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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.

  • Generac #7678 GP3600
  • Aceup Energy AI4000s
  • Model #7678 GP3600
    Model #7678 GP3600

    Generac 3,600W Gas Generator

    3600W
    Running
    0 dB
    Noise
    View details
  • Model AI4000s
    Model AI4000s

    Aceup Energy 3,200W Inverter Generator

    3200W
    Running
    55 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
SpecificationGenerac #7678 GP3600Aceup Energy AI4000s
General
Product type
Generator
Not available—
Fuel
Gasoline
Not available—
InverterNoYes
Parallel capableNoYes
RV readyNoNo
Running watts
Winner: Winner: 3600 W
3200 W
Starting watts
Winner: Winner: 4500 W
4000 W
Noise (lower limit)
0 dB
Winner: Winner: 55 dB
Weight
Winner: Winner: 105 lbs
Not available—
Run time @50% load
Winner: Winner: 9.3 h
8 h
Run time @25% load
Not available—
Not available—
Fuel tank
3.7 gal
1.32 gal
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
24 x 22.5 x 21.3
Not available—
Electrical
Voltage (AC)
120
120V
Voltage (DC)
Not available—
12V
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
Not available—
Not available—
Engine
Engine
Generac OHV 4-stroke 212
4-stroke OHV engine
Alternator
Not available—
Not available—
Starting system
Recoil
Not available—
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot available—Not available—
Running watts
3600 W
3200 W
Starting watts
4500 W
4000 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
9.3 h
Not available—
Run time @25% load
Not available—
Not available—
Other
Data center
Not available—
Not available—
Indicators
false
true
Compliance
CARB
EPA compliant
Security
Not available—
Not available—
Spark arrestorYesNo
Neutral
Not available—
Not available—
UPC
696471074581
Not available—
Core / High-priority specs
Running Watts (Gasoline)
3600
3200
Starting Watts (Gasoline)
4500
4000
Runtime @ 50% Load (Gasoline)
9.3
Not available—
AC Outlet Types
2x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)
One 20A outlet, one L5-30R Twist-Lock receptacle
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
4-stroke OHV engine
Engine Displacement
212
149
Engine Oil Type
10W-30 / SAE 30
Not available—
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
9.3
Not available—
Controls & display
Display Type
Not available—
Intelligent gauge
Idle Control System
Not available—
Economic mode to save fuel
Safety & compliance
Overload Protection System
Low oil and overload protection
Not available—
Low Oil ProtectionYesNo
Carbon Monoxide MonitoringNoNo
Included equipment
Mobility Components
Yes
Not available—
Starting Components
Oil, funnel, tool kit, and wheel kit
Recoil start
Included Accessories
Oil, funnel, tool kit, and wheel kit
Oil funnel * 2; A bottle of Oil; Spark plug wrench
Warranty & identification
Residential Warranty
Not available—
2
Commercial Warranty
Not available—
2
Part Number
7678
AI4000s
Additional specs
Summary
The Generac GP3600 (#7678) is a 3600-watt gasoline generator built for homeowners and job sites needing reliable backup or portable power. Its 4500-watt peak capacity handles starting surges for tools and appliances, while the 3.7-gallon fuel tank delivers 9.3 hours of runtime at half load. Automatic voltage regulation protects sensitive electronics, and a three-year warranty covers ownership support.
The Aceup Energy AI4000s supplies 3,200 running watts for household essentials, campsite equipment, and power tools. Its 4,000 starting watts help cover brief startup surges, while an 8-hour runtime at 50% load gives users a clear refueling interval under moderate demand. Parallel capability allows a compatible second unit to expand available output.
  • Most Powerful
    Generac #7678 GP3600
    3600W running
  • Quietest
    Aceup Energy AI4000s
    55 dB
  • Longest Runtime
    Generac #7678 GP3600
    9.3h at 50% load
Where to buy
Prices can change. We update these automatically.
Generac #7678 GP3600
Store links
No links yet.
Aceup Energy AI4000s
Store links
No links yet.
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