FIRMAN 4550-Watt Hybrid Dual Fuel Portable Generator - Recoil/Electric Start, Gasoline/LPG

  • By Firman Generators
  • Model #H03651


This product is no longer offered.


Ready for any task, the FIRMAN H03651 Hybrid Dual Fuel Portable Generator provides power on demand. It is great for camping, emergency power, or work-site. It can run on gasoline or propane fuel, giving you flexibility while out on the road or during an emergency. The durable compact roll-cage frame design is made with 1” steel tubing. Running at 67 dB, the H03651 has a 5-gallon gasoline tank that will run for 14 hours and is California and Canada emissions certified. It has a FIRMAN Max-Pro Series OHV engine for longer life, higher performance, and lower maintenance. The engine runs cool and efficient thanks to its Phoenix Fat Head Block. The engine features a cast iron sleeve for long durability and automatic low oil shutdown protection. The quiet Whisper Series muffler has a USDA FS certified spark arrestor. This generator also features a Volt-Lock Automatic Voltage Regulator and an integrated gasoline fuel gauge. The conveniently located multi-featured control panel has FIRMAN custom designed outlet covers to protect the outlets from dirt, dust, and debris. The 3-in-1 Data-Minder monitors running hours, voltage, and frequency. Heavy duty oversized flat free wheels and a high leverage single folding handle provide for easy maneuvering. A 5 ft. LPG hose with regulator is provided for convenience when running off of a larger propane tank. Bonus accessories include engine oil, oil funnel, and tool kit. A battery is also included for your convenience.


H03651 - Generator Description.docx


  • FIRMAN Hybrid Dual Fuel Portable Generator
  • Start Type: Recoil / Electric
  • Fuel Type: Gasoline / LPG
  • Gasoline Running (Rated) Watts: 3650
  • Gasoline Starting (Surge) Watts: 4550
  • LPG Running (Rated) Watts: 3300
  • LPG Starting (Surge) Watts: 4100
  • AC Voltage: 120 Volts
  • Frequency: 60 Hz
  • Engine Displacement: 208cc
  • Gasoline Fuel Tank Volume: 5 Gal.
  • Runtime on Gasoline Tank at 50% Load: 14 Hours
  • Runtime on Full 20 lb. Propane Cylinder (Not Included) at 50% Load: 11 hours
  • THD at Full Load: 25
  • Engine Type: FIRMAN Max-Pro Series OHV
  • Cylinder: Single
  • Alternator: Brushed
  • Outlets: (2) 5-20r 20A 120V Duplex, (1) L5-30R 30A 120V Twistlock, (1) TT-30R 30A 120V
  • Dimensions: 25.7”L x 18”W x 18.9”H (Handle Down, Not Including Wheels/Foot Bracket)
  • Dimensions: 37.5”L x 21.8”W x 21.61”H (Handle Extended, Including Wheels/Foot Bracket)
  • Unit Weight: 119.5 lbs.
  • Handle: (1) Folding Padded U-Shape Handle
  • Wheels: (2) 8" Plastic Flat Free
  • Foot Bracket: (2) Hat Shape with Rubber Isolator
  • Certifications: EPA (49 States), CARB (California), cETL (Canada)
  • Cover Sold Separately: FIRMAN # 1002
  • Power Cord Sold Separately: FIRMAN # 1101 / 1105

3 Years

Installation Documents

H03651 Manual.pdf

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