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Old 06-25-2014, 07:31 AM   #1
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Advice on Class A with 2 a/c or 3 a/c units

Good morning everyone. I am new to this site but confess I have followed your threads on different topics. My husband and I are looking at purchasing a new RV (well new to us). The choices are a 2012 40 ft. Entegra Aspire with 2 a/c units. Or, A fleetwood 40x with 3a/c units. The Entegra has aqua hot and a polar pack insulation which is a nice perk but I am concerned about only having 2 a/c units. Anyone had to make a choice like this before? Any advice would be great! I live in Texas so usually hot here!

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Old 06-25-2014, 07:33 AM   #2
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We had 2 ac units on our RV in Rockport tx and it was fine.

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Old 06-25-2014, 07:42 AM   #3
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What are the Btu ratings. On the ac?
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Old 06-25-2014, 07:50 AM   #4
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Also keep in mind that the Entegra is one of the most well insulated rigs on the market which would make a very large difference in comfort levels.
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Old 06-25-2014, 07:58 AM   #5
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Insulation, dual pane windows, etc. are considerations, as are awnings on all windows. Than also the size / cooling capacity of the air conditioning units. Or more to look at than simply the number of units. I think you will find either coach to cool ok.
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Old 06-25-2014, 08:05 AM   #6
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Note that I have a 43' MH. It has 4 slides and can open up nicely thus a fair amount of space to heat & cool. I would think a 40' unit will have a better time at keeping you comfortable. Make sure you know the type of A/C units that are on the unit. There can be a big difference between the 13.5M & 15M units. I think that our insulation values are very close/the same as the Entegra so we are fairly comparable.

So far this year we have encountered 95* weather and no shade most of the time. Our 2 A/C units (15M Penguin) seem to be doing the job. When the forecast is in that area or above we make sure that we put both unit fans on HIGH instead of AUTO.

Pay particular attention to where the temp sensors in the coach are. To be honest, our #1 sensor for the living room area is on the thermostat and in a bad place. They located in the short hallway between the galley and hallway back to the bedroom. It is subject to being exposed to air coming out of a vent. This fools the AC into thinking it is cool enough to shut down thus the parts of the coach up front get warmer. By running the fans on high I think the consistent air flow helps keep that hallway temp a tad more representative of the front. However, during the day I set the front temp to 70* and I normally see about 73*-74* where I sit. On cloudy days I can bump that up a couple degrees.

BTW...I have one of those clocks with a temp readout on a wall and it will typically show 80*-84* depending on the amount of sun on that side. I am planning to have a recliner that can be pulled away from that wall installed this week. The temps are not my primary reason for tossing out the jackknife sofa but I think it will be a nice side benefit.

If I let the temps get out of control before I do all of this it will recover but it will take a while. If temps were exceeding 100* under similar conditions I would wonder if it would recover into my more comfortable range while the sun was set.

I suppose a 3 A/C unit would help under extreme conditions. It would probably recover faster too. If I have seen similar specs correctly the down side is you need a larger generator to run all 3 and of course the 3rd unit. That is more weight on the front axle and you will want to ensure this doesn't affect you in any serious manner.
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Old 06-25-2014, 08:13 AM   #7
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As said above,the Entegra like the Travel Supreme before them were very well insulated. Two will be fine on that coach, not so with other makes.
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Old 06-25-2014, 09:58 AM   #8
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Originally Posted by becks View Post
As said above,the Entegra like the Travel Supreme before them were very well insulated. Two will be fine on that coach, not so with other makes.
Another broad brush statement that is not quite true. I have 2
13.5 Colemen A/C's, travel in the Deep South in the summer and have stayed comfortable with ordinary procedures.
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Old 06-25-2014, 11:25 PM   #9
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Talking Thank You!

Thank you for everyone for your advice!! We are going to look at the units and hopefully take a vacation in a new rv!!

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