If you check the specs closely, I think both units can be run at the same time on 30 amps if nothing else is drawing on the line however I haven't tried that yet.

There are no decibel specs posted for this unit, however they definitely are noticeably quieter then the Penguin I or II.

There is a drain kit available as an add-on. When installed, it easily connects directly to the existing AS tubing. All things considered, if you're planning to install a Blizzard it would be best to have about 4 to 6 inches of extra tubing and a connector fitting (90 degree) to eliminate any possible kinking. The only thing I don't particularly care for is that the kit is made of white vinyl plastic, so it is more visible. I plan to paint mine black.

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Old 07-11-2016, 03:55 PM   #16
Rivet Master

2014 20' Flying Cloud
Long Island , New York
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Thanks for the details.

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Old 07-11-2016, 04:06 PM   #17
Rivet Master
2016 30' Classic
Erie , Colorado
Join Date: Oct 2013
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For your original question it is a very very slight difference in speed. Hardly noticeable and can't see any difference in output. So I leave mine on Auto.
2015 Classic
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Old 09-22-2016, 01:30 PM   #18
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1969 25' Tradewind
Port Washington , New York
Join Date: Dec 2011
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Originally Posted by NOAZRK2690 View Post
Although my AS is not ducted, after installing the new Dometic Blizzard NXT air conditioner and two months experience with using them, I can report that there's no compressor noise inside the AS at all, only air flow through the newly designed interior ceiling air box. On high speed fan, they are about the same noise level as the Fantastic Fan on high speed. I've got no idea when the auto fan kicks on and off during the day or night. On the low setting, during the day, the unit trolls along quietly enough that it offers no distraction. Very happy with them so far.
Would you mind posting a pic or two of the a/c unit(s) on top of your trailer? I've been considering the lower profile Penguin or Mach 8 both for looks and to reduce drag, but sound is also a significant consideration for me.

Appreciate it!

"Eternal vigilance is the price of success."

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