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FIRMAN H07553

Ranked #11 of 22 in Best Dual-Fuel Portable Generators: Champion, Westinghouse, DuroMax, WEN & FIRMAN (2026). Here is every spec we scored, where it came from, and how it compares.

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#11

FIRMAN H07553

Best for: 7,500 W dual fuel with CO alert

6.4/10

What we like

    Watch out for

    • Runtime at 50% load not published by Firman
    • Lowest runtime at 25% load in this comparison (12 h)
    • Highest noise in this comparison (75 dBA)

    Score breakdown

    Running watts (gasoline) 25%
    Starting watts 5%
    Runtime at 50% load * 15%
    Runtime at 25% load 5%
    Noise 10%
    Transfer-switch ready 10%
    CO shutoff 10%
    Runs on propane 10%
    Weight 5%
    CARB compliant * 5%

    * Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

    * Other unpublished figures are scored at the category median so missing data neither helps nor hurts.

    Running watts (gasoline)7500 W
    Starting watts9400 W
    Runtime at 50% loadNot listed
    Runtime at 25% load12 h
    Noise75 dBA
    Transfer-switch readyYes
    CO shutoffYes
    Runs on propaneYes
    Weight212 lb
    CARB compliantNot listed
    Starting (peak) watts, gasoline9,400 W
    Running watts on propane6,750 W
    Fuel tank8 gal
    OutletsIncludes 120/240V L14-30R and 14-50R
    Noise basis75 dB at 3/4 load
    CO shutoffFIRMAN CO Alert
    CARBNot published by the maker
    PriceCheck price
    Check price at Amazon
    Specs source:

    How it compares

    Open the full comparison table

    DuroMax DS10000EH
    7.5/10
    #1 · 8,000 W CARB-certified dual fuel
    FIRMAN H08052
    7.5/10
    #2 · 8,000 W dual fuel with 12 h at half load
    Champion 8500W Electric Start Dual Fuel Generator (201493)
    7.3/10
    #3 · 8,500 W dual fuel with CO Shield
    Champion 9500W Electric Start Dual Fuel Generator (201508)
    7.3/10
    #4 · Most running watts here: 9,500 W with an L14-30R and 14-50R
    Champion 8000W Electric Start Dual Fuel Generator (201568)
    7.1/10
    #5 · 8,000 W dual fuel with a 14-50R
    FIRMAN T08073
    7.1/10
    #6 · Tri-fuel 8,000 W with L14-30R and 14-50R
    Champion 7500W Electric Start Dual Fuel Generator (201281)
    6.9/10
    #7 · 7,500 W dual fuel with electric start
    FIRMAN T04472
    6.8/10
    #8 · Tri-fuel 4,400 W with 13 h at half load
    Champion 6250W Dual Fuel Generator (201463)
    6.7/10
    #9 · 6,250 W dual fuel with CO Shield
    DuroMax XP10000X
    6.6/10
    #10 · 8,500 W gas with 22 h at quarter load
    WEN DF8000X
    6.4/10
    #12 · 6,500 W dual fuel with Watchdog CO shutdown
    Champion 5500W Dual Fuel Generator (201505)
    6.3/10
    #13 · 5,500 W dual fuel, 11 h at half load
    DuroMax XP4850EH
    6.2/10
    #14 · 3,850 W dual fuel with 23 h at quarter load
    DuroMax DS4500DX
    6.1/10
    #15 · CARB-certified dual fuel with 25 h at quarter load
    Westinghouse WGen5300DFv
    5.8/10
    #16 · CARB-compliant dual fuel, transfer-switch ready
    Champion 6500W Dual Fuel Generator (201077)
    5.8/10
    #17 · 6,500 W dual fuel, 11 h at half load
    DuroMax XP5500HX
    5.7/10
    #18 · 4,500 W dual fuel with CO alert and 19 h at quarter load
    Champion 3650W Dual Fuel Generator (201280)
    5.7/10
    #19 · RV-ready 3,650 W dual fuel with 14 h at half load
    WEN GN8000M
    5.4/10
    #20 · 6,500 W gas, transfer-switch ready
    Westinghouse WGen7500s
    4.2/10
    #21 · 7,500 W gas with an L14-30R
    Westinghouse WGen3600DFv
    4.1/10
    #22 · CARB-compliant RV-ready dual fuel