Skip to content

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.

  • ECHO EGi-1200
  • Genmax GM3500iAED
  • Model EGi-1200
    Model EGi-1200

    ECHO 1,000W Gas Generator

    1000W
    Running
    64 dB
    Noise
    View details
  • Model GM3500iAED
    Model GM3500iAED

    Genmax 3,200W Dual-Fuel Generator

    3200W
    Running
    62 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
SpecificationECHO EGi-1200Genmax GM3500iAED
General
Product type
Generator
Generator
Fuel
Gasoline
Dual-Fuel
InverterYesYes
Parallel capableYesYes
RV readyNoNo
Running watts
1000 W
Winner: Winner: 3200 W
Starting watts
1200 W
Winner: Winner: 3500 W
Noise (lower limit)
64 dB
Winner: Winner: 62 dB
Weight
Winner: Winner: 30 lbs
56.2 lbs
Run time @50% load
Winner: Winner: 5.2 h
Not available
Run time @25% load
Not available
9 h
Fuel tank
0.69 gal
1.7 gal
Fuel gaugeNoYes
Approx. dimensions (L × W × H)
16 x 11 x 16
20.9 x 12.2 x 19.7
Electrical
Voltage (AC)
120
120
Voltage (DC)
12
5
GFCI outletsNoNo
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
Not available
≤3% %
Engine
Engine
60 cc OHV 4-stroke
145 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil
Recoil, Electric, Remote
Warranty
Warranty
3 years
1 years
Power by fuel
GasolineNot availableNot available
Running watts
1000 W
3200 W
Starting watts
1200 W
3500 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
5.2 h
Not available
Run time @25% load
Not available
8 h
PropaneNot availableNot available
Running watts
Not available
2800 W
Starting watts
Not available
3100 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
16 h
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
true
UPC
743184017555
713424639021
Core / High-priority specs
Running Watts (Gasoline)
1000
3200
Running Watts (Propane)
Not available
2800
Starting Watts (Gasoline)
1200
3500
Starting Watts (Propane)
Not available
3100
Runtime @ 50% Load (Gasoline)
5.2
Not available
Runtime @ 25% Load (Gasoline)
Not available
8
Runtime @ 25% Load (Propane)
Not available
16
AC Outlet Types
1x Duplex 120V 20A (5-20R)
1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke
Engine Displacement
60
145
Engine Oil Type
10W-30
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available
8
Runtime @ 50% Load (Gasoline)
5.2
Not available
Safety & compliance
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Included Accessories
No
Funnel, tool kit, key fob, propane hose, RV adapter, and battery
Additional specs
Summary
The ECHO EGi-1200 is a 1000-watt inverter generator built around a 60cc OHV 4-stroke engine that runs on gasoline. This wattage class powers small appliances, laptops, power tools, and camping equipment without the noise footprint of conventional generators. The inverter technology means the power output stays clean and stable, which protects sensitive electronics like phones and laptops from voltage spikes that can cause permanent damage. At 30 pounds, this unit sits at the lightweight end of the portable generator spectrum, making it genuinely grab-and-go for one person. The 0.69-gallon fuel tank and 5.2-hour runtime at 50% load define a refueling cycle measured in hours, not days, so users planning extended trips need to account for fuel stops or carry extra cans.
The Genmax GM3500iAED is a 3,200-watt dual-fuel inverter generator that runs on gasoline or propane. At 56.2 lbs, it handles essential household loads like refrigerators and small power tools while remaining portable enough for camping or job sites. The 62 dB noise level keeps it residential-friendly.
  • Most Powerful
    Genmax GM3500iAED
    3200W running
  • Quietest
    Genmax GM3500iAED
    62 dB
  • Longest Runtime
    ECHO EGi-1200
    5.2h at 50% load
Where to buy
Prices can change. We update these automatically.
ECHO EGi-1200
Store links
No links yet.
Genmax GM3500iAED
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.