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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 T08072
  • Predator 71386
  • Model T08072
    Model T08072

    Firman 8,000W Tri-Fuel Generator

    8000W
    Running
    74 dB
    Noise
    View details
  • Model 71386
    Model 71386

    Predator 10,000W Tri-Fuel Generator

    10000W
    Running
    78.5 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 T08072Predator 71386
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Tri-Fuel
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
8000 W
Winner: Winner: 10000 W
Starting watts
10000 W
Winner: Winner: 13000 W
Noise (lower limit)
Winner: Winner: 74 dB
78.5 dB
Weight
Winner: Winner: 213 lbs
226 lbs
Run time @50% load
12 h
Winner: Winner: 12.1 h
Run time @25% load
12 h
Not available—
Fuel tank
8 gal
Not available—
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
29.8 x 27.5 x 26.1
30.25 x 29.2 x 27.2
Electrical
Voltage (AC)
120/240
120/240V
Voltage (DC)
Not available—
Not available—
GFCI outletsYesNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
Not available—
Not available—
Engine
Engine
439 cc OHV 4-stroke.
Not available—
Alternator
Not available—
Not available—
Starting system
Recoil, Electric
Not available—
Warranty
Warranty
3 years
Not available—
Power by fuel
GasolineNot available—Not available—
Running watts
8000 W
Not available—
Starting watts
10000 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
12 h
Not available—
Run time @25% load
Not available—
Not available—
Natural gasNot available—Not available—
Running watts
5500 W
Not available—
Starting watts
6900 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
7250 W
Not available—
Starting watts
9050 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—
Other
Data center
Not available—
Not available—
Indicators
true
Not available—
Compliance
CARB, EPA, ANSI/PGMA G300-2023
Not available—
Security
Not available—
Not available—
Spark arrestorYesNo
Neutral
Bonded to frame.
Not available—
UPC
840876180723
Not available—
Core / High-priority specs
Running Watts (Gasoline)
8000
Not available—
Running Watts (Propane)
7250
Not available—
Running Watts (Natural Gas)
5500
Not available—
Starting Watts (Gasoline)
10000
Not available—
Starting Watts (Propane)
9050
Not available—
Starting Watts (Natural Gas)
6900
Not available—
Runtime @ 50% Load (Gasoline)
12
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
439 cc OHV 4-stroke
Not available—
Engine Displacement
439
458
Cylinder Sleeve
Cast iron sleeve
Not available—
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
12
Not available—
Safety & compliance
Overload Protection System
Low oil and overload protection.
Not available—
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Yes
Not available—
Included Accessories
Oil, funnel, tool kit, natural gas hose with NPT adapter, propane hose, battery, and wheel kit.
Not available—
Warranty & identification
Commercial Warranty
3
Not available—
Additional specs
Summary
The Firman T08072 is an 8,000-watt tri-fuel generator built for users who need flexibility across fuel sources and sustained power output. Running on gasoline, propane, or natural gas, this unit delivers 10,000 peak watts on startup, enough to handle simultaneous demands like air compressors, power tools, and household appliances. The tri-fuel capability means users can switch fuels based on availability and cost, a significant advantage for job sites, RV travel, or emergency backup where fuel supply chains vary. On gasoline, the T08072 runs at full 8,000 watts. On propane, output drops to 7,250 watts. On natural gas, it falls to 5,500 watts. This tiered output reflects the energy density of each fuel type and shapes what users can realistically power during extended outages or remote work. The 8-gallon tank delivers 12 hours of runtime at both 25% and 50% load on gasoline, meaning users can operate a moderate load overnight without refueling. For job sites and backup power scenarios, this runtime eliminates mid-shift fuel stops.
The PREDATOR 13,000 Watt Tri-Fuel Portable Generator offers versatile power options, running on gasoline, propane, or natural gas. It features a remote start capability and CO SECURE Technology for enhanced safety, making it suitable for emergencies, jobsites, and home backup.
  • Most Powerful
    Predator 71386
    10000W running
  • Quietest
    Firman T08072
    74 dB
  • Longest Runtime
    Predator 71386
    12.1h at 50% load
Where to buy
Prices can change. We update these automatically.
Firman T08072
Store links
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Predator 71386
Store links
No links yet.
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