Compare Generators Side-by-Side

Generator

Generator

5000 W

230 lbs

20 h

19 h

120

120/240

223 cc OHV 4-stroke, cast iron sleeve.

457 cc OHV 4-stroke, cast iron sleeve

Recoil

Recoil, Electric

3 years

5 years

5000 W

12000 W

20 h

19 h

9025 W

3.5 h

CARB, EPA, ANSI/PGMA G300-2023

CARB, EPA

850016881298

811640016227

4000

9500

5000

12000

9

20

19

2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120V 30A (TT-30R)

2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)

60

60

OHV 4-stroke

OHV 4-stroke

cast iron sleeve

Cast iron sleeve

20

19

3.5

Low oil and overload protection, CO monitoring

Low oil and overload protection

Recoil, Electric

5

The A-iPower GXS5000 is a 4000-watt gasoline generator built for homeowners and RV users who need reliable backup power without excessive noise. With 5000 watts of starting power, it can kick-start larger appliances like air conditioners and well pumps, then sustain 4000 watts of continuous output for essential devices. This wattage class handles a full home backup scenario or powers a job site with moderate tool use, but not heavy industrial equipment or multiple high-draw appliances simultaneously. At 68 decibels, the GXS5000 runs quieter than most generators in its class. The 6.3-gallon fuel tank delivers 20 hours of runtime at 25 percent load, meaning light-duty use like charging devices or running a refrigerator stretches a full tank across an entire day. The recoil start system and included wheel kit make this a grab-and-go option for users who value simplicity over push-button convenience.

The DuroMax XP12000HX is a 9,500-watt dual-fuel generator built for job sites, home backup, and RV use. Its 12,000-watt peak capacity handles the startup surge of air conditioners, compressors, and welders, while the 9,500-watt running output sustains multiple heavy tools or household circuits simultaneously. Gasoline delivers 19 hours of runtime at quarter load, making this unit suitable for extended outages or multi-day events without constant refueling. The dual-fuel design means users can switch between gasoline and propane depending on fuel availability and storage constraints. On propane at 25% load, runtime drops to 7 hours, trading endurance for cleaner emissions and longer shelf life. The 457 cc cast iron engine is built for durability on job sites where generators take abuse. This is a stationary workhorse, not a portable grab-and-go unit.