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

  • Briggs & Stratton 30814 P4500 PowerSmart
  • Cat INV2000
  • Model 30814 P4500 PowerSmart
    Model 30814 P4500 PowerSmart

    Briggs & Stratton 3,700W Gas Generator

    3700W
    Running
    60 dB
    Noise
    View details
  • Model INV2000
    Model INV2000

    Cat 1,800W Gas Generator

    1800W
    Running
    52 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
SpecificationBriggs & Stratton 30814 P4500 PowerSmartCat INV2000
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 3700 W
1800 W
Starting watts
Winner: Winner: 4500 W
2250 W
Noise (lower limit)
60 dB
Winner: Winner: 52 dB
Weight
104 lbs
Winner: Winner: 48.8 lbs
Run time @50% load
Not available
Winner: Winner: 6 h
Run time @25% load
16 h
10 h
Fuel tank
3.5 gal
1 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
24.5 x 17.6 x 20.36
19.6 x 12.5 x 18.1
Electrical
Voltage (AC)
120
120V 60 Hz
Voltage (DC)
5
12
GFCI outletsNoYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
3 %
<3% %
Engine
Engine
Briggs & Stratton OHV 4-stroke 224 cc
OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Recoil
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot availableNot available
Running watts
3700 W
1800 W
Starting watts
4500 W
2250 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
16 h
10 h
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
CARB, EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
true
UPC
11675308148
815683024881
Core / High-priority specs
Running Watts (Gasoline)
3700
1800
Starting Watts (Gasoline)
4500
2250
Runtime @ 50% Load (Gasoline)
Not available
6
Runtime @ 25% Load (Gasoline)
16
10
AC Outlet Types
2x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R) GFCI
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Briggs & Stratton OHV 4-stroke
OHV 4-stroke
Engine Displacement
224
79.7
Engine Oil Type
Not available
SAE 30 or 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
16
10
Runtime @ 50% Load (Gasoline)
Not available
6
Controls & display
Display Type
Digital
Not available
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesNo
Included equipment
Starting Components
Recoil, Electric, Remote
Not available
Included Accessories
Oil, funnel, key fob, and battery
Tool kit
Warranty & identification
Commercial Warranty
3
2
Part Number
30814
Not available
Additional specs
Summary
The Briggs & Stratton 30814 P4500 PowerSmart is a 3700-watt inverter generator built for users who need reliable backup power without the noise of traditional models. At 60 decibels, it runs quiet enough for residential neighborhoods and campgrounds, making it suitable for homeowners managing outages, campers extending trips, and outdoor enthusiasts who cannot tolerate generator noise. The 4500-watt peak output handles startup surges for larger appliances like air conditioning units or power tools, while the 3700-watt running capacity sustains continuous operation. With a 3.5-gallon fuel tank and 16-hour runtime at 25% load, users can power essential devices through a full night or longer without refueling. The inverter technology produces only 3% THD, which means laptops, smartphones, and other sensitive electronics charge safely without risk of voltage spikes or damage.
The Cat INV2000 is an 1800-watt inverter generator built for users who need portable, clean power without the noise. At 48.8 pounds and measuring 19.6 x 12.5 x 18.1 inches, this unit bridges the gap between lightweight portability and genuine load capacity. It runs on standard gasoline and produces less than 3% THD, meaning laptops, phones, and sensitive electronics stay safe from voltage spikes. The recoil start fires up quickly, and the 52 dBA noise level keeps it quiet enough for residential areas and campgrounds. With 10 hours of runtime at 25% load and 6 hours at 50% load, users can power essential devices through a full day or night without refueling. The 1-gallon fuel tank and automatic low-oil shutdown mean less maintenance worry. This is a grab-and-go generator for camping, tailgating, emergency backup, and light outdoor work where portability matters as much as power.
  • Most Powerful
    Briggs & Stratton 30814 P4500 PowerSmart
    3700W running
  • Quietest
    Cat INV2000
    52 dB
  • Longest Runtime
    Cat INV2000
    6h at 50% load
Where to buy
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Briggs & Stratton 30814 P4500 PowerSmart
Store links
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Cat INV2000
Store links
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