SimplyAnAdventure
Well-known member
Is that AC with only a 15A controller? Size of the battery bank? Is there a charger hooked up to the alternator too?
If it's actually hot and you are parked for awhile, AC will need a massive solar/battery system to keep you cool. There have been no great breakthroughs in compressor efficiency lately, and the laws of physics have not been repealed. That's why most people who like to camp in the boonies in summer, opt for high altitude... or at least camp in the shade... and don't bother with AC. It's just too much expense, weight, and space to be viable.
I did some heating tests on my rig, and it's about 18 W/F in the first 24hrs. So 20 deg F temperature delta (inside vs out) is 360W. It's pretty well insulated though with 1.5" foam and no bridging, and sealed. AC would take ~150W to produce the same 20F delta. The big 5,000Wh battery would last 33 hrs. I just wonder what the use case is that makes carrying all this around in a small rig sensible. Won't you be outside during the day? Won't it cool off at night anyway? If not, then why didn't you go somewhere else?
Well for me AC is about options. This is a DC Air conditioner that draws 19A (DC) in eco mode so with my 400Ah of battle born batteries it can run all night without struggle. It’s not meant to be like an RV air conditioner where you sit inside all day and watch tv it’s meant to be used to cool the camper down when needed and for sleeping.
As for going into higher elevations, moving to cooler spots ect…. Of course and if that’s an option that what anyone would do. Truly that a very easy option in the mountain west. But let’s say you’re camping in South Carolina…. Or maybe TX. Humidity is the killer even more so than heat but also scorching SW heat can be pretty punishing.
Air conditioning isn’t for everyone but I didn’t want to build my dream camper just to cut a few corners and make it almost what I wanted. It’s extremely efficient and if I absolutely had to I have a Honda 2200i converted to propane that can power my 45A charger and keep the AC going indefinitely.
As far as expense, weight, and space…. It was about $5000 to add and air conditioner, I had the batteries already spec’d but at retail 4 battle born batteries are about $4000, it weighs 78 lbs, and space…. Well it’s in the roof so no space lost and it’s only about 3” higher than the fan on the back. Idk, I guess it’s not for everyone which is why it’s optional…. Those of us on the East Coast where it’s humid or those poor souls in South TX or Florida are certainly going to opt for it as well, if air conditioning isn’t for you than why worry about it, personally I’m super excited to have it as an option for those times I need it. Hell it’s only money.
This is one of the biggest reasons I opted for a full size HD Truck. After years of worrying about every pound I added to my little Toyota I now have 4214lbs of available payload so adding 78lbs of comfort isn’t even a thought to me. To each his own but sometimes I’d rather have it and not need it, than need it and not have it.
FWIW so far there is nothing I don’t love about this setup!
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