What size generator needed to run a 30 or 50 amp RV?

[brushtrooper]

Short story. I need a generator to run my RV for a week or so at my inlaws in Alabama. I have the 2k predator i use on my boat for bow fishing. Would 2 run enough power parallel kit to power 30 amp or 50 amp service? Need power ofr a week or so for FIL surgery while we take care of him.

[aggie2000tx]

I run a 3500 amp on a living quarters horse trailer all the time but you can’t run AC and microwave at same time. I have an on board 4000 amp generator and it runs everything all the time

[Easttxbowman]

Yep, 3500 inverter here as well

[brushtrooper]

I run a 3500 amp on a living quarters horse trailer all the time but you can’t run AC and microwave at same time. I have an on board 4000 amp generator and it runs everything all the time

so in theory, the 2-2k could run 1 AC? when microwave in use, turn AC off/

[68rustbucket]

2k is probably too small to run an a/c. 3500-4000 minimum.

[Greenheadless]

Oversimplified but watts divided by volts is amps.

[Top Of Texas]

3500 watt (not amp) Predator runs everything except both A/C units at the same time. Runs 1 just fine. 33 ft 5th-wheel with 2 A/C units, 50 amp but use 30 amp adapter with generator. Single A/C does pretty good but runs almost non-stop when over 90 degrees outside. Very comfortable inside. Make sure wife turns A/C off and no microwave when she runs hairdryer.

The Predator is nice and relatively quiet. Spark catcher has to be cleaned regularly.

[60 Deluxe]

No. If you want to make an uneducated guess, pull up some RVs that come with generators that are equipped similar to yours and see what size genny is used. For an educated guess, start writing down wattage consumption data from each of the appliances you will be using, then add five or six hundred watts for lighting and incidental use. My guess, based on experience, is that you really need about 7000 watts if you want to plug and play without having to be constantly managing the load.

[bboswell]

so in theory, the 2-2k could run 1 AC? when microwave in use, turn AC off/

A single 15,000 BTU AC is all my 3500 wants. Don’t think a 2000 has a chance.

[Red Letters]

I have a Honda 2200 and can run the A/C, lights extra. I do not have a soft start installed on the A/C, I am not sure of the size of the A/C.

[BubRay]

I’d go 5000 predator super quiet. If you watch them they will go on sale a few times a year during “generator days”

[muzzlebrake]

50 amps x 120v = 6000 watts. Add 25% for misc plug in appliances, chargers, line loss, etc = 7500 watts.
I would be looking for somthing in the 8kw range, maybe even 9 kw to be safe. Too much is always enough but too little is never enough.

[Bucknaked]

The problem with anything over 5 k is the weight and size factor! I went with two Predator 5000 inverters - each weighs 100 pds so easy enough to load and unload if need be. I run them in parallel 50 amp. Super quiet and sip gas.

[Low Fence]

My champion is 3500ish continuous and on my camper before current I had 2- 15k btu units. I could run 1 easily and would shut off to run microwave. It will burn some fuel though. I my route was to fill it before bed (9:3-10:00) and by 5:00qm it would be low or die (4+ gallons)

[BrianL]

Depends on what you want to run at the same time, but 3500w is minimal for a 13500BTU ac. If you have multiple ACs add 3000w more per unit, Your inverter will take about 400w.