There’s nothing quite like the freedom of the open road in an RV Generators. But to keep the adventure comfortable, you need a reliable source of electricity when you’re away from a campground hookup. This is where an RV generator becomes your best friend. It’s a portable power plant that provides the energy to run your air conditioner, charge devices, and power your appliances. Whether you’re boondocking in the desert or just need to stop for a quick lunch with the AC on, a good generator is essential. This guide will help you understand everything you need to know about choosing, using, and maintaining your RV’s power source.
What is an RV Generator? A Simple Explanation
An RV generator is a compact engine that converts fuel into electrical power. Think of it as a miniature power station you can take anywhere. It works by burning fuel—usually gasoline, diesel, or propane—to spin an alternator, which then produces electricity. This electricity powers everything in your RV, from the tiny LED lights to the power-hungry air conditioner. Generators can be built-in (sometimes called “onboard” generators) or portable models that you store and take out when needed. Their main job is to give you the comforts of home, even when you’re miles off the grid.
Why You Need a Power Generator for Your RV
You might be surprised by how much you rely on a generator. It’s not just for luxury; it’s for basic comfort and safety. On a hot day, it powers the air conditioner, preventing the RV from becoming an oven. It keeps your refrigerator running, so your food doesn’t spoil. It charges laptops and phones, powers the microwave for a hot meal, and provides light after the sun goes down. Without a generator, your ability to camp independently is greatly limited. It provides the freedom to camp anywhere you want, not just at sites with electrical hookups.
RV Generators Types of Inverter vs. Conventional
The two main types you’ll encounter are conventional and inverter generators. A conventional generator is a workhorse. It runs at a constant speed to produce power and is generally more affordable. However, it can be louder and the power it produces (“dirty power”) can be less stable, which might be risky for sensitive electronics like laptops. An inverter generator is more advanced. It produces AC power, converts it to DC, and then “inverts” it back to a very clean, stable AC current. They are much quieter, more fuel-efficient, and safer for your devices, but they come with a higher price tag.
Understanding Power Output What Can You Run?
Generators are measured in watts, and figuring out what you need is the most important step. You need to add up the wattage of all the appliances you plan to run at the same time. Remember, appliances with motors (like your AC or microwave) need an extra burst of power, called “surge watts,” to start up. A common 2,000-watt inverter generator can easily handle a TV, lights, and a coffee maker. To run a 13,500 BTU air conditioner, you’ll typically need at least a 3,000- to 3,500-watt generator. Always check the owner’s manual of your RV appliances for their specific wattage requirements.
RV Generators Gasoline, Diesel, or Propane?
Your choice of fuel is a big decision. Gasoline generators are common and fuel is easy to find, but gasoline doesn’t store well for long periods. Diesel generators are very durable and fuel-efficient, making them great for larger RVs, but diesel fuel can be messy. Propane generators burn cleaner, which means less engine maintenance, and propane doesn’t degrade over time like gasoline. However, propane has less energy density, so you might get less power from a similarly sized gas generator. Many RVers choose a fuel type that matches their RV’s engine to simplify fueling.
The Benefits of a Built-In Onboard Generator
A built-in, or onboard, generator is permanently installed in a designated compartment of your RV. The biggest advantage is convenience. It’s always there, ready to go at the flip of a switch. It’s often wired directly to your RV’s fuel tank, so you don’t have to handle separate fuel cans. These generators are usually very powerful and can often run multiple heavy appliances like two air conditioners at once. They are also more secure, as they can’t be stolen like a portable unit left outside. The main downside is the high upfront cost and installation complexity.
RV Generators Portable Might Be Your Best Bet
Portable generators offer fantastic flexibility. They are much more affordable than built-in models and can be used for other purposes, like powering your home during an outage. You can also move them a distance away from your RV to minimize noise. However, they come with hassles. You have to store them safely, lift them in and out of your vehicle, and manage separate fuel cans. You also must never run a portable generator inside your RV or in an enclosed space, as the exhaust contains deadly carbon monoxide. They require more hands-on effort but are a great budget-friendly option.
Key Features to Look For When Buying
When shopping for a generator, don’t just look at the price tag. An electric start button is a wonderful luxury compared to struggling with a pull-cord. Look for a model with multiple outlets. Fuel efficiency is huge, as it determines how long you can run between refills. For inverter generators, check the noise rating, measured in decibels (dB). A rating in the 50-60 dB range is considered quiet. If you camp at high altitudes, ensure the generator is altitude-rated. A built-in fuel gauge is also a simple but incredibly useful feature.
Generators Types A Quick Comparison Guide
| Feature | Inverter Generator | Conventional Generator |
| Power Quality | “Clean” stable power – safe for laptops and sensitive electronics | “Dirty” power – can damage sensitive devices |
| Noise Level | Quiet operation (50-60 dB) – perfect for campgrounds | Much louder – can disturb your peace and neighbors |
| Fuel Efficiency | Excellent – adjusts engine speed to match power needs | Less efficient – runs at constant high speed |
| Price Point | More expensive upfront investment | More affordable initial cost |
| Best For | Boondocking & modern campers with electronics | Budget-conscious users who need basic power |
RV Generators Essential Safety Tips for Use
Safety should always be your top priority. Carbon monoxide (CO) is the greatest danger. Never, ever run a generator inside your RV, in a garage, or under an awning. Always place it downwind and far away from any windows, vents, or doors. Ensure the exhaust is pointed away from your campsite and your neighbors’. Use a heavy-duty, outdoor-rated extension cord to connect a portable generator to your RV. Let the generator cool down before refueling to prevent a fire. Investing in a battery-operated carbon monoxide detector for your RV is a non-negotiable safety measure.
FAQs
1. What size RV generator do I need to run my air conditioner?
You’ll typically need at least a 3,000 to 3,500-watt generator to run a standard 13,500 BTU RV air conditioner. Always check your AC unit’s specific starting wattage requirements first.
2. Can I run my generator all night?
While possible, it’s not recommended due to noise and safety. For overnight power, consider using your RV’s batteries for lights and fans, and only use the generator when needed for climate control.
3. What’s the difference between an inverter and conventional generator?
Inverter generators produce “clean” power that’s safe for sensitive electronics and are much quieter. Conventional generators are more affordable but louder and produce less stable power.
4. How far from my RV should I place a portable generator?
Always place portable generators at least 20 feet from your RV with the exhaust facing away. Never run them inside or under awnings due to deadly carbon monoxide risk.
5. How often should I maintain my RV generator?
Check oil before each use and change it every 50-100 hours of operation. Run your generator for 30 minutes monthly with a load to keep it in good working condition.