Skip to content

We may earn a commission when you buy through our links. Rankings are formula-based and never paid for. As an Amazon Associate I earn from qualifying purchases. Disclosure

DuroMax XP15000HX

Ranked #15 of 23 in Best Home Standby & Large Portable Generators: Champion, Westinghouse, DuroMax & FIRMAN (2026). Here is every spec we scored, where it came from, and how it compares.

Affiliate disclosure: We earn a commission if you buy through links on this page, at no extra cost to you. It never affects our rankings, which come from the published scoring formula. As an Amazon Associate I earn from qualifying purchases. Learn more.

D

#15

DuroMax XP15000HX

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

3.8/10

What we like

Watch out for

Noise not published by DuroMax

Score breakdown

Running watts (best listed fuel) 35%

Noise * 15%

Runs on natural gas 15%

Runtime at 50% load (gasoline) 10%

Transfer switch / transfer-switch ready 10%

CO shutoff 10%

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* Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

Running watts (best listed fuel)	12000 W
Noise	Not listed
Runs on natural gas	No
Runtime at 50% load (gasoline)	12 h
Transfer switch / transfer-switch ready	Yes
CO shutoff	Yes
CARB compliant	No
Starting (peak) watts, gasoline	15,000 W
Running watts on propane	11,400 W
Fuel tank	13.2 gal
Outlets	(1) L14-30R, (1) 14-50R
CO shutoff	CO Alert shutdown
Price	Check price

Check price at Amazon

Specs source:

DuroMax: XP15000HX

DuroMax XP15000HX head-to-head

Head-to-headDuroMax XP15000HX vs Westinghouse WGen14500DFc

How it compares

Open the full comparison table

Champion 26 kW Whole House Home Standby Generator and 200A Switch with fleX Technology (201614)

#1 · Largest output here: 26 kW on propane

Champion 22 kW Whole House Home Standby Generator and 200A Switch with aXis Technology (201221)

#2 · 22 kW whole-house kit with a 200A switch (aXis)

Champion 22 kW Whole House Home Standby Generator and 200A Switch with fleX Technology (201016)

#3 · 22 kW whole-house kit with a 200A switch (fleX)

Champion 18 kW Whole House Home Standby Generator and 200A Switch with fleX Technology (201566)

#4 · 18 kW whole-house kit at 67 dB(A)

Champion 14 kW Whole House Home Standby Generator and 200A Switch with aXis Technology (100839)

#5 · 14 kW whole-house kit at 62 dB(A)

Champion 12.5 kW Select Circuit Home Standby Generator and 100A Switch 10 Year Warran (100179)

#6 · 12.5 kW select-circuit kit at 63 dB(A)

Champion 10 kW Whole House Home Standby Generator and 200A Switch with fleX Technology (201597)

#7 · 10 kW whole-house kit at 61 dB(A)

Champion 13,500W Electric Start Tri Fuel Generator (201241)

#8 · 13,500 W tri fuel with CO Shield

Champion 8.5 kW Select Circuit Home Standby Generator and 50A Switch (100177)

#9 · Quietest here: 8.5 kW select-circuit kit at 59.5 dB(A)

FIRMAN WT12579

#10 · 10,000 W tri-fuel inverter at 69 dB

DuroMax XP13000HXT

#11 · Tri fuel 10,500 W with CO alert

Westinghouse WGen20000c

#12 · Most portable output here: 20,000 W with CO sensor

Champion 10,000W Electric Start Tri Fuel Generator (201438)

#13 · 10,000 W tri fuel with 14-50R

FIRMAN T09376

#14 · 9,200 W tri fuel with 11 h at half load

Westinghouse WGen14500DFc

#16 · 14,500 W dual fuel with CO sensor

DuroMax DS14000iX

#17 · 11,000 W open-frame inverter with 23.3 h at quarter load

Champion 11,000W Electric Start Dual Fuel Inverter (201417)

#18 · 9,000 W dual-fuel inverter at 64 dB(A)

DuroMax XP13000EH

#19 · 10,500 W dual fuel with CO alert

Champion 11,000W Wireless Start Dual Fuel Generator (201544)

#20 · 11,000 W dual fuel with wireless start

Westinghouse iGen12000DFc

#21 · 9,000 W dual-fuel inverter, 19 h at quarter load

DuroMax XP11000iH

#22 · 9,000 W dual-fuel inverter

Westinghouse ecoGen10000

#23 · 7,600 W inverter with 14-50R and L14-30R