DuroMax XP13750HXT 13,750-Watt Tri Fuel Portable Generator

Three fuel choices make the DuroMax XP13750HXT a practical answer when an outage lasts longer than expected. Run it on gasoline for maximum output, connect propane for easy fuel storage, or use a properly sized natural-gas supply when you want extended home-backup capability without handling cans and cylinders. The XP13750HXT produces up to 13,750 starting watts and 11,000 running watts on gasoline. It is a real 120/240V generator with a 50-amp outlet, remote start, CO Alert shutdown, all-copper windings, and less than 5% total harmonic distortion. It is big enough for serious backup duty but still portable when you need to move it around the property. Why choose the XP13750HXT? Factory Tri Fuel: gasoline, propane, or natural gas Gasoline: 13,750 peak / 11,000 running watts Propane: 13,000 peak / 10,500 running watts Natural gas: 11,250 peak / 9,250 running watts Remote start plus electric and recoil starting Home-backup connections: L14-30R and 14-50R Power quality: less than 5% THD Safety: CO Alert and low-oil shutdown Included hoses: 15-foot natural-gas hose and 4-foot propane hose with regulator 5-year DuroMax warranty Best uses Home backup where natural gas is available during extended outages Hurricane and winter-storm preparation with three fuel options Operating refrigerators, lights, pumps, appliances, and selected HVAC loads Farms, workshops, construction sites, and remote properties Customers who want factory natural-gas capability without an aftermarket conversion Output by fuel Fuel Peak watts Running watts Running amps at 240V Gasoline 13,750W 11,000W 45.83A Propane 13,000W 10,500W 43.75A Natural gas 11,250W 9,250W 38.54A Natural-gas output is lower than gasoline output, so size your loads using the natural-gas rating when that will be your main fuel. Full specifications Model / part number XP13750HXT Fuel types Gasoline, propane, and natural gas Gasoline runtime 15.3 hours at 25% load; 11 hours at 50% load Propane runtime 13.6 hours at 25% load; 7.5 hours at 50% load with a 40 lb tank Natural-gas supply 6–9 inches water column; 209,000 BTU/hr at full load Engine DuroMax 500cc, 4-stroke OHV, forced-air cooled Engine speed 3,600 rpm Starting system Remote start, push-button electric start, and recoil backup Voltage / frequency 120/240V, 60 Hz Total harmonic distortion <5% Windings 100% copper Gasoline tank 9.3 gallons with digital fuel gauge Recommended propane tank 40 lb minimum Outlets 4 × 5-20R GFCI, 1 × L14-30R, 1 × 14-50R Battery 12V AGM; included Oil 10W-30; 40.5 fl oz / 1.2 L capacity Noise at 50% load <74 dB Dimensions 28 in L × 21.75 in W × 23.75 in H Dry weight 238 lb Package dimensions / weight 34.25 in L × 23.25 in W × 24 in H; 270 lb Compliance EPA certified; not for sale in California UPC 811640017446 Warranty 5 years What is included XP13750HXT generator, wheel and handle kit, remote control, battery tender cord, 15-foot × 3/4-inch natural-gas hose, propane regulator and hose, oil funnel, spark plug wrench, tool set, and owner's manual. Is the tri fuel model right for you?Choose the XP13750HXT when natural gas is part of your backup plan. If you only need gasoline and propane, compare the DuroMax XP13750HX dual fuel generator. You can also browse our complete DuroMax and DuroStar generator collection.Frequently asked questions How much power does the XP13750HXT make on natural gas? DuroMax rates it at 11,250 starting watts and 9,250 running watts on natural gas. The supply must meet the specified pressure and 209,000 BTU-per-hour full-load requirement. Can it back up an entire house? It can cover many major household circuits, but the answer depends on which loads run together and the starting demand of air conditioners, pumps, and motors. A licensed electrician should calculate the load and install the transfer equipment. Does the natural-gas hose come with it? Yes. The package includes a 15-foot × 3/4-inch natural-gas hose with quick-connect fittings, along with the propane hose and regulator. Can it start a central air conditioner? Many systems are within its capability, especially with load management or a compatible soft starter. Check the air conditioner's running and locked-rotor amperage before deciding. Is this an inverter generator? No. It is a conventional open-frame portable generator. The official specification lists total harmonic distortion below 5%. Can I operate it in a garage with the door open? No. Fuel-burning generators must be operated outdoors and positioned well away from openings and occupied spaces. Follow the owner's manual, CO-safety guidance, and local requirements.