Choosing the right generator for your RV is crucial, especially when it comes to running essential appliances like the air conditioner. Many RV enthusiasts wonder if a 2200 watt generator can power an RV air conditioner, particularly during hot summer months. This article explores the compatibility, requirements, and considerations for using a 2200 watt generator with your RV A/C, so you can make informed decisions for your next journey.
RV Air Conditioners And Generator Compatibility Overview
| Feature | 2200 Watt Generator | Typical RV Air Conditioner (13,500 BTU) |
|---|---|---|
| Running Power (Watts) | 1800-2200 Watts (Rated/Surge) | 1300-1800 Watts |
| Starting Power (Surge, Watts) | 2200 Watts (Peak) | 2000-3000+ Watts |
| Can Run A/C Alone? | Possibly (with adjustments) | Sometimes Needs Soft Start Device |
| Can Run Additional Appliances? | Limited | N/A |
| Best For | Small/Mid-Size A/C, High-Efficiency Models | N/A |
How Much Power Does An RV Air Conditioner Need?
Most RV air conditioners are rated by their cooling capacity—commonly 13,500 BTU or 15,000 BTU. The power they draw depends on their size and efficiency. Typically, a 13,500 BTU unit requires 1300-1800 running watts, but the essential detail is the startup or surge wattage, which can reach up to 3000 watts or more as the compressor kicks in. This surge places the greatest demand on your generator.
Common RV Air Conditioner Power Ratings
- 9000-11,000 BTU Units: 1000-1600 running watts, 1800-2000 starting watts
- 13,500 BTU Units: 1300-1800 running watts, 2000-3000 starting watts
- 15,000 BTU Units: 1500-2000 running watts, 2800-3500 starting watts
Understanding Generator Specifications: Important Factors To Consider
Generator labels often display two key numbers: the running (continuous) watts and surge (starting) watts. Most 2200 watt generators provide a continuous 1800 watts and can deliver up to 2200 watts for a few seconds during appliance startup. It’s crucial that a generator’s surge rating meets or exceeds the starting wattage required by your air conditioner.
- Continuous Output: The power your generator can supply without interruption
- Surge Output: Temporary maximum output, crucial for startup demands
If your air conditioner’s starting load surpasses the generator’s surge output, the generator may overload or the air conditioner may fail to start.
Matching A 2200 Watt Generator With Your RV Air Conditioner
Will a 2200 watt generator run an RV air conditioner? The answer largely depends on the size and efficiency of your specific A/C unit. Many modern, high-efficiency models (including compact 11,000 BTU or some 13,500 BTU air conditioners) may run on a 2200 watt generator—especially if used exclusively and fitted with a “soft start” module.
- Direct Compatibility: Lower BTU units, energy-efficient models, or those equipped with soft starters.
- Limited Compatibility: Standard 13,500 BTU units without soft starters, older A/C models, or any 15,000 BTU units are generally out of reach.
Always check both your generator and air conditioner manuals for exact wattage requirements, as A/C startup draws are the primary barrier to compatibility.
Soft Start Devices: The Secret To Running An RV A/C On Limited Power
One of the most effective upgrades is a soft start device. These aftermarket modules significantly reduce an air conditioner’s startup surge by controlling the compressor’s initial power draw. This can often reduce starting requirements by up to 50%, making it possible for a 2200 watt generator to successfully run air conditioners that would otherwise exceed its capacity.
Key Benefits Of Using A Soft Starter
- Lowers peak startup amps (from ~50A to ~18-22A on many units)
- Less strain on your generator and quieter startups
- Protects your electronics from power surges
- Potential to run other small appliances concurrently
Popular brands for RV soft start devices include Micro-Air EasyStart and SoftStartRV.
What Else Can You Run On A 2200 Watt Generator?
If your 2200 watt generator is dedicated solely to the A/C (especially one with a soft starter), it should be reliable on most mild-weather days. However, if you plan to run other appliances—such as a microwave, coffee maker, or hair dryer—you will quickly exceed the generator’s limitations. Most high-consumption devices draw 1000-1500 watts alone.
- With A/C On: Limited headroom for anything else
- Without A/C: Can power multiple smaller appliances with careful management
Users should stagger appliance usage or upgrade to a larger generator (or pair two portable units) if simultaneous operation is necessary.
Other Factors Impacting Generator Performance
Beyond wattage, several other variables affect how well a 2200 watt generator can power your RV air conditioner:
- Altitude: Higher elevations reduce a generator’s effective power output
- Ambient Temperature: Hot weather can stress both generator and A/C
- Fuel Type: Inverter generators running on propane may produce less power than on gasoline
- Generator Age & Condition: Older generators may not deliver full rated output
Operating at high altitudes or in extreme heat requires derating—meaning your generator may supply less than its advertised wattage.
How To Check If Your 2200 Watt Generator Will Work For You
- Find Your A/C Model’s Starting and Running Wattages: Listed on the data plate or in the owner’s manual
- Compare To Generator Specs: Ensure the generator’s surge wattage matches or exceeds the A/C’s starting demand
- Install A Soft Start If Needed: Especially for standard 13,500 or 15,000 BTU units
- Test During Normal Conditions: Verify startup at your intended altitude and temperature
- Don’t Exceed Generator Capacity With Other Appliances: Run high-wattage devices one at a time, if at all
Careful planning and load management are critical when using a 2200 watt generator in an RV setting.
Popular 2200 Watt Generators For RV A/C Use
Several reputable brands manufacture 2200 watt inverter generators suitable for RV use. Honda, Yamaha, Champion, and Generac offer models known for their reliability, quiet operation, and clean power output—essential for safe use with sensitive electronics and air conditioners.
Comparison Table Of Popular Models
| Model | Rated Power | Surge Power | Weight | Features |
|---|---|---|---|---|
| Honda EU2200i | 1800w (continuous) | 2200w (max) | 47 lbs | Quiet, parallel capable, fuel efficient |
| Yamaha EF2200iS | 1800w | 2200w | 55.2 lbs | Quiet, smart throttle, parallel option |
| Champion 2000-Watt | 1700w | 2000w | 39 lbs | Budget-friendly, lightweight |
| Generac GP2200i | 1700w | 2200w | 46.6 lbs | Inverter quiet, compact |
FAQ: Addressing Common Questions About 2200 Watt Generators And RV A/C Units
Can You Run A Standard 15,000 BTU RV A/C On A 2200 Watt Generator?
Usually not. Startup power demands far exceed what a 2200 watt generator can supply. Even soft start devices may not reduce the load enough for reliable starting and running of a 15k BTU air conditioner.
Will A 2200 Watt Generator Run Other Appliances At The Same Time?
Not while running a typical A/C unit. 2200 watts is generally enough for one high-demand appliance at a time. For simultaneous usage, consider upgrading your generator or running a parallel setup with two inverters.
Is A Soft Start Always Needed?
For most 13,500 BTU air conditioners, yes. Smaller units may start without, but the addition guarantees less stress on your generator and improves the odds of successful operation, especially in warm weather or at altitude.
Can Two 2200 Watt Generators Be Used Together?
Yes, if they are “parallel-capable” (most modern inverter generators are). This setup doubles your output, making it easy to run 15,000 BTU air conditioners and additional appliances. Always use the manufacturer’s approved parallel kit.
How Loud Is A 2200 Watt Inverter Generator?
Most models operate at 50-60 dBA, about the sound level of a normal conversation. This is suitable for campgrounds and overnight use, ensuring minimal disturbance.
Tips For Best Results Using A 2200 Watt Generator With Your RV A/C
- Install a soft start device for the greatest chance of success and reduced wear
- Start your A/C before turning on other heavy appliances
- Monitor total generator load using a watt meter or power management system
- Perform regular generator maintenance for optimal output
- Use extension cords rated for high amperage and keep them short to reduce voltage drop
- Avoid running the generator at high capacity for prolonged periods to prolong engine life
When To Consider A Larger Generator Or Parallel System
If you frequently camp in extreme heat, at high elevations, or want to run multiple appliances simultaneously, a parallel generator setup (two 2200 watt units) or a larger single generator (3000+ watts) is recommended. Upgrading guarantees sufficient starting and running capacity for a wider range of appliances and overall convenience during your travels.
Key Takeaways: Can A 2200 Watt Generator Run Your RV Air Conditioner?
- A 2200 watt generator can run many smaller RV air conditioners, especially with a soft start installed, but is typically underpowered for larger 15,000 BTU units.
- Check your A/C’s starting and running power requirements and compare to generator specs.
- Soft start devices greatly improve compatibility and reduce startup load.
- If flexibility and appliance stacking are important, consider pairing generators or opting for a larger unit.
Careful planning, proper load management, and considering upgrades like soft start devices can help maximize your RV comfort while traveling with a 2200 watt generator.