Do I need generator?

get the gen set ,those batteries will run down quicker than you think, and batt won,t run a ac unit.

Do I need a generator: IN most of the USA the answer is yes, at least 3,000 watts, 4,000 or 5,000 might be better. Oh you meant do I need on in the RV.

Well.. Let me put it this way.

When I got my Class A (5,500 watt generator on board) the very first mod was adding a Twist Lock outlet (30 amp) and adding a proper Generator Transfer panel to my house with a matching INLET on the back of the house.. I also built a custom extension cord.

When I came home one Winter and found Frosty (Airblown inflatable snowman) Sleeping on the job.. I went down to the basement (light from windows) got the cord, hooked it to the inlet, Uncoiled it as I walked, Hooked it to the outlet, Got the Gen-Turi out and put it on, Back in the motor home and pressed the buttons in the approved pattern (STOP till the light comes on, wait a couple seconds, then start). and when I heard the CLUNK of the transfer switch I went back to the basement and the transfer panel

CLICK: Lights
CLICK: HEAT
CLICK: COld (Freezer, and another click for the fridge)
CLICK: Microwave beeped
CLICK: TV's worked
CLICK: computer worked.


Now the panel, inlet, cord and install ran right around 1,000 bucks total
The motor home (rounded) about 100 times that

Warm wife: Priceless.

We use our generator at least a few times on every major trip.

One episode when we were in Utah near Arches and pulled over by the river to prepare lunch, it was close to 100 degrees, no breeze, no shade. We used the gen to run the AC for an hour or so, then on our way. Another similar time, used it on a steamy morning while dry camping on the outer banks. Most recently at the Albuquerque Balloon Fiesta where we were dry camping near the field.

We haven't had any problems getting the propane refilled on our Sprinter. The propane tank's already there and in use anyway for stove, furnace, water heater.

Dry camping without one is certainly possible for short stays but you give up many of the conveniences your rv can provide. On longer stays you would need to charge batteries or give up even more. There is little about a300 hp battery charger that makes sense and that's the case using engine to charge.

Things to consider
Rooftop A/C has a heat pump built in so that is 110 volt.If you or spouse is one of those people who cannot survive without A/C then a jenny is needed if you dry camp without hookups. In addition While traveling the rooftop A/C would not be available if you do not have a jenny so depending on how good your dash A/C is it might be a little warm in the unit on very hot days.

The refrigerator may or may not operate on 12 volt but it probably will have a propane gas option. Navion website states 2 way fridge which usually 110 volt or gas. A 12 volt current is required in the gas mode for the units controllers but this is a minimal draw.
If your plan is to stay somewhere for a while without any power hookups (dry camp) then a very small generator or solar charger to keep the batteries full might be worthwhile (not part of M/H). If you are on the move a lot or staying in campgrounds with power then the need for a generator is greatly diminished.

IMO the unit will sell much better if it has a on board generator

None of your stated purposes necessitates the NEED for a jenny now you decide how important the A/C is.

Hi,

Since it is a class C you can run the engine to charge the battery bank, if that is required. The generator is only needed for running the air conditioner and/or the microwave.

Do get the largest battery that will fit the compartment, or two if they will fit. I'd consider AGM chemistry.

I would consider adding a modest solar system.

I think you would have to order a unit without a generator. In the long run it would most likely cost you more to order a unit with less features than to purchase something on the dealers lot. You would not be able to run your AC off the batteries. If my memory is correct the unit you mentioned is on the Sprinter chassis. If so that unit would have a propane generator. The propane units are less problematic minimal usage but have a bigger hassle refueling.