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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 P06701
  • Generac #8150 GP5500E
  • Model P06701
    Model P06701

    Firman 6,700W Gas Generator

    6700W
    Running
    74 dB
    Noise
    View details
  • Model #8150 GP5500E
    Model #8150 GP5500E

    Generac 5,500W Gas Generator

    5500W
    Running
    0 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 P06701Generac #8150 GP5500E
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 6700 W
5500 W
Starting watts
Winner: Winner: 8350 W
6875 W
Noise (lower limit)
Winner: Winner: 74 dB
0 dB
Weight
178 lbs
Winner: Winner: 163 lbs
Run time @50% load
Winner: Winner: 12 h
10.5 h
Run time @25% load
Not available—
13.4 h
Fuel tank
8 gal
5.4 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
28.4 x 27.5 x 26.8
30 x 27 x 25
Electrical
Voltage (AC)
120/240V 60 Hz
120/240
Voltage (DC)
Not available—
Not available—
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available—
Not available—
Engine
Engine
389 cc OHV 4-stroke, cast iron sleeve
Generac OHV 4-stroke
Alternator
Not available—
Not available—
Starting system
Recoil
Recoil, Electric
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot available—Not available—
Running watts
6700 W
5500 W
Starting watts
8350 W
6875 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
12 h
10.5 h
Run time @25% load
Not available—
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
false
Compliance
EPA
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
true
true
UPC
840876167014
696471104639
Core / High-priority specs
Running Watts (Gasoline)
6700
5500
Starting Watts (Gasoline)
8350
6875
Runtime @ 50% Load (Gasoline)
12
10.5
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke, cast iron sleeve
OHV 4-stroke
Engine Displacement
389
298
Cylinder Sleeve
cast iron sleeve
Not available—
Engine Oil Type
Not available—
5W-30
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
12
10.5
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Mobility Components
Not available—
Yes
Starting Components
Recoil
Recoil, Electric
Included Accessories
Oil, funnel, tool kit, cover, and wheel kit
Oil, Funnel, Tool Kit, Battery, and Wheel Kit
Warranty & identification
Commercial Warranty
3
2
Part Number
Not available—
8150
Additional specs
Summary
The Firman P06701 is a 6700-watt gasoline generator built around a 389cc OHV 4-stroke engine with a cast iron sleeve. This wattage class powers essential home appliances, job site tools, and outdoor event equipment simultaneously. The 8-gallon fuel tank stretches runtime to 12 hours at half load, meaning users refuel once per day under moderate use rather than every few hours. At 74 decibels, the noise level matches a vacuum cleaner, loud enough to require distance from neighbors but typical for this power class. The recoil starting system is mechanically simple and reliable, though it demands physical effort on cold mornings or after storage.
The Generac GP5500E is a 5,500 watt gasoline generator built to power whole house essentials during outages or on job sites. Its 6,875 starting watts handle motor driven appliances like well pumps and air conditioners that demand heavy inrush current. For homeowners and contractors who want reliable backup without crossing into stationary generator territory, the GP5500E delivers meaningful output with the refueling simplicity of gasoline.
  • Most Powerful
    Firman P06701
    6700W running
  • Quietest
    Firman P06701
    74 dB
  • Longest Runtime
    Firman P06701
    12h at 50% load
Where to buy
Prices can change. We update these automatically.
Firman P06701
Store links
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Generac #8150 GP5500E
Store links
No links yet.
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