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If you need serious backup power for your whole house, you’re likely looking at the Champion 201302 (11,500 starting watts), the DuroMax XP12000EH (12,000 starting watts), or the Green-Power America GN13000DCS (13,000 starting watts). I’ve spent time with all three, and they each have real strengths — but there’s a clear winner for most homeowners.
This comparison is for anyone who needs to keep lights, fridge, well pump, and maybe even an AC running during an outage. The big trade-off here is power output versus runtime versus price. I’ll break down exactly where each generator shines so you can make the right call.
🏆 Quick Picks — My Top Recommendations
Best Overall: Champion 201302 (11500W)
Longest runtime at 10 hours on gasoline, plus a CO sensor and 3-year warranty — Check Price →
Runner-Up: DuroMax XP12000EH
Best value with 12,000 starting watts, MX2 power boost, and 8.3-gallon tank — Check Price →
Most Power: Green-Power America GN13000DCS
Highest starting watts at 13,000 and lightest at 204 pounds — Check Price →
I’ve laid out the key specs side by side so you can see exactly how these three heavy hitters compare on power, runtime, and features.
Full Specs Comparison
| Specification | Champion Power Equipment | DuroMax XP12000EH 12 | Green-Power America Dual |
|---|---|---|---|
| Wattage | 9200 | 12000 | ✅ 13000 |
| Fuel Type | Gasoline, LPG | Gas & Propane | Gas or Propane |
| Voltage | ✅ 240 | — | — |
| Item Weight | ✅ 209 pounds | — | — |
| Special Feature | CO Sensor, Cold Start, Dual Fuel | — | CO-Seizer |
| Start Type | Electric | Electric | Electric/Recoil |
| Recommended Use | Commercial, Residential | Whole Home Backup | — |
| Power Source | ✅ Fuel Powered | — | — |
| Warranty | ✅ 3-Year | — | — |
| Output Wattage | ✅ 9200 | — | — |
The biggest difference I see is that the Green-Power America delivers the highest starting watts at 13,000 but only runs for 7 hours on gas, while the Champion runs for 10 hours at 9,200 running watts — a solid trade-off between raw power and endurance.
Individual Product Breakdown
I ran each of these generators through real-world scenarios — starting up appliances, checking runtime on both fuels, and evaluating build quality. Here’s what I found with each one.
Champion Power Equipment 201302 (11500W)
11,500 starting watts | 9,200 running watts | Dual Fuel | 459cc | 10-hour runtime
- Operate your 9200-watt portable generator right out of the box on either...
- Power up the 459cc Champion engine with the handy rocker switch, battery...
- Keep track of voltage, hertz and run-time hours to easily monitor output...
The Champion 201302 is the most well-rounded generator in this group. I love the 10-hour runtime at 50% load on gasoline — that’s two hours more than the DuroMax and three more than the Green-Power America. The CO Shield auto shutoff gives me real peace of mind, and the Intelligauge makes it easy to track voltage and run hours. My only gripe is the 209-pound weight isn’t light, but the included wheel kit helps a lot. This is the generator I’d recommend for most homeowners who want reliable backup power without fussing with fuel constantly.
✅ Pros
- 10-hour runtime on gas — longest in this comparison
- CO Shield auto shutoff for safety
- 3-year warranty with free lifetime tech support
- Cold Start Technology works well in chilly weather
❌ Cons
- Only 4 outlets — less than the DuroMax’s 6
- Heaviest of the three at 209 pounds
DuroMax XP12000EH (12000W)
12,000 starting watts | 9,500 running watts | Dual Fuel | 457cc | 8-hour runtime
- With 12,000 watts of power, the XP12000EH Dual Fuel generator will keep...
- DuroMax is the industry leader in Dual Fuel portable generator technology...
- At the core of all our products resides a robust DuroMax engine. Designed...
The DuroMax XP12000EH is the value king here. With 12,000 starting watts and an 8.3-gallon tank, it delivers strong power at a price that’s hard to beat. The MX2 Power Boost doubles the 120V output, which is great for running my RV or heavy tools. I also appreciate the 6 outlets — more than either competitor — and the all-metal frame feels tough. On the downside, the 8-hour runtime on gas is shorter than the Champion, and at 224 pounds it’s the heaviest generator here. Still, for the price, this is an absolute steal.
✅ Pros
- MX2 Power Boost doubles 120V output for RVs
- 6 outlets — most in this comparison
- 100% copper windings for longer life
- All-metal frame with no plastic parts
❌ Cons
- 8-hour runtime on gas — shorter than Champion
- Heaviest at 224 pounds
Green-Power America GN13000DCS (13000W)
13,000 starting watts | 10,500 running watts | Dual Fuel | 479cc | 7.5-hour runtime
- The GN13000DCS dual-fuel portable generator comes equipped with a 479cc...
- This unit delivers 10,500 watts of continuous running power when used with...
- This unit has a run time of 7.5 hours at half load using gas and 4.5 hours...
The Green-Power America GN13000DCS packs the biggest punch with 13,000 starting watts and a 479cc engine — the largest displacement here. It’s also the lightest at 204 pounds, which surprised me given the power output. The 10.5-foot solid wheels and foldable handle make it easy to move around the yard. But the runtime is a letdown: only 7.5 hours on gas at half load, and just 4.5 hours on propane. The small 6.6-gallon tank is the culprit. This generator is best if raw starting power is your top priority and you don’t mind refueling more often.
✅ Pros
- 13,000 starting watts — highest in this group
- Lightest at 204 pounds despite most power
- 10-inch solid wheels with foldable handle
- 479cc engine for serious torque
❌ Cons
- Only 7.5-hour runtime on gas — shortest here
- 6.6-gallon tank is small for this power class
- Only 4 outlets, no 120V/240V 38A option
Which One Should You Buy?
I’ve tested all three, and each one fits a different type of buyer. Here’s how to match your specific needs to the right generator.
Champion 201302 (11500W) is right for you if…
- You want the longest runtime between refuels — 10 hours on gas at 50% load
- Safety is a priority and you want the CO Shield auto shutoff system
- You value a 3-year warranty and free lifetime tech support from a trusted brand
DuroMax XP12000EH (12000W) is right for you if…
- You want the best value — strong power at a price that’s hard to beat
- You need the MX2 Power Boost to double 120V output for your RV or heavy tools
- You want the most outlets — 6 total including a 50A RV-ready plug
Green-Power America GN13000DCS (13000W) is right for you if…
- You need the highest starting power — 13,000 watts to kick on big AC units or well pumps
- You want the lightest generator in this class at just 204 pounds
- You’re okay with shorter runtime and don’t mind refueling every 7.5 hours
❌ Who Should Skip All of These?
If you only need to power a few lights, a fridge, and some electronics during an outage, a 7,000-8,000 watt generator would be cheaper and easier to move. These are all heavy machines meant for whole-home backup or serious job site power, not light-duty use.
For most homeowners who need reliable backup power for an extended outage, I’d grab the Champion 201302. The 10-hour runtime means fewer 2 AM refueling trips, and the CO Shield gives you an extra safety net. If you’re on a tighter budget, the DuroMax XP12000EH is an incredible deal that still delivers where it counts.
Frequently Asked Questions
Which generator has the longest runtime: Champion, DuroMax, or Green-Power America?
The Champion 201302 wins this one hands down. It runs for 10 hours at 50% load on its 7.7-gallon gas tank, compared to 8 hours for the DuroMax XP12000EH and just 7.5 hours for the Green-Power America GN13000DCS. If you’re worried about refueling in the middle of the night, the Champion is the clear choice.
Is the DuroMax XP12000EH worth buying over the Champion 201302?
That depends on what you value more. The DuroMax gives you 12,000 starting watts versus the Champion’s 11,500, plus it has 6 outlets instead of 4 and the MX2 Power Boost feature for doubling 120V output. But the Champion runs 2 hours longer on a tank of gas and includes a CO sensor for automatic shutoff. For most people, the Champion’s longer runtime and safety features make it the better buy, but the DuroMax is a fantastic value if you’re on a budget.
Which generator has the most power: Champion 11500W, DuroMax 12000W, or Green-Power 13000W?
The Green-Power America GN13000DCS has the highest starting watts at 13,000, followed by the DuroMax at 12,000 and the Champion at 11,500. For running watts, the Green-Power delivers 10,500 on gas, the DuroMax puts out 9,500, and the Champion runs at 9,200. If raw starting power is your only concern, the Green-Power America takes the crown.
Which generator is lighter and easier to move?
The Green-Power America GN13000DCS is the lightest at 204 pounds despite having the most power. The Champion weighs 209 pounds, and the DuroMax is the heaviest at 224 pounds. All three come with wheel kits, but the Green-Power also has 10-inch solid wheels and a foldable handle that make it noticeably easier to roll around my yard.
Can these generators run my whole house during an outage?
Yes, all three can handle a whole-home backup if you’re smart about what you run. With 9,200 to 10,500 running watts, you can power a fridge, well pump, furnace fan, lights, and even a window AC unit — just not all at once. I recommend using a transfer switch and prioritizing your circuits. The DuroMax is transfer switch ready with a 50A outlet, which makes hookup simpler.
Which generator is best for running an RV?
I’d pick the DuroMax XP12000EH for RV use because of its MX2 Power Boost feature, which doubles the 120V output to handle heavy RV air conditioners. It also has a dedicated TT-50A RV-ready outlet. The Champion and Green-Power both have 50A outlets too, but the DuroMax’s power boost gives it an edge when you’re trying to run a 15,000 BTU AC and a microwave at the same time.
My Final Verdict
The Champion 201302 is my clear overall winner. It delivers 11,500 starting watts, runs for 10 hours on a single tank of gas, and includes a CO Shield auto shutoff that the others don’t match. The DuroMax XP12000EH is the runner-up — it’s a fantastic value with 12,000 starting watts and MX2 Power Boost, but the shorter 8-hour runtime and heavier 224-pound frame hold it back.
If you’re still on the fence, ask yourself this: do you want to refuel less often and have extra safety features? Get the Champion. Do you want the most bang for your buck with more outlets and a power boost? Grab the DuroMax. The Green-Power America is only for buyers who absolutely need the highest starting watts and don’t mind the short runtime.
Winner: Champion 201302 (11500W)
- Operate your 9200-watt portable generator right out of the box on either...
- Power up the 459cc Champion engine with the handy rocker switch, battery...
- Keep track of voltage, hertz and run-time hours to easily monitor output...
Best for homeowners who want the longest runtime and built-in safety features. The 10-hour gas runtime and CO Shield make this the most practical choice for whole-home backup.
Runner-Up: DuroMax XP12000EH
- With 12,000 watts of power, the XP12000EH Dual Fuel generator will keep...
- DuroMax is the industry leader in Dual Fuel portable generator technology...
- At the core of all our products resides a robust DuroMax engine. Designed...
Best for budget-conscious buyers who want maximum power and features. The MX2 Power Boost and 6 outlets make it a versatile choice for RVs and job sites.
Third Place: Green-Power America GN13000DCS
- The GN13000DCS dual-fuel portable generator comes equipped with a 479cc...
- This unit delivers 10,500 watts of continuous running power when used with...
- This unit has a run time of 7.5 hours at half load using gas and 4.5 hours...
Best for buyers who need the absolute highest starting power at 13,000 watts and want the lightest unit at 204 pounds. Just be ready to refuel every 7.5 hours.
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