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Old 05-05-2015, 03:16 PM   #1
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03 Magna 42 Air Conditioning

New to Rv's, forum, thread, etc.
Looking strong at 03 Magna but it has only 2 a/c units. Anybody with experience with this? We are in hot, humid south Texas.

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Old 05-05-2015, 03:39 PM   #2
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that was all they were. offered with. from what i have been told its not a problem to add a third like the affinity came with. all the factory things are available to put one one.

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Old 05-05-2015, 05:02 PM   #3
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Big difference between the Affinity and Magna back in those years. As long as both ACs are working, you will be OK most of the time--the Magna is well insulated like the Affinity. The only time we needed all 3 roof ACs were in Las Vegas with 120 degree outside temps. Another negative on that and earlier year Magnas is the tiny (for a 12-liter engine) fuel tank of only 110 gallons. The Affinity had 164 gallons.
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Old 05-05-2015, 06:28 PM   #4
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I travel the southwest in the summer in my '03 Magna with two roof AC. I have never had a problem keeping the coach cool. Both units run continuously but the temps is comfortable in the mid 70s on a hot humid day.

When traveling the Magna and Affinity are very comfortable with both dash and rear chassis air. I never have to run generator and roof AC. My dash air is 19K BTU and the rear is 13.5K BTU. Very nice.
George in Birmingham
'03 Magna 6298
42' Resort
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Old 05-07-2015, 02:01 PM   #5
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The 3 airs is very nice to have when your coach is hot inside. It might not be necessary to have three, but in S Texas there will be a lot of times you wish you had three.

If the coach has set for a while with the air off and it gets hot inside 3 units make for a much quicker cool down.

We have three.
B Bob
Country Coach 42' Affinity
2013 Jeep Wrangler Unlimited
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Old 05-08-2015, 07:39 AM   #6
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I have an 06' Magna with 3 AC's. Not having experience with two I can't say how difficult it would be to add, but they obviously did it later. I run all 3, but i can keep the thermostats set higher so that they all don't have to run so hard. That's really the only advantage I can see.
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Old 05-11-2015, 03:49 PM   #7
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Thanks for all the feedback. I think I will search on for a 3 a/c coach.

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