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

  • ECHO EGi-1200
  • Firman H03655
  • Model EGi-1200
    Model EGi-1200

    ECHO 1,000W Gas Generator

    1000W
    Running
    64 dB
    Noise
    View details
  • Model H03655
    Model H03655

    Firman 3,650W Dual-Fuel Generator

    3650W
    Running
    67 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-1200Firman H03655
General
Product type
Generator
Generator
Fuel
Gasoline
Dual-Fuel
InverterYesNo
Parallel capableYesNo
RV readyNoYes
Running watts
1000 W
Winner: Winner: 3650 W
Starting watts
1200 W
Winner: Winner: 4550 W
Noise (lower limit)
Winner: Winner: 64 dB
67 dB
Weight
Winner: Winner: 30 lbs
112 lbs
Run time @50% load
5.2 h
Winner: Winner: 14 h
Run time @25% load
Not available
Not available
Fuel tank
0.69 gal
5 gal
Fuel gaugeNoYes
Approx. dimensions (L × W × H)
16 x 11 x 16
25.7 x 21.8 x 21.6
Electrical
Voltage (AC)
120
120V 60 Hz
Voltage (DC)
12
Not available
GFCI outletsNoNo
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
Not available
25 %
Engine
Engine
60 cc OHV 4-stroke
208 cc OHV 4-stroke, cast iron sleeve
Alternator
Not available
Not available
Starting system
Recoil
Recoil
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
1000 W
3650 W
Starting watts
1200 W
4550 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
14 h
Run time @25% load
Not available
Not available
PropaneNot availableNot available
Running watts
Not available
3300 W
Starting watts
Not available
4100 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
Other
Data center
Not available
Not available
Indicators
true
false
Compliance
CARB, EPA
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
Floating
UPC
743184017555
840876136553
Core / High-priority specs
Running Watts (Gasoline)
1000
3650
Running Watts (Propane)
Not available
3300
Starting Watts (Gasoline)
1200
4550
Starting Watts (Propane)
Not available
4100
Runtime @ 50% Load (Gasoline)
5.2
14
AC Outlet Types
1x Duplex 120V 20A (5-20R)
1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120V 30A (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
208 cc OHV 4-stroke, cast iron sleeve
Engine Displacement
60
208
Cylinder Sleeve
Not available
cast iron sleeve
Engine Oil Type
10W-30
Not available
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
5.2
14
Safety & compliance
Overload Protection System
Not available
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Starting Components
Not available
Oil, funnel, tool kit, propane hose, and wheel kit
Included Accessories
No
Oil, funnel, tool kit, propane hose, and wheel kit
Warranty & identification
Residential Warranty
Not available
3
Commercial Warranty
Not available
3
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 Firman H03655 is a 3,650-watt dual-fuel generator built around a 208 cc OHV 4-stroke engine with a cast iron sleeve. Running on gasoline, it delivers 4,550 starting watts and 3,650 running watts. Switch to propane and output drops to 4,100 starting watts and 3,300 running watts. This power level runs a refrigerator, microwave, window air conditioner, or multiple power tools simultaneously. The dual-fuel flexibility means you can operate on whichever fuel is available, a practical advantage during extended outages or when propane storage is more convenient than gasoline. At 67 dB at quarter load, the H03655 operates quietly enough for residential neighborhoods without disturbing neighbors. The 5-gallon tank delivers 14 hours of runtime at 50 percent load on gasoline, translating to roughly one full day of moderate use before refueling. The RV-ready configuration and included wheel kit position this unit as a go-anywhere power source for camping, job sites, and home backup scenarios.
  • Most Powerful
    Firman H03655
    3650W running
  • Quietest
    ECHO EGi-1200
    64 dB
  • Longest Runtime
    Firman H03655
    14h at 50% load
Where to buy
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ECHO EGi-1200
Store links
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Firman H03655
Store links
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