What kind of gen should I shop for?

Champion just brought out a 3000/4000 inverter generator. 50+ lbs 64 decibels. Parallel 2 of them to run two AC units. Looks like they will be about $700 each plus another $80 for the parallel kit.

I currently Have Harbor freight Portable 5K  dual fuel genset. My prior 5'er had a Built in Onan 5500 LP.

Unless you use your genset every trip Go with Lp portable. They don't have the carb and fuel issues that gasoline powered units do. You also don't have to deal with gas cans and spillage

If you plan to use genset5 most every trip a built in is 1000 times more convenient that any portable.

Push button convenience means zero set up. Zero hauling, zero take down. Zero loading and unloading.

Check out RVMP generators if you are interested in a built in alternative to Onan.

At this point I have owned built in and portable. For regular use go built in for occasional use portable is OK but will never be as convenient as built in.

2 aircon is the challenge with a portable unless you want to go big or start paralleling multiple units.

How often will you really need to run both on generator power? If it's rare, I would go with something like the Champion 4500w dual fuel (honda/yamaha are way too expensive for what they are). I would fabricate a simple mount to put it on the pin box with a removable box to protect it from weather and eyes. It's borderline but if you shut everything else down, it might start both (once running it should be fine).

I would run it on LP. Unless you are religious about draining and cleaning the carb, it will gunk up unless using it constantly. LP avoids that issue. I keep a couple 20# propane tanks in the truck bed (easy to swap or fill depending what's available) and I could hook into one of the 30# onboard tanks in a pinch.

Hi Dave, signed in, to add my 5 cents. Like mentioned adding soft starts would help, to get by on less power. If you need to run both ACs, you are going to need one heavy generator, that can supply at least 6,500 watts. You can get 2 smaller units, and parallel them, which is what I'd suggest. You can run one gen, one AC if you want, but parallel, run together when needed. The expensive Honda gen is always a good choice, but Champion would be my choice for less expensive, but good quality, and great manufacturer backing. I know Champion has a 50 amp ready parallel setup. IIRC paralleling two units will not produce full power of each, so would suggest at least two 3,500 watt models.

You will burn lots of gas, running two 15K units plus other electric needs, so just another thought that you need to haul plenty of fuel.

Congrats on the new 5th, hope you enjoy it for many years!

Take care, 

Jerry

thats going to be a tough one, are you putting soft starts on the AC units?  if so you could get buy with a smaller genny, I am actual concidering getting one for the 5th wheel.  not for actual camping but rather for running the AC during exceptional heat waves.  SO I am looking like you, but I only need to run one AC if it comes to that, so I can get buy with something smaller.  I also want ultra quiet, which is why I won't even concider a built in one, but it has to be light enough for me to move around.  I think this will be your biggest hurdle in one that can run 2 AC's at once..  can you move it around, if not you might as well go with a built in and save your back.  

the first thing to do would be to hook a meter up and start up your ac's one at a time and see how much the current spikes with one then adding the second one.  the spike and the running current.  then at least you'll know what range you looking at, do you even need to run two AC's at once.. can you run the one in the living area only and the one in the bedroom at night only?  This would reduce your requirments quite a bit.  .  myself I am thinking of getting THIS ONE .  its on sale at costco for 699 CDN and only weighs 57 lbs and can run at 62db so faily quiet, I would rather be down in the low 50's high 40's like the honda and several others, but I'll see what I can find thats afordable.