DuroMax Generators

DuroMax has 6 units on Outage Geek, priced from $649 to $3,199. The least expensive DuroMax model here is the DuroMax XP2300iH at $649, and the lineup below runs cheapest first.

~$649

Inverter Generator · Dual Fuel (Gas/Propane) · 52 dB

DuroMax XP2300iH

The small DuroMax is one of the few 2 kW inverters that runs on propane. It makes 1,800 running watts on gasoline and 1,700 on propane, and the propane runtime is the headline: 38 hours at a quarter load on a 20 lb tank, which is a long stretch for a fridge, router and lights in an outage, and propane does not go stale in storage. Owners also mention the 30A L5-30 outlet, USB-C port and the included parallel cable. The complaints are the 50 lb weight for a 2 kW unit, the plastic 4.5 inch wheels, which are small, and noise: the 52 dB is a light-load figure, and owners find it louder than Honda's under real load. It uses DuroMax's in-house engine, not a Honda or Yamaha, and costs about half as much as either. DuroMax lists it at $799 and charges $649.

1,800 W / 2,300 W surge · up to lights, phones, router, a CPAP

running: 1,800 W

Best for Campers and small-outage households who want a propane-capable 2 kW inverter at half the price of a Honda EU2200i.

Full spec sheet

~$799

Portable Generator · Dual Fuel (Gas/Propane) · 69 dB

DuroMax XP5500HX

A compact open-frame for people who want propane in the garage and an outlet that reaches a transfer switch, at a modest price. It makes 4,500 running watts on gasoline and 4,275 on propane, which runs a furnace, fridge, sump pump and some lights through a 30-amp inlet but not a central air conditioner. The 5-year warranty is longer than the 3 years most portable generators carry, a CO sensor shuts the engine down, and remote start is included. At 69 dB it is quieter than the larger DuroMax open frames, and at 128 lbs one person can lift it into a truck bed with a ramp. The drawbacks are the small 4 gallon tank, a spec sheet that lists it as not CARB or 50-state compliant, and a smaller dealer network than Generac. DuroMax lists it at $799 and sells it for less most weeks.

4,500 W / 5,500 W surge · up to furnace blower, sump pump or a window AC

running: 4,500 W
Transfer switch: transfer-switch ready

Best for Small-home and RV owners who want a light dual-fuel generator with a 30-amp outlet and the longest warranty in the class.

Full spec sheet Check price on Amazon

~$1,299

Portable Generator · Dual Fuel (Gas/Propane) · 74 dB

DuroMax XP13000EH

The 'Beast': 13,000 starting watts, a 500cc V-twin, all-metal construction, and a 50-amp outlet for around $1,300 makes this the biggest-hammer option in portable backup. Owners with well pumps and central AC buy it for those big motor loads, and the MX2 switch lets you dedicate full power to 120V or split 120/240V. DuroMax support actually gets better marks than Westinghouse's in forum comparisons. What the fans concede: it's LOUD (mid-to-high 70s dB real world), 234 lbs of steel, drinks propane fast (about 3 hours on a grill tank), and its non-inverter power has high THD, a concern for sensitive electronics. Mechanical complaints such as a failed starter, carb icing and a governor that hangs on propane appear, and owners usually solve them with basic wrenching or warranty service.

10,500 W / 13,000 W surge · up to well pump or a small central AC

running: 10,500 W
Transfer switch: transfer-switch ready

Best for Rural and well-pump homes that need maximum starting torque per dollar and don't care about noise.

Full spec sheet Check price on Amazon

~$1,299

Portable Generator · Dual Fuel (Gas/Propane) · 74 dB

DuroMax XP11500EH

DuroMax's 9,000-watt open frame sits just under the XP13000EH and follows the same formula: dual fuel, a full panel with a 14-50R, and a price near $1,300. It makes 9,000 running watts on gasoline and 8,550 on propane from a 457cc engine, enough for a furnace, fridge, well pump and an AC through a manual transfer switch or interlock. The 20-hour run at a quarter load and the propane hose and regulator in the box get the most praise. The tradeoffs are the usual DuroMax ones: it is loud at 74 dB, about 224 lbs, and the spec sheet notes it is EPA certified but not 50-state, so it cannot be shipped to California. The dealer and parts network is smaller than Generac's or Honda's. The catch is that DuroMax's own XP13000EH lists at the same $1,299 with 1,500 more running watts, so this one only makes sense when a retailer discounts it below its bigger sibling.

9,000 W / 11,500 W surge · up to well pump or a small central AC

running: 9,000 W
Transfer switch: transfer-switch ready

Best for Budget-minded homeowners who want dual fuel and a 50-amp outlet through a manual transfer switch, and live outside California.

Full spec sheet Check price on Amazon

~$1,999

Inverter Generator · Dual Fuel (Gas/Propane) · 61 dB

DuroMax XP9500iH

DuroMax's near-whole-house inverter gives you 240V and a 50A outlet without paying Honda EU7000iS money. It makes 7,600 running watts on gasoline and 7,200 on propane, enough for a furnace, a well pump, a fridge, a freezer and a window air conditioner at once, with a 50A port that feeds a transfer switch or an RV. The runtime, the 5-year warranty, the electric and remote start, and the way it idles down at light load all draw praise. Weight is the first complaint, since at 216 lbs it needs the wheel kit and a ramp, and noise is the second: the 61 dB figure is taken at 25% load, and owners say it is much louder at full output. It uses the DuroMax in-house engine rather than a Honda or Yamaha, and long-term durability reports are thinner than for the Japanese engines. DuroMax lists it at $2,699 and sells it for $1,999.

7,600 W / 9,500 W surge · up to well pump or a small central AC

running: 7,600 W
Transfer switch: transfer-switch ready

Best for Homeowners who want an inverter that can feed a 50A transfer switch and run a furnace and well pump, for about 60 percent less than the Honda EU7000iS.

Full spec sheet Check price on Amazon

~$3,199

Portable Generator · Dual Fuel (Gas/Propane) · 83 dB

DuroMax XP15000EH

DuroMax's big V-twin, aimed at the owner who wants to run most of a house through a 50-amp transfer switch. It makes 12,500 running watts on gasoline and 11,400 on propane from a 713cc engine, with four 20-amp outlets plus L5-30R, L14-30R and 14-50R on the panel, and it carries CARB and 50-state certification, which most big DuroMax units do not. The cost is size and noise. At 380 lbs and 83 dB it is about 9 dB louder than the 74 dBA Westinghouse WGen14500DFc, which is a large gap, there is no recoil start, and the spec sheet suggests a 60 lb propane tank minimum, so a standard 20 lb cylinder will not run it for long. At $3,199 it lists $300 under the Westinghouse WGen14500DFc, which is rated 2,000 watts higher, so the choice comes down to whether you need DuroMax's 50-state certification or the Westinghouse's extra output.

12,500 W / 15,000 W surge · up to well pump or a small central AC

running: 12,500 W
Transfer switch: transfer-switch ready

Best for Large-home owners in all 50 states who want a 50-amp portable that is certified for California and will pair it with a large propane tank.

Full spec sheet