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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.

  • Firman P03613
  • Yamaha EF5500D
  • Model P03613
    Model P03613

    Firman 3,650W Gas Generator

    3650W
    Running
    67 dB
    Noise
    View details
  • Model EF5500D
    Model EF5500D

    Yamaha 4,500W Gas Generator

    4500W
    Running
    74.1 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
SpecificationFirman P03613Yamaha EF5500D
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
3650 W
Winner: Winner: 4500 W
Starting watts
4550 W
Winner: Winner: 5500 W
Noise (lower limit)
Winner: Winner: 67 dB
74.1 dB
Weight
Winner: Winner: 108.5 lbs
216.1 lbs
Run time @50% load
Winner: Winner: 14 h
13.5 h
Run time @25% load
Not available
Not available
Fuel tank
5 gal
6.9 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
24.8 x 21.7 x 21.7
29.1 x 29 x 31.5 in
Electrical
Voltage (AC)
120
120/240V 60 Hz
Voltage (DC)
Not available
Not available
GFCI outletsNoYes
Covered outletsYesNo
Automatic Voltage RegulationYesYes
THD
25 %
Not available
Engine
Engine
208 Firman Max-Pro Series OHV 4-stroke, cast iron sleeve
Yamaha MZ360 OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil
Recoil
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
3650 W
4500 W
Starting watts
4550 W
5500 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
14 h
13.5 h
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA, ANSI/PGMA G300-2023
CARB, EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
true
UPC
840876136133
Not available
Core / High-priority specs
Running Watts (Gasoline)
3650
4500
Starting Watts (Gasoline)
4550
5500
Runtime @ 50% Load (Gasoline)
14
13.5
AC Outlet Types
1x Duplex 120V 20 (5-20R); 1x 120V 30 (L5-30R); 1x 120V 30 (TT-30R)
2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Firman Max-Pro Series OHV 4-stroke
OHV 4-stroke
Engine Displacement
208
358
Cylinder Sleeve
Cast iron sleeve
Not available
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
14
13.5
Safety & compliance
Overload Protection System
Low oil and overload protection
Not available
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Not available
Yes
Included Accessories
Oil, funnel, tool kit, and wheel kit
Tool kit and wheel kit
Warranty & identification
Commercial Warranty
3
Not available
Part Number
Not available
EF55DZ1
Additional specs
Summary
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.
The Yamaha EF5500D is a 5500-watt generator designed for emergency backup, recreational use, and DIY projects. It features a 358cc OHV engine, dual voltage output, and offers up to 9 hours of continuous operation at rated load.
  • Most Powerful
    Yamaha EF5500D
    4500W running
  • Quietest
    Firman P03613
    67 dB
  • Longest Runtime
    Firman P03613
    14h at 50% load
Where to buy
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Firman P03613
Store links
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Yamaha EF5500D
Store links
No links yet.
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