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DuroMax DS10000EH vs FIRMAN H08052

Two of the dual-fuel & open-frame portable generators in our best dual-fuel portable generators: champion, westinghouse, duromax, wen & firman comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.

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#1 of 22 in Dual-Fuel & Open-Frame Portable Generators

DuroMax DS10000EH

7.5/10

Best for: 8,000 W CARB-certified dual fuel

Check price at Amazon
#2 of 22 in Dual-Fuel & Open-Frame Portable Generators

FIRMAN H08052

7.5/10

Best for: 8,000 W dual fuel with 12 h at half load

Check price at Amazon

Spec-by-spec comparison

Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.

SpecDuroMax DS10000EHFIRMAN H08052Weight
Running watts (gasoline)Continuous (rated) output on gasoline as the maker lists it. 8000 W 8000 W 25%
Starting wattsPeak (surge) output on gasoline for starting motors. 10000 W 10000 W 5%
Runtime at 50% loadHours on a full gasoline tank at half load, as the maker states. 10 h 12 h 15%
Runtime at 25% loadHours on a full gasoline tank at quarter load, as the maker states. 22 h Not listed 5%
NoiseThe maker's noise figure in decibels. Load and distance differ by maker; the basis is in each product's notes where stated. 72 dBA 74 dBA 10%
Transfer-switch readyYes when the generator has a 120/240V L14-30R or 14-50R outlet, or the maker calls it transfer-switch ready, so an electrician can connect it to your home through a transfer switch or interlock. Yes Yes 10%
CO shutoffYes when the maker lists automatic carbon monoxide shutoff. Not listed Yes 10%
Runs on propaneYes for dual- or tri-fuel models. Yes Yes 10%
WeightThe maker's listed (dry) weight. 220 lb 212 lb 5%
CARB compliantYes when the maker lists CARB compliance. Not listed counts as no. Yes Not listed 5%
Starting (peak) watts, gasoline10,000 W10,000 Winfo
Running watts on propane7,600 WNot listedinfo
Fuel tank8.3 gal8 galinfo
Outlets(1) L14-30R, (1) 14-50RIncludes 120/240V L14-30Rinfo
CO shutoffNot published by the makerFIRMAN CO Alertinfo
Noise basisNot listed74 dB at quarter loadinfo
CARBNot listedNot published by the makerinfo
GenPick score7.5/107.5/10100%

Where each one comes out ahead

DuroMax DS10000EH

Better published figure on: Noise.

What we like

    Watch out for

      FIRMAN H08052

      Better published figure on: Runtime at 50% load, Weight.

      What we like

        Watch out for

        • Runtime at 25% load not published by Firman

        Verdict

        On published specs these two score the same. Specs don't capture sound character or feel, so weigh the pros and cons above too.

        • Choose the DuroMax DS10000EH if this sounds like you: 8,000 W CARB-certified dual fuel.
        • Choose the FIRMAN H08052 if this sounds like you: 8,000 W dual fuel with 12 h at half load.
        DuroMax DS10000EH on AmazonFIRMAN H08052 on Amazon
        Spec sources

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