All GeneratorsDealsCompareMy PicksGenerator Finder
All GeneratorsDealsCompareMy PicksGenerator Finder
  • Guides
  • Blog
  • FAQ
  • Rankings

Helping you find the right generator for your needs with objective specs and clear comparisons.

Categories

  • Quiet Generators
  • Inverter Generators
  • Dual-Fuel
  • Home Backup
  • Portable
  • All Brands

Resources

  • Rankings
  • Compare Generators
  • Generator Finder
  • Deals
  • Buying Guides
  • Blog
  • FAQ
  • About Us

Legal

  • Terms of Service
  • Privacy Policy
  • DMCA
  • Disclosures

Disclosure

RightGenerator is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no cost to you.

© 2026 RightGenerator. All rights reserved.

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.

  • DuroMax XP2300iH
  • Firman W01785
  • Model XP2300iH
    Model XP2300iH

    DuroMax 1,800W Dual-Fuel Generator

    1800W
    Running
    52 dB
    Noise
    View details
  • Model W01785
    Model W01785

    Firman 1,700W Gas Generator

    1700W
    Running
    54 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
SpecificationDuroMax XP2300iHFirman W01785
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterYesYes
Parallel capableYesYes
RV readyNoNo
Running watts
Winner: Winner: 1800 W
1700 W
Starting watts
Winner: Winner: 2300 W
2100 W
Noise (lower limit)
Winner: Winner: 52 dB
54 dB
Weight
50.6 lbs
Winner: Winner: 45.9 lbs
Run time @50% load
Winner: Winner: 7 h
Not available—
Run time @25% load
13 h
9 h
Fuel tank
1.1 gal
0.9 gal
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
22 x 14 x 20
20 x 12.1 x 16.7
Electrical
Voltage (AC)
120
120
Voltage (DC)
5
5
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Low THD %
<3% %
Engine
Engine
80 cc OHV 4-stroke, cast iron sleeve
80 cc OHV 4-stroke, cast iron sleeve.
Alternator
Not available—
Not available—
Starting system
Recoil
Not available—
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
1800 W
Not available—
Starting watts
2300 W
Not available—
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
7 h
Not available—
Run time @25% load
13 h
Not available—
PropaneNot available—Not available—
Running watts
1700 W
Not available—
Starting watts
2150 W
Not available—
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
18 h
Not available—
Run time @25% load
38 h
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
true
Compliance
CARB, EPA
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Bonded to frame
Floating
UPC
811640016371
840876117859
Core / High-priority specs
Running Watts (Gasoline)
1800
Not available—
Running Watts (Propane)
1700
Not available—
Starting Watts (Gasoline)
2300
Not available—
Starting Watts (Propane)
2150
Not available—
Runtime @ 50% Load (Gasoline)
7
Not available—
Runtime @ 50% Load (Propane)
18
Not available—
Runtime @ 25% Load (Gasoline)
13
Not available—
Runtime @ 25% Load (Propane)
38
Not available—
AC Outlet Types
1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R)
1x 120V 20A (5-20R); 1x 120V 30A (L5-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
80 cc OHV 4-stroke, cast iron sleeve.
Engine Displacement
80
80
Cylinder Sleeve
cast iron sleeve
cast iron sleeve
Engine Oil Type
10W-30
Not available—
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
13
Not available—
Runtime @ 50% Load (Gasoline)
7
Not available—
Runtime @ 50% Load (Propane)
18
Not available—
Safety & compliance
Overload Protection System
Low oil and overload protection
Not available—
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Starting Components
Recoil
Not available—
Included Accessories
Funnel, tool kit, propane hose, and parallel cables
Oil, funnel, tool kit, and RV adapter
Warranty & identification
Residential Warranty
Not available—
3
Commercial Warranty
3
Not available—
Additional specs
Summary
The DuroMax XP2300iH is an 1,800-watt dual-fuel inverter generator built for users who need clean power without sacrificing portability. Its 1.1-gallon tank runs gasoline or propane, meaning you can refuel based on what's available rather than what's required. At 52 decibels, it operates quietly enough for residential neighborhoods and campsites. The low THD output protects laptops, phones, and other sensitive gear from voltage spikes that damage electronics. This unit handles small appliances, power tools, and essential household devices but cannot run a full home or heavy construction equipment. The 2,300-watt peak gives you startup headroom for motors and compressors, while the 1,800-watt running capacity sustains continuous loads. At 50.6 pounds with a wheel kit included, one person can move it. The 3-year warranty backs the entire ownership experience.
The Firman W01785 is a 1,700-watt inverter generator built on an 80 cc OHV 4-stroke engine with a cast iron sleeve. At 45.9 lbs, this unit delivers enough power to run a laptop, phone chargers, small power tools, and basic household appliances simultaneously, but cannot handle heavy loads like air conditioners or large welders. The 2,100-watt peak gives it the starting surge needed for devices with inrush current, such as refrigerators or circular saws. Because the W01785 runs on gasoline and produces less than 3 percent THD, users can safely connect sensitive electronics like laptops and televisions without risk of voltage spikes causing damage. The 54 dB noise level means operation at conversational volume, making this unit suitable for campgrounds, residential neighborhoods, and RV parks where noise restrictions apply.
  • Most Powerful
    DuroMax XP2300iH
    1800W running
  • Quietest
    DuroMax XP2300iH
    52 dB
  • Longest Runtime
    DuroMax XP2300iH
    7h at 50% load
Where to buy
Prices can change. We update these automatically.
DuroMax XP2300iH
Store links
No links yet.
Firman W01785
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.