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

  • Firman T08072
  • WEN TF1450
  • Model T08072
    Model T08072

    Firman 8,000W Tri-Fuel Generator

    8000W
    Running
    74 dB
    Noise
    View details
  • Model TF1450
    Model TF1450

    WEN 11,500W Tri-Fuel Generator

    11500W
    Running
    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 T08072WEN TF1450
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Tri-Fuel
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
8000 W
Winner: Winner: 11500 W
Starting watts
10000 W
Winner: Winner: 14500 W
Noise (lower limit)
Winner: Winner: 74 dB
Not available
Weight
Winner: Winner: 213 lbs
224.9 lbs
Run time @50% load
Winner: Winner: 12 h
Winner: Winner: 12 h
Run time @25% load
12 h
Not available
Fuel tank
8 gal
8.2 gal
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
29.8 x 27.5 x 26.1
28.8 x 28.3 x 25.8
Electrical
Voltage (AC)
120/240
120V / 240V
Voltage (DC)
Not available
12
GFCI outletsYesNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
Not available
Not available
Engine
Engine
439 cc OHV 4-stroke.
OHV, 4 Stroke, Single Cylinder
Alternator
Not available
Not available
Starting system
Recoil, Electric
Not available
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
8000 W
11500 W
Starting watts
10000 W
14500 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
12 h
Run time @25% load
Not available
Not available
Natural gasNot availableNot available
Running watts
5500 W
8750 W
Starting watts
6900 W
10500 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
Not available
Not available
PropaneNot availableNot available
Running watts
7250 W
10300 W
Starting watts
9050 W
12500 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
6 h
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
11500
Running Watts (Propane)
7250
10300
Running Watts (Natural Gas)
5500
8750
Starting Watts (Gasoline)
10000
14500
Starting Watts (Propane)
9050
12500
Starting Watts (Natural Gas)
6900
10500
Runtime @ 50% Load (Gasoline)
12
12
Runtime @ 50% Load (Propane)
Not available
6
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)
Four 120V 5-20R, 120V/240V 30A L14-30R, 120V/240V 50A 14-50R
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
439 cc OHV 4-stroke
OHV, 4-Stroke, Single Cylinder
Engine Displacement
439
500
Cylinder Sleeve
Cast iron sleeve
Not available
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
12
12
Runtime @ 50% Load (Propane)
Not available
6
Outlets & connections
Transfer Switch Compatibility
Not available
Yes
Controls & display
Display Type
Not available
Digital data meter
Safety & compliance
Overload Protection System
Low oil and overload protection.
Not available
Low Oil ProtectionYesNo
Carbon Monoxide MonitoringYesNo
Included equipment
Mobility Components
Yes
Wheel and handle kit
Fuel Connection Components
Not available
NG quick-connect adapter
Included Accessories
Oil, funnel, tool kit, natural gas hose with NPT adapter, propane hose, battery, and wheel kit.
Oil, 6-foot LPG connection hose
Warranty & identification
Residential Warranty
Not available
3
Commercial Warranty
3
3
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 WEN TF1450 is a tri-fuel generator with a rated wattage of 10300 and a peak wattage of 12500. It features a single-phase, OHV 4-stroke single cylinder engine.
  • Most Powerful
    WEN TF1450
    11500W running
  • Quietest
    Firman T08072
    74 dB
  • Longest Runtime
    Firman T08072
    12h at 50% load
Where to buy
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Firman T08072
Store links
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WEN TF1450
Store links
No links yet.
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