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

  • A-iPower SUA4500
  • Firman P03613
  • Model SUA4500
    Model SUA4500

    A-iPower 3,500W Gas Generator

    3500W
    Running
    68 dB
    Noise
    View details
  • Model P03613
    Model P03613

    Firman 3,650W Gas Generator

    3650W
    Running
    67 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 SUA4500Firman P03613
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoYes
Running watts
3500 W
Winner: Winner: 3650 W
Starting watts
4500 W
Winner: Winner: 4550 W
Noise (lower limit)
68 dB
Winner: Winner: 67 dB
Weight
111 lbs
Winner: Winner: 108.5 lbs
Run time @50% load
11 h
Winner: Winner: 14 h
Run time @25% load
14 h
Not available
Fuel tank
4 gal
5 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
23.4 x 22.8 x 22.6
24.8 x 21.7 x 21.7
Electrical
Voltage (AC)
120/240
120
Voltage (DC)
Not available
Not available
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available
25 %
Engine
Engine
Senci OHV 4-stroke, cast iron sleeve
208 Firman Max-Pro Series OHV 4-stroke, cast iron sleeve
Alternator
Not available
Not available
Starting system
Recoil
Recoil
Warranty
Warranty
2 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
3500 W
3650 W
Starting watts
4500 W
4550 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
11 h
14 h
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
CARB, EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
true
Floating
UPC
851217006077
840876136133
Core / High-priority specs
Running Watts (Gasoline)
3500
3650
Starting Watts (Gasoline)
4500
4550
Runtime @ 50% Load (Gasoline)
11
14
AC Outlet Types
2x Duplex 120V 20A (5-20R) 1x 120/240V 30A (L14-30R)
1x Duplex 120V 20 (5-20R); 1x 120V 30 (L5-30R); 1x 120V 30 (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
Firman Max-Pro Series OHV 4-stroke
Engine Displacement
223
208
Cylinder Sleeve
cast iron sleeve
Cast iron sleeve
Engine Oil Type
SAE 10W-30
Not available
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
11
14
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Starting Components
Recoil
Not available
Included Accessories
Oil, tool kit, and wheel kit
Oil, funnel, tool kit, and wheel kit
Warranty & identification
Commercial Warranty
2
3
Additional specs
Summary
The A-iPower SUA4500 is a 3,500-watt running generator built around a 223cc OHV 4-stroke engine with cast iron sleeves. This wattage class handles essential household appliances, power tools, and small job site equipment without breaking into the heavy-duty contractor tier. The 4,500-watt peak output gives it enough surge capacity to start refrigerators, air compressors, and welders that draw high inrush current. Gasoline fuel means quick refueling at any gas station, and the 4-gallon tank stretches runtime to 14 hours at quarter load or 11 hours at half load. That refueling cycle keeps users in the field longer without constant tank swaps.
The Firman P03613 delivers 3650 running watts from a 208cc gasoline engine, making it capable of powering multiple household appliances simultaneously or running job site tools continuously. At this wattage level, users can operate a refrigerator, microwave, and several power tools at once, or run an RV's air conditioning and appliances during camping trips. The 4550 peak watts handle the startup surge of compressors and motors. Because the unit runs on gasoline, fuel is readily available at any gas station, and the 5-gallon tank stretches runtime to 14 hours at half load, meaning users can power a job site or campsite through a full workday without refueling. The 67 decibel noise level sits between a vacuum cleaner and normal conversation, allowing operation in residential neighborhoods without excessive disruption. Inclusion of a wheel kit and 108.5 pound weight means this generator requires some effort to move but remains transportable for most users.
  • Most Powerful
    Firman P03613
    3650W running
  • Quietest
    Firman P03613
    67 dB
  • Longest Runtime
    Firman P03613
    14h at 50% load
Where to buy
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A-iPower SUA4500
Store links
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Firman P03613
Store links
No links yet.
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