what size generator to run a small camper
How To Summate Watt Usage
Though it's not hard to discover many table and lists on any old RV website nearly how much electricity each apparatus of device consumes, at that place'southward no tool to calculate it.
So guess what? I made a Google Sheets that does exactly that!
- The large blue push button below will accept y'all at that place (you don't even demand a Google account).
- So you can make a copy and calculate exactly your RV generator size.
- It's every bit easy as selecting 'Yes' or 'No' to a list of appliances and devices.
- The spreadsheet will return a minimum wattage total and a recommended total wattage.
If yous add your own watt-consumption by device (easy—the spreadsheet already shows manufacture averages) the recommendation becomes personalized and fifty-fifty more accurate!
Read on to get a full explanation of why you need the power you exercise and the best generator size for your situation.
The Short Respond: RV Generator Size
Your Air conditioning is really the big determining factor. If you have one, you lot'll need a lot of power.
If you have a fifth wheel RV or a larger Class A or C, y'all're going to need a ton of power. You probably even have a built-in generator.
This article focuses on small campers, teardrops, trailers…the kind of RVs with a portable generator setup.
That means this article covers 30 Amp generator sizes. For bigger RVs you'll desire 50 Amp. Read this article—our complete guide to RV generators—to larn more.
How Much Ability Do You Demand With Ac?
We get into it later, but if you've got a 13,500+, you're going to need a generator over 3,000W. We recommend this 1.
If y'all take a single fifteen,000 BTU AC unit, then your best option is getting 2 small 2,000W generators.
You tin can hook them up in parallel (connecting them and so their combined watts is 4,000W).
Read our review of the best generator to hook upwardly in parallel.
How Much Power Do You Need Without Air conditioning?
Awesome! You lot're really leaving the comforts of civilization behind.
You've also left the boundaries of 'two parallel generators fits (almost) all.' Then go along reading (and try using the estimator)!
A generator anywhere from 1,600W to 3,000W should continue you going well, but there'due south a large price difference inside that range.
If you desire a fast answer, this is a review of the end-all be-all of a generator that'll work not bad for whatever RV without AC. (Information technology's a Westinghouse.)
How Much Power Practise You Really Need?
At that place are three categories of power consumption to consider when powering your RV: air conditioning, kitchen appliances and everything else.
The important thing to remember, when choosing a portable generator or other power source, is that not all your devices will be running at the same time.
What If I Run All My Tech at the Same Time?
No, not all your appliances will run at the same fourth dimension.
Perhaps your AC volition exist running well-nigh of the fourth dimension in the summer, but your electric stove will only be running when you cook.
And when you lot're cooking, I dubiety you are vacuuming or drying your hair all at the same time besides.
Then you can see that this isn't a simple sum of watts—though that's where you want to outset.
Running Two Generators in Parallel
This is an awesome solution for the flexible RVer. For smaller RVs, you lot'll about likely be using a 30A system (notice the best 30A generators). 30A generators are often connected in parallel than 50A generators.
Connecting generators in parallel has many advantages
- Use one when you simply need ii,000W or connect them when you lot need 4,000W
- Two Quiet > 1 Loud
- Portable (y'all only have to lift one at a time)
- You Need a Connection Kit (Piece of cake to discover on Amazon)
At that place are many great generators out in that location that tin can run in parallel and are tranquility, portable, and minor while offered for a expert price.
My favorite generator (and a RV SUPPLY Co favorite) is a Honda, the EU2200i.
How Much Power To Run My RV AC Unit?
To run your AC yous generator must at least friction match the starting wattage.
The starting wattage is what an AC takes to 'wake itself up'. In one case information technology'south awake and running it operates on the running wattage.
| Air Conditioner Unit | Starting Wattage | Running Wattage |
| 13,500 BTU | ii,900W | i,300W |
| 15,000 BTU | iii,400W | 1,500W |
Equally you can see, there is a big departure between starting wattage and running wattage—the more the bigger the AC.
DISCLAIMER: These values are averages and estimates over a wide range of unlike models and specifications. Do not take this as final. RV SUPPLY Co assumes no responsibility whatsoever of any electrical problems.
How Large Should My Generator Exist to Power My Air-conditioning Unit?
The gap betwixt running and starting watts leaves a lot of room, if say, you have a 3,400W generator for a 13,500 BTU AC.
The generator volition work to ability it up, simply once the AC is on there is about 2,000W to ability other devices.
For 13,500 BTU, a 3,400W inverter generator is usually the best option. Read our review of the Champion 3,400W.
What Size RV Generator for fifteen,000 BTU AC?
15,000 BTU is tricky. Some 3,400 Watts tin can manage it, some can't.
We've reviewed the Champion 4,000W is a good choice if you don't program to accept a lot of other devices running simultaneous.
What'south really not bad nearly that particular Champion is that information technology is an inverter generator, which is uncommon for such a powerful generator. (Champion's 3,000W, which is not an inverter, is larger and louder.)
That's why hooking two generators up in parallel is such a great option! Read more!
How Much Power Practise I Need To Run My RV Appliances?
This department focuses on kitchen appliances.
At that place are a few items in here that can really outset to add together up. The practiced thing is, as well the fridge, these appliances will only become used when you cook.
| Apparatus | Starting Wattage | Running Wattage |
| RV Fridge | 500-900 | 180-600 |
| Electric Grill | 1,700 | 1,700 |
| Dishwasher | i,400 | 700 |
| Microwave | 500-1,000 | 500-1,000 |
| Coffee Maker | 600 | 600 |
| Toaster | 850 | 850 |
DISCLAIMER: These values are averages & estimates over a broad range of dissimilar models and specifications. Exercise not take this as last. RV SUPPLY Co assumes no responsibleness whatsoever of whatsoever electrical problems.
Do I Need a ten,000W Generator?
No. Of class not. Even if those numbers look high compared to a 2,000 or 3,000 Watt generator, don't worry.
Too the electrical grill, those items aren't really too big. Y'all'll only be using the microwave for much less than 1% of your time in an RV.
Any generator above 2,000W (all recommended on this page) can take it.
If you have an electric stove and a few other bigger appliances (or an AC unit), you should probably consider replacing it with a gas stove, first of all, or getting a generator like the Champion three,400W.
What Else Drains Ability in Your RV?
It's not unlikely to have your laptop charging next to your phone next to your airpods.
That said, your personal electronics are tiny compared to air conditioners or appliances.
Those yous'll want a 400-500 Watts 'spare'. A TV can is 200 Watts; a laptop charging is 100W. A phone is much less.
This tabular array contains the few items of note…
| Item | Starting Wattage | Running Wattage |
| Hair Dryer | 1,500 | 1,300 |
| Iron (the crease-removing kind) | 1,250 | one,250 |
| Infinite Heater | 1,250 | 1,250 |
| Vacuum | 1,000 | 400 |
A few electric devices accept the same starting and running wattages, but virtually don't considering they accept internal mechanisms that needs to start. Once it's running, information technology takes less energy to go along information technology going.
DISCLAIMER: These values are averages & estimates over a wide range of dissimilar models and specifications. Do not take this as last. RV SUPPLY Co assumes no responsibility any of whatsoever electrical problems.
How Much Is Electricity Worth?
I idea it would exist interesting to add a section of the toll of electricity.
This table shows the charge per unit of electricity in cents per kWh. That's cents as in $0.x.
kWh is kilowatts (1000 Watts) times hours. One kilowatt hour (kWh) is equivalent to 1000 Watts of ability consumed for i hr.
Full credit due to Choose Free energy. This is an incredible interactive graphic.
FAQ
What RV Generator Size Should I Have?
The full post (and the free calculator) volition best answer that question. Briefly…
With no AC, whatsoever (quality) generator under two,500W ought to be fine.
If you only have one AC (less than or equal to 15,000 BTU), I recommend getting two two,000W generators and hooking them up in parallel.
Y'all volition take a decent amount of extra power to run your other devices. 2 Honda EU2200is (Review) are your best bet, in my stance.
With more than one AC, your RV probably runs on 50 Amp service (and might have a generator built in).
Check out this part of our guide to the all-time RV generators.
How Much Ability (in Watts) Do I Need to Run My RV?
A 30 Amp RV, using the power equation, uses 3,600 Watts max (30 Amps X 120 Volt service).
A 50 Amp RV runs two 120 Volt cables at 50 Amps each, the total wattage equal to 12,000 Watts.
This is the amount of service you will receive if you lot plug into an outlet, the kind y'all'd find at a campground.
Read this full article to see if you lot demand a generator that matches the total possible ability, or if you don't demand that much. Find the best pick!
What size generator practice I demand for my RV?
This is an extremely broad question. The full post (and the free calculator) will best reply that question. Withal, in short…
With no Air-conditioning, anything under 2,500W should be fine.
If you only take i (thirteen,500 or 15,000 BTU), I recommend getting two 2,000W generators and hooking them up in parallel.
You will take a decent corporeality of extra power to run your other devices.
A pair of generators such as the Honda EU2200i volition serve you well.
With more than one Air-conditioning, your RV probably runs on fifty Amp service (and might take a generator built in).
I recommend checking out this department of our guide to RV generators.
How many Watts does a 30 Amp RV utilise?
A 30 Amp RV can take a maximum of 3,600 Watts (= thirty Amp X 120 Volts).
That said, an RV connected to a generator that produces less will too piece of work, for the total ability listed on the generator.
(Nigh generators under iii,600 Watts are inverters producing 30 Amp current.)
What size generator practice I need to power my air conditioning unit?
Great question! Starting time off, it depends on the size and number of Ac units.
If yous only have one (13,500 or xv,000 BTU), I recommend getting two 2,000W generators and hooking them up in parallel. That'll leave you with a adept amount of extra ability for your other devices.
A pair of generators such every bit the Honda EU2200i will serve y'all well.
Video Explanation
This guy jumps around a lot but he covers what you lot need to know.
Source: https://rvsupplyco.com/maintenance/rv-generator-size/
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