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Old 02-21-2018, 11:28 AM   #1
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A/C Upgrade Question

I'm set to pick up my new 2016 X254 next Tuesday (a brand new leftover on a dealer lot in Michigan). I saw where an upgrade was available on the A/C unit from a standard 13,500 BTU to a 15,000 BTU. If it's possible for a dealer to swap out such a unit, my quesrion is this... is the extra 1,500 BTUs make a difference? I had a 13,500 BTU unit on my pop up and it was more than sufficient. My pop-up extended to 20 feet in length and my new camper will be closer to 30 feet in length. Thanks!

Jerry

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Old 02-21-2018, 12:32 PM   #2
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I've had both, and unless your going to be camping in high heat areas I don't think you will see any difference. In some respects the 13,500 is better in high humidity areas. It will run a little longer which will take more humidity out of the RV.

Good Luck with your new RV.
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Old 02-21-2018, 12:40 PM   #3
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I've had both, and unless your going to be camping in high heat areas I don't think you will see any difference. In some respects the 13,500 is better in high humidity areas. It will run a little longer which will take more humidity out of the RV.

Good Luck with your new RV.
Thanks for your response wags999. That makes a lot of sense. That 13,500 unit sure was enough in the pop-up. Sounds like I'll save the upgrade money for other goodies.

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Old 02-21-2018, 01:34 PM   #4
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We had the 13500s on are other camper worked fine. New camper has 15000s they need 2900 watts to start them. We do mostly dry camping and at around 7000' in the summer. And at high elevation they lose about 23% of that power.Wish we had done more research before ordering the Champion 3500 #100162.Now I need a second 3500 so the DW can have ac this summer!Thanks
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Old 02-22-2018, 01:04 PM   #5
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We had the 13500s on are other camper worked fine. New camper has 15000s they need 2900 watts to start them. We do mostly dry camping and at around 7000' in the summer. And at high elevation they lose about 23% of that power.Wish we had done more research before ordering the Champion 3500 #100162.Now I need a second 3500 so the DW can have ac this summer!Thanks
I don't have a generator and don't know exactly when we may start hitting elevations higher than 600'-1,000' above sea level here in Michigan. I guess I'm curious why elevation starts to reduce electrical output on generators (if I read that correctly). I'm sure there's a thread here somewhere on the forum but I never had reason to research it until you brought it up. However, my inquisitiveness may prompt me to do so.

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Old 02-22-2018, 01:22 PM   #6
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I don't have a generator and don't know exactly when we may start hitting elevations higher than 600'-1,000' above sea level here in Michigan. I guess I'm curious why elevation starts to reduce electrical output on generators (if I read that correctly). I'm sure there's a thread here somewhere on the forum but I never had reason to research it until you brought it up. However, my inquisitiveness may prompt me to do so.

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According to Champion Generators it has something to do with the air density!We do not really know much about it! Thanks
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Old 02-22-2018, 01:44 PM   #7
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Personally I would not consider upgrading. We have a 13500 in our HTT. It is about 20' closed and 30' when open. The tent ends are not as well insulated as the TT walls, and it has no issues keeping the TT cool.
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Old 02-22-2018, 01:53 PM   #8
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I believe I'm going to leave well enough alone and just leave the 13500 BTU unit on the roof. I'm not even sure a dealership would trade those out or if that's something that has to be considered a factory option when ordering. Since this is a brand new leftover 2016 X254, it's not like we've been waiting for this unit after ordering it.

The 2010 Jayco M-1007 pop-up I had with a 13,500 BTU AC was more than sufficient when expanded to 20 feet during use. That was also with canvas and not a hardtop. I really appreciate everyone's input here and it has solidified in my mind that I'll be good to go.

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Old 02-22-2018, 02:39 PM   #9
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I don't have a generator and don't know exactly when we may start hitting elevations higher than 600'-1,000' above sea level here in Michigan. I guess I'm curious why elevation starts to reduce electrical output on generators (if I read that correctly). I'm sure there's a thread here somewhere on the forum but I never had reason to research it until you brought it up. However, my inquisitiveness may prompt me to do so.

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Higher altitude means thinner air and less oxygen. When you have less oxygen, there is less fuel injected for the same air/fuel ratio. That ultimately means less power made from a gas engine. This applies to cars/trucks etc although things like turbos can help reduce the effect.
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Old 02-22-2018, 02:55 PM   #10
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Higher altitude means thinner air and less oxygen. When you have less oxygen, there is less fuel injected for the same air/fuel ratio. That ultimately means less power made from a gas engine. This applies to cars/trucks etc although things like turbos can help reduce the effect.
I guess my thought on the generator was this. As long as it was running at the same RPM but at perhaps a lesser horsepower due to lesser oxygen availability at higher elevations, I would still get the same amount of electricity generated from the generator. Sorry for the run-on sentence there.

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