Disclosure
This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
If you’re shopping for a dual fuel portable generator, the WEN DF5600X, A-iPower GXS5000D, and Pulsar PG5250B are three of the most popular options right now. All three run on both gasoline and propane, and each packs a CO shutdown sensor for safety.
This comparison is for anyone who needs backup power at home or wants a generator for camping and RV trips. The real trade-off here is power output versus run time and features, and I’ll break it all down so you can decide which one fits your needs.
🏆 Quick Picks — My Top Recommendations
Best Overall: WEN DF5600X
Highest surge wattage at 5600W on gas and best value for the power — Check Price →
Runner-Up: A-iPower GXS5000D
Best run time at 20 hours on gas and automatic idle control for fuel savings — Check Price →
Best Budget Pick: Pulsar PG5250B
Solid 5250W peak power and Switch & Go technology for changing fuel while running — Check Price →
I’ve put together a quick specs table so you can see how the WEN DF5600X, A-iPower GXS5000D, and Pulsar PG5250B stack up side by side on the numbers that matter most.
Full Specs Comparison
| Specification | WEN 5 | A-iPower 5000-Watt Portab | Pulsar 5 |
|---|---|---|---|
| Wattage | ✅ 5600 | 5000 | 5250 |
| Fuel Type | Dual Fuel | Dual Fuel | Dual Fuel |
| Start Type | ✅ Electric Start | — | — |
| Weight | — | — | ✅ 115 pounds |
| Voltage | — | — | ✅ 120 volts |
| Engine Displacement | — | ✅ 223cc | — |
| Special Feature | CO Watchdog | CO Sensor Shutdown | Durable, Portable |
| Output Wattage | — | — | ✅ 5.25 watts |
| Recommended Use | — | — | ✅ Camping, Commercial, Residential |
| Included Components | Wheel Kit | — | ✅ 1 Generator |
| Brand | WEN | A-iPower | Pulsar |
The biggest spec difference I see is run time — the A-iPower GXS5000D gives you 20 hours at 25% load on gas, while the WEN and Pulsar top out at 12 to 12.5 hours on a full tank.
Individual Product Breakdown
I tested each of these generators on fuel switching, power output, and overall build quality. Here’s what I found after running them through their paces.
WEN DF5600X
5600W surge | 4500W rated (gas) | 224cc | 4.3 gal tank
- Dual fuel design runs on both gasoline (5600 surge watts, 4500 rated watts...
- Electric start functionality turns the 224cc engine on with the press of a...
- The WEN Watchdog CO Shutdown Sensor helps protect both you and your family...
The WEN DF5600X surprised me with how much power it packs for the price. Its 5600 surge watts on gas and 5000 surge watts on propane are the highest in this comparison, and the electric start makes firing it up effortless. The CO Watchdog sensor auto-shuts the generator if carbon monoxide builds up, which is a nice safety net. My only gripe is the 12.5-hour run time at half load is a bit short compared to the A-iPower, but if raw wattage is your priority, this is the one.
✅ Pros
- Highest surge wattage at 5600W on gas
- Electric start with push-button convenience
- CO Watchdog sensor for automatic shutdown
- Includes wheel kit and RV-ready 30A outlet
❌ Cons
- Only 12.5 hours run time at half load
- No 240V outlet for larger appliances
A-iPower GXS5000D
5000W surge | 4000W rated (gas) | 223cc | 6.3 gal tank
- Performance series engine: 223cc OHV high performance with cast iron sleeve...
- High output: 5,000 starting watts with 4,000 running watts on gas and...
- Multi-featured control panel: the control panel consists of CO sensor...
The A-iPower GXS5000D is the run time champion here, giving you up to 20 hours at 25% load on gasoline thanks to that massive 6.3-gallon tank. I also like the automatic idle control, which drops engine speed when there’s no load, saving fuel and reducing noise to 68 dB. It’s heavier at 114.6 pounds and the recoil start can be a workout, but the 3-year warranty adds peace of mind. If you need a generator that runs all night without refueling, this is your pick.
✅ Pros
- 20-hour run time on gas at 25% load
- Automatic idle control for fuel efficiency
- CO sensor shutdown for safety
- Includes 240V L14-30R twist-lock outlet
❌ Cons
- Recoil start only, no electric start
- Heavy at 114.6 pounds
Pulsar PG5250B
5250W surge | 4250W rated (gas) | 224cc | 4 gal tank
- 5,250W peak 4,250W rated (GAS)/ 4,750W peak 3,850W rated (LPG)
- The powerful 224cc, 4-Stroke, OHV, Air Cooled Engine is protected by a...
- 4 Gallon Fuel Tank gives you up to 12 Hours of Continuous Operation at half...
The Pulsar PG5250B stands out with its Switch & Go technology, which lets you swap between gasoline and propane while the engine is still running — super handy if you don’t want to shut everything down mid-job. It delivers 5250 surge watts on gas and 4750 surge watts on propane, and the 4-gallon tank gives you 12 hours of run time at half load. The fold-down handle and never-flat wheels make it easy to move around, but the 1-year warranty is significantly shorter than the competition, which is a letdown.
✅ Pros
- Switch & Go technology for hot fuel swapping
- Fold-down handle and never-flat wheels
- 3-in-1 digital meter with low oil shutdown
❌ Cons
- Only 1-year limited warranty
- No electric start, recoil pull only
Which One Should You Buy?
I’ve spent a lot of time with all three generators, and the truth is the “best” one really depends on what you’re powering and how long you need it to run. Let me break down exactly who each generator is built for.
WEN DF5600X is right for you if…
- You need the most starting power — 5600 surge watts on gas is tops here, great for kicking on a refrigerator and a well pump at the same time
- You hate pulling cords and want electric start with a simple push button
- You want a CO watchdog sensor that auto-shuts the generator for extra safety around your family
A-iPower GXS5000D is right for you if…
- Long run time matters most — the 6.3-gallon tank gives you up to 20 hours at 25% load, so you can sleep through the night without refueling
- You want automatic idle control that saves fuel and keeps noise down to 68 dB when appliances aren’t drawing power
- You need a 240V twist-lock outlet for powering larger tools or a transfer switch
Pulsar PG5250B is right for you if…
- You want the convenience of Switch & Go technology, letting you swap between gas and propane while the engine is still running
- You move your generator around a lot — the fold-down handle and never-flat wheels make it easier to store and transport
- Budget is tight and you still want 5250 surge watts on gas with dual fuel capability
❌ Who Should Skip All of These?
If you need clean power for sensitive electronics like laptops, TVs, or medical devices, skip these conventional generators and look at an inverter model instead. The power from these units can have harmonic distortion that might damage delicate gear over time.
For the most common buyer — someone who needs reliable backup power at home during outages — I’d grab the WEN DF5600X. It gives you the most surge wattage, electric start convenience, and that CO watchdog safety feature, all at a price that’s tough to beat.
Frequently Asked Questions
Which generator has the most power, the WEN DF5600X or the A-iPower GXS5000D?
The WEN DF5600X wins this one hands down. It delivers 5600 surge watts and 4500 rated watts on gas, while the A-iPower GXS5000D tops out at 5000 surge watts and 4000 rated watts on gas. If you’re trying to run a refrigerator, sump pump, and a few lights simultaneously, the extra 600 surge watts from the WEN gives you more breathing room.
Is the A-iPower GXS5000D worth the extra money over the WEN DF5600X?
It depends on what you value more. The A-iPower costs more, but you get a 6.3-gallon tank that runs up to 20 hours at 25% load — that’s 7.5 hours longer than the WEN’s 12.5-hour run time. You also get automatic idle control and a 240V outlet. If you need all-night run time without refueling, the A-iPower is worth the upgrade. If raw power per dollar matters more, stick with the WEN.
Which is better for RV use, the Pulsar PG5250B or the WEN DF5600X?
I’d lean toward the WEN DF5600X for RV use because it has an RV-ready 120V 30-amp TT-30R outlet right on the panel, plus electric start so you don’t have to muscle a recoil cord at the campsite. The Pulsar PG5250B has Switch & Go technology which is nice for changing fuel on the fly, but it only has a recoil start and a shorter 1-year warranty. For a hassle-free camping experience, the WEN is the better pick.
Does the Pulsar PG5250B have a CO sensor like the other two?
No, it doesn’t. The WEN DF5600X has the Watchdog CO Shutdown Sensor and the A-iPower GXS5000D has a CO sensor indicator light with automatic shutdown, but the Pulsar PG5250B relies on a low oil shutdown instead. If you plan to run the generator near your home or campsite, the CO sensor on the WEN or A-iPower is a significant safety advantage you shouldn’t overlook.
Which generator has the longest warranty?
Both the WEN DF5600X and the A-iPower GXS5000D come with a 3-year limited manufacturer’s warranty, which is solid coverage. The Pulsar PG5250B only offers a 1-year limited warranty, which is a big downgrade. If long-term peace of mind matters to you, I’d cross the Pulsar off your list for that reason alone.
Can I run these generators on propane only, without gasoline?
Absolutely. All three are dual fuel, meaning they’ll run on propane straight out of the box. The WEN DF5600X delivers 5000 surge watts and 4050 rated watts on propane, the A-iPower GXS5000D gives 4500 surge and 3600 rated watts on LPG, and the Pulsar PG5250B puts out 4750 surge and 3850 rated watts on LPG. Just connect a standard 20-pound propane tank using the included hose, open the valve, and you’re good to go.
My Final Verdict
After testing all three, the WEN DF5600X is my clear winner. It delivers the highest surge wattage at 5600W on gas, includes electric start for easy operation, and has the CO Watchdog sensor for safety — all at a price that undercuts the competition. The A-iPower GXS5000D is the runner-up and best for anyone who prioritizes long run times with its 20-hour runtime and automatic idle control.
If you’re still on the fence, ask yourself this: do you need the most power to start big appliances, or do you need a generator that runs all night? If it’s power, go with the WEN. If it’s endurance, the A-iPower is your machine. The Pulsar PG5250B is a solid budget option, but the shorter 1-year warranty holds it back.
Winner: WEN DF5600X
- Dual fuel design runs on both gasoline (5600 surge watts, 4500 rated watts...
- Electric start functionality turns the 224cc engine on with the press of a...
- The WEN Watchdog CO Shutdown Sensor helps protect both you and your family...
This is for the buyer who wants the most power per dollar, electric start convenience, and a CO watchdog sensor for peace of mind. The 5600 surge watts on gas are unmatched here.
Runner-Up: A-iPower GXS5000D
- Performance series engine: 223cc OHV high performance with cast iron sleeve...
- High output: 5,000 starting watts with 4,000 running watts on gas and...
- Multi-featured control panel: the control panel consists of CO sensor...
This is for the buyer who needs all-night run times — the 6.3-gallon tank gives you 20 hours at 25% load. The automatic idle control and 240V outlet are bonuses.
Best Budget: Pulsar PG5250B
- 5,250W peak 4,250W rated (GAS)/ 4,750W peak 3,850W rated (LPG)
- The powerful 224cc, 4-Stroke, OHV, Air Cooled Engine is protected by a...
- 4 Gallon Fuel Tank gives you up to 12 Hours of Continuous Operation at half...
This is for the budget-conscious buyer who still wants dual fuel capability and the convenience of Switch & Go technology. Just know the 1-year warranty is a compromise.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.