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

  • Ford FG28KVTWTCO
  • Generac #7705 GP15500EFI
  • Model FG28KVTWTCO
    Model FG28KVTWTCO

    Ford 20,000W Tri-Fuel Generator

    20000W
    Running
    99.7 dB
    Noise
    View details
  • Model #7705 GP15500EFI
    Model #7705 GP15500EFI

    Generac 15,500W Gas Generator

    15500W
    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
SpecificationFord FG28KVTWTCOGenerac #7705 GP15500EFI
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyYesYes
Running watts
Winner: Winner: 20000 W
15500 W
Starting watts
Winner: Winner: 28000 W
19300 W
Noise (lower limit)
Winner: Winner: 99.7 dB
0 dB
Weight
557 lbs
Winner: Winner: 420 lbs
Run time @50% load
10.8 h
Winner: Winner: 11 h
Run time @25% load
Not available
Not available
Fuel tank
17.17 gal
14.2 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
39.7 x 27.5 x 45.2
58.5 x 30.9 x 36.5
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
<5% %
Engine
Engine
999 cc OHV V-Twin
Generac G-Force OVHI 4-stroke
Alternator
Not available
Not available
Starting system
Electric, Remote
Electric
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
20000 W
15500 W
Starting watts
28000 W
19300 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
10.8 h
11 h
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
false
false
Compliance
EPA, ANSI/PGMA G300-2023
EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
true
true
UPC
814726029418
696471083705
Core / High-priority specs
Running Watts (Gasoline)
20000
15500
Starting Watts (Gasoline)
28000
19300
Runtime @ 50% Load (Gasoline)
10.8
11
AC Outlet Types
2x Duplex 120V 20A GFCI; 1x 120V 30A (L5-30R); 2x 120/240V 30A (L14-30R); 2x 120/240V 50A (14-50R)
2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV V-Twin
G-Force OVHI 4-stroke
Engine Displacement
999
816
Engine Oil Type
SAE 10W-30
10W-30 / SAE 30
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
10.8
11
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection, CO monitoring
Low Oil ProtectionNoYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Oil, funnel, tool kit, key fob, natural gas hose with NPT adapter, propane hose, battery, and wheel kit
Oil, battery, and wheel kit
Warranty & identification
Commercial Warranty
3
3
Additional specs
Summary
The Ford FG28KVTWTCO is a 20,000-watt tri-fuel generator built for whole-home backup, commercial job sites, and stationary power delivery. It runs on gasoline, propane, or natural gas, eliminating single-source fuel dependency. At 557 pounds with a 39.7 x 27.5 x 45.2 inch footprint, this is a semi-permanent installation that demands dedicated storage and logistical planning.
The Generac #7705 GP15500EFI is a 15,500-watt gasoline generator built for whole-house backup and RV power. Electronic Fuel Injection adjusts fuel delivery based on load, meaning the engine burns only what it needs rather than running at a fixed rate. At this wattage, it can run central air conditioning, a well pump, kitchen appliances, and multiple lighting circuits simultaneously, functioning as a realistic alternative to a permanently installed standby system without the installation cost or natural gas hookup.
  • Most Powerful
    Ford FG28KVTWTCO
    20000W running
  • Quietest
    Ford FG28KVTWTCO
    99.7 dB
  • Longest Runtime
    Generac #7705 GP15500EFI
    11h at 50% load
Where to buy
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Ford FG28KVTWTCO
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Generac #7705 GP15500EFI
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