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Compare Generators Side-by-Side

Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • A-iPower GXS11300RT
  • Powerhorse s15000d
  • Model GXS11300RT
    Model GXS11300RT

    A-iPower 9,000W Tri-Fuel Generator

    9000W
    Running
    78 dB
    Noise
    View details
  • Model s15000d
    Model s15000d

    Powerhorse 12,000W Dual-Fuel Generator

    12000W
    Running
    97 dB
    Noise
    View details
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
Generator Specifications Comparison
SpecificationA-iPower GXS11300RTPowerhorse s15000d
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Dual-Fuel
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
9000 W
Winner: Winner: 12000 W
Starting watts
11300 W
Winner: Winner: 15000 W
Noise (lower limit)
Winner: Winner: 78 dB
97 dB
Weight
Winner: Winner: 224.9 lbs
348 lbs
Run time @50% load
Not available—
Winner: Winner: 10 h
Run time @25% load
18 h
Not available—
Fuel tank
9.5 gal
10.6 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
28.8 x 28 x 26.7
34.3 x 23.2 x 32.9
Electrical
Voltage (AC)
120/240
120/240V 60 Hz
Voltage (DC)
12
12
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available—
<5% %
Engine
Engine
459 cc OHV 4-stroke, cast iron sleeve
713 cc OHV V-Twin
Alternator
Not available—
Not available—
Starting system
Recoil, Electric, Remote
Electric
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot available—Not available—
Running watts
9000 W
Not available—
Starting watts
11300 W
15000 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—
Not available—
Run time @25% load
18 h
Not available—
Natural gasNot available—Not available—
Running watts
7200 W
Not available—
Starting watts
9000 W
Not available—
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—
Not available—
Run time @25% load
Not available—
Not available—
PropaneNot available—Not available—
Running watts
8100 W
10800 W
Starting watts
10100 W
13500 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—
Not available—
Run time @25% load
8 h
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
true
Compliance
CARB, EPA, ANSI/PGMA G300-2023
EPA, ANSI/PGMA G300-2023
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
true
Not available—
UPC
850016881731
840321764027
Core / High-priority specs
Running Watts (Gasoline)
9000
Not available—
Running Watts (Propane)
8100
10800
Running Watts (Natural Gas)
7200
Not available—
Starting Watts (Gasoline)
11300
15000
Starting Watts (Propane)
10100
13500
Starting Watts (Natural Gas)
9000
Not available—
Runtime @ 25% Load (Gasoline)
18
Not available—
Runtime @ 25% Load (Propane)
8
Not available—
AC Outlet Types
1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)
Not available—
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV V-Twin
Engine Displacement
459
713
Cylinder Sleeve
Cast iron sleeve
Not available—
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
18
Not available—
Safety & compliance
Overload Protection System
Not available—
Low oil and overload protection, CO monitoring
Low Oil ProtectionNoYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Not available—
Yes
Starting Components
Not available—
battery charging cables, battery
Included Accessories
Oil, funnel, tool kit, key fob, propane hose, RV adapter, battery charging cables, battery, and wheel kit
Funnel, tool kit, propane hose, battery charging cables, battery, and wheel kit
Warranty & identification
Commercial Warranty
3
Not available—
Part Number
Not available—
6075687
Additional specs
Summary
The A-iPower GXS11300RT is a 9000-watt tri-fuel generator built for users who need flexible fuel options without sacrificing power output. Running on gasoline, propane, or natural gas, this unit delivers 11300 peak watts and 9000 running watts on gasoline, making it capable of powering a full home backup system, supporting a job site, or supplying an RV with consistent electricity. The tri-fuel design means you can switch between fuel types based on availability and cost, a significant advantage for remote locations or long-term deployments where fuel supply chains vary. At 224.9 pounds, this generator demands serious logistical planning. It is not a grab-and-go unit. The included wheel kit and folding handle help, but moving this machine onto a truck bed, across uneven terrain, or into storage requires either multiple people or mechanical assistance. The trade-off is clear: you gain substantial power output and multi-fuel flexibility in exchange for a stationary or semi-portable footprint. For homeowners installing a permanent backup system or contractors setting up a job site power station, the weight is manageable. For users who need to relocate the generator frequently, this becomes a friction point.
The Powerhorse s15000d is a dual-fuel portable generator delivering 15,000 surge watts and 12,000 rated watts, suitable for emergency home backup, EV charging, and demanding worksites.
  • Most Powerful
    Powerhorse s15000d
    12000W running
  • Quietest
    A-iPower GXS11300RT
    78 dB
  • Longest Runtime
    Powerhorse s15000d
    10h at 50% load
Where to buy
Prices can change. We update these automatically.
A-iPower GXS11300RT
Store links
No links yet.
Powerhorse s15000d
Store links
No links yet.
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