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DuroMax XP15000HX vs Westinghouse WGen14500DFc

Two of the home standby & large portable generators in our best home standby & large portable generators: champion, westinghouse, duromax & 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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#15 of 23 in Home Standby & Large Portable Generators

DuroMax XP15000HX

3.8/10

Best for: 12,000 W dual fuel with CO alert

Check price at Amazon
#16 of 23 in Home Standby & Large Portable Generators

Westinghouse WGen14500DFc

3.8/10

Best for: 14,500 W dual fuel with CO sensor

Check price at Amazon

Spec-by-spec comparison

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

SpecDuroMax XP15000HXWestinghouse WGen14500DFcWeight
Running watts (best listed fuel)The highest continuous (rated) output the maker lists on any fuel: gasoline for most portables, propane for home standby units. Output on other fuels is in each product's notes. 12000 W 14500 W 35%
NoiseThe maker's noise figure in decibels. Champion lists operational volume for its standby units; load and distance otherwise vary by maker. Not listed Not listed 15%
Runs on natural gasYes for home standby and tri-fuel models that can run on piped natural gas, which avoids refueling in a long outage. No No 15%
Runtime at 50% load (gasoline)Hours on a full gasoline tank at half load. Home standby units run on piped gas or a propane tank, so they show Not listed and score the category minimum on this criterion; their strength shows in the other criteria. 12 h Not listed 10%
Transfer switch / transfer-switch readyYes for home standby kits that include an automatic transfer switch, and portables with a 120/240V L14-30R or 14-50R outlet or a maker 'transfer switch ready' listing. Yes Not listed 10%
CO shutoffYes when the maker lists automatic carbon monoxide shutoff. Champion's standby pages don't list one, so it shows as Not listed. Yes Yes 10%
CARB compliantYes when the maker lists CARB compliance. Not listed counts as no. No No 5%
Starting (peak) watts, gasoline15,000 W18,000 Winfo
Running watts on propane11,400 W13,000 Winfo
Fuel tank13.2 gal10.5 galinfo
Outlets(1) L14-30R, (1) 14-50R(2) AC 120V 5-20Rinfo
CO shutoffCO Alert shutdownCO sensor shutdowninfo
GenPick score3.8/103.8/10100%

Where each one comes out ahead

DuroMax XP15000HX

No scored spec where it is strictly ahead; its case rests on the strengths below.

What we like

    Watch out for

    • Noise not published by DuroMax

    Westinghouse WGen14500DFc

    Better published figure on: Running watts (best listed fuel).

    What we like

      Watch out for

      • Noise not published by Westinghouse
      • Runtime at 50% load (gasoline) not published by Westinghouse

      Verdict

      Westinghouse lists 14,500 vs 12,000 W gasoline running. DuroMax lists 12 h at half load and 17.9 h at quarter load. Both are dual fuel with CO shutoff.

      DuroMax XP15000HX on AmazonWestinghouse WGen14500DFc on Amazon
      Spec sources

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