
Honda EU3000iS vs Genmax GM2800iAE
Honda EU3000iS runs quieter and far longer, while Genmax GM2800iAE is much lighter and cheaper for light-duty portable power.
- Genmax GM2800iAE
- Honda EU3000iS
Comparison Overview
The biggest real-world difference is endurance and refinement: the Honda EU3000iS is rated at 50 dB and runs up to 20 hours at 25% load, while the Genmax GM2800iAE is louder at 62 dB and lists 10 hours at 25% load. If you want long, quiet overnight power, the Honda’s advantage is hard to ignore.
On output, they are close enough for many common loads. The Honda delivers 2800 running watts and 3000 starting watts, while the Genmax provides 2500 running watts and 2800 starting watts. That gap can matter for higher-starting appliances (like some RV air conditioners or well pumps), but for battery charging, lights, a fridge, and small tools, both inverter designs are aimed at clean, stable power.
Portability is where the Genmax flips the script. At 54 lb, it is dramatically easier to lift and store than the Honda at 130.7 lb. Warranty also differs, Honda is 3 years vs Genmax at 1 year. Pick Honda for quieter, longer, more confidence-focused use, or Genmax for lighter, simpler grab-and-go power.
Key takeaways
- Honda EU3000iS runs quieter at 50 dB, Genmax GM2800iAE is 62 dB.
- Honda EU3000iS delivers 2800 running watts, Genmax GM2800iAE delivers 2500 running watts.
- Honda EU3000iS runs up to 20 hours at 25% load, Genmax lists 10 hours.
- Genmax GM2800iAE weighs 54 lb, Honda EU3000iS weighs 130.7 lb.
- Honda EU3000iS includes a 3-year warranty, Genmax GM2800iAE includes 1 year.
Best use cases
Choose the Honda EU3000iS if you want a quieter generator for long stretches, especially for camping, RVing in noise-sensitive areas, or home backup where you may run it for many hours at a time. Its 50 dB rating and up to 20 hours at 25% load can translate to fewer refuels and less disruption overnight. The slightly higher output, 2800 running watts and 3000 starting watts, also gives you a bit more breathing room for loads that surge at startup, like some larger refrigerators, freezers, or an RV air conditioner that is right on the edge. The tradeoff is convenience: at 130.7 lb, it is not something most people want to lift into a truck alone, and it takes more commitment to move around.
Choose the Genmax GM2800iAE if portability and occasional-use convenience matter most. At 54 lb, it is far easier to carry to a campsite, tailgate, or to pull out during a short outage to keep essentials going. With 2500 running watts and 2800 starting watts, it can still handle many practical loads like a fridge, lights, device charging, a TV, and smaller power tools, as long as you avoid stacking too many high-draw items at once. The tradeoffs are that it is noticeably louder at 62 dB, and the listed runtime is shorter at 10 hours at 25% load, meaning more frequent refueling for longer events. The 1-year warranty also suggests it is better suited to lighter-duty expectations than long-term, heavy reliance.
Verdict & recommendation
If your priority is the most comfortable day-to-day experience, quieter operation, and fewer refueling stops, the Honda EU3000iS is the better fit on paper with 50 dB noise and up to 20 hours at 25% load. It also brings a bit more headroom at 3000 starting watts and a longer 3-year warranty, which can matter if you expect to depend on it regularly.
If your priority is easy handling and storage, the Genmax GM2800iAE stands out because it weighs only 54 lb, making it much more realistic for one-person transport. You give up runtime, some surge capacity, and you will hear it more at 62 dB, but it can be a practical choice for lighter, shorter-duration needs. In the end, choose based on how often you will run it and how much you value quiet, long runtime versus low weight.
Last updated February 23, 2026
| Specification | Genmax GM2800iAE | Honda EU3000iS |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | Yes | No |
| Running watts | 2500 W | Winner: Winner: 2800 W |
| Starting watts | 2800 W | Winner: Winner: 3000 W |
| Noise (lower limit) | 62 dB | Winner: Winner: 50 dB |
| Weight | Winner: Winner: 54 lbs | 130.7 lbs |
| Run time @50% load | Not available | Winner: Winner: 10 h |
| Run time @25% load | 10 h | 20 h |
| Fuel tank | 1.7 gal | 3.4 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 20.7 x 12.2 x 19.7 | 25.9 x 17.6 x 22 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 3 % | <3% % |
| Engine | ||
| Engine | 145 cc Dinking OHV 4-stroke | 196 cc Honda GX200 OHV 4-stroke, Cast iron sleeve. |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil, Electric |
| Warranty | ||
| Warranty | 1 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 2500 W | 2800 W |
| Starting watts | 2800 W | 3000 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | Not available | 10 h |
| Run time @25% load | 10 h | 20 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA, ANSI/PGMA G300-2023 | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Floating |
| UPC | Not available | 786102007320 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 2500 | 2800 |
| Starting Watts (Gasoline) | 2800 | 3000 |
| Runtime @ 50% Load (Gasoline) | Not available | 10 |
| Runtime @ 25% Load (Gasoline) | 10 | 20 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R) | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | Dinking OHV 4-stroke | 196 cc Honda GX200 OHV 4-stroke, Cast iron sleeve |
| Engine Displacement | 145 | 196 |
| Cylinder Sleeve | Not available | Cast iron sleeve |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 10 | 20 |
| Runtime @ 50% Load (Gasoline) | Not available | 10 |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Not available | Recoil, Electric |
| Included Accessories | Not available | Battery |
| Warranty & identification | ||
| Part Number | Not available | EU3000iS1AN |
| Additional specs | ||
| Summary | The Genmax GM2800iAE is a 2800-watt gasoline inverter generator with CO Detect, suitable for emergency home power, outdoor activities, and RV use. Its inverter technology ensures clean power for sensitive electronics and it features multiple starting options for convenience. | The Honda EU3000iS is a 3000-watt inverter generator fueled by gasoline. It offers reliable power output with a starting wattage of 3000 watts and a rated running wattage of 2800 watts, making it suitable for a variety of applications. |
- Most PowerfulHonda EU3000iS2800W running
- QuietestHonda EU3000iS50 dB
- Longest RuntimeHonda EU3000iS10h at 50% load


