Firman 3,650W Dual Fuel Generator


Hybrid Series Generators run on gasoline or propane fuel for flexibility while on the road or during an emergency. Gasoline power 4550 starting Watts and 3650 running watts, LPG 4100/3300 W.

Firman 3,650W Dual Fuel Generator

Model H03651

Runs off of both Propane and Gasoline.

  • 4,550W Start | 3,650W Run on Gasoline
  • 4,100W Start | 3,300W Run on Propane
  • 208cc Firman OHV Engine
  • 5 Gallon Tank
  • 14 Hour Run Time
  • 120V 30A Output
  • Weight - 134.5lbs


Runs on gasoline or propane.

Extended Propane Regulator Hose 5.5ft

The FIRMAN H03651 generator features 4550 starting Watts and 3650 running watts (4100/3300 LPG). Power is supplied by our Max Pro Series 208cc FIRMAN engine which runs cool and efficient thanks to its Phoenix Fat Head Block. Our Whisper Series muffler keeps the H03651 running at a quiet 67 decibels – well below the standards set by the National Parks Service, and our spark arrester has been approved by the USDA Forest Service. The industry - leading 5 gallon fuel capacity provides a whopping 14 hours of run time. Starting is as simple as the push of a button on the H03651. All of our Hybrid Series Generators run on gasoline or propane fuel, giving you flexibility while out on the road or during an emergency. H03651 comes standard with extended propane hose (5ft) for convenience when running off a larger propane tank.

Cast Iron sleeved engine for long durability

Large Tank and quiet muffler

The FIRMAN Volt Lock automatic voltage regulator ensures clean, consistent power output from the FIRMAN Power Stream alternator. For the ultimate in portability the H03651 includes a wheel kit featuring 8” never - flat wheels and a u - shaped padded handle with ergonomic grip. Pertinent information is at your fingertips with our 4 - in - 1 data minder measuring Volts, Hertz, Hours and a low oil indicator. The durable, compact tubular roll cage frame design is built for years of use. Everything you need comes standard in the box including: oil, funnel, owner’s manual, spark plug wrench, and two wrenches to remove protective shipping brackets.

Model/Rev Level: P03651/00

UPC: 840876136515

49 States: Yes

California (CARB): Yes

Canada (CETL): Yes

LPG Running Watts: 3300

LPG Starting Watts: 4100

Gas Running Watts: 3650

Gas Starting Watts: 4550

Frequency (Hz): 60

Engine Displacement (cc): 208

Engine Type: OHV

Starting System: Recoil/Electric

Cylinder: Single

Fuel Type: Gasoline/LPG

Low Oil Shutdown: Yes

Cast Iron Sleeve: Yes

Brushed or Brushless Alternator: Brushed

Automative Voltage Regulator: Yes

Fuel Tank Volume: 5.0

Fuel Gauge: Yes

Runtime @50% load (hours): 14.0

USDA FS Certified Spark Arrester: Yes

Handle: Single Folding

Wheel: 8.0" Flat Free

Accessories: Wheel Kit, Oil Bottle Funnel, Tool Kit

Warranty Residential/Commercial: 3 years/90 days

Carton LxWxH (inch): 27.9 x 18.1 x 20.5

Unit Weight (lbs): 119.5

Shipping Weight (lbs): 135

Ships from: Phoenix, AZ.

Ships with: National Fast Freight.

Ships within: 5 Business Days.

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