The Champion Power Equipment 9000-Watt Tri-Fuel Open Frame Inverter Generator with CO Shield is one of the most innovative products on the market. A feature-packed addition to your RV and a cost-effective power solution . this inverter is smaller . quieter . and BETTER!First . we cut the noise level in half by integrating Quiet Technology digital components used in more advanced inverters . then we created an efficient mechanical design to decrease the overall footprint and weight by 20 percent.Operate your Tri-Fuel generator on gasoline . propane . or natural gas and safely switch fuels with our patented fuel selector dial.Using natural gas . the generator produces 9000 starting watts and 5875 running watts. To connect this generator to your home’s natural gas source . this generator includes a 25-foot NG hose kit . which includes a female quick connect end . a female flare fitting end and an NPT male adapter.Using gasoline . the generator produces 9000 starting watts and 7250 running watts . and will run for 14 hours at 25% load when the 4.3-gallon fuel tank is full.When using a 20-pound propane tank . it produces 9000 starting watts and 6525 running watts . and will run for 12 hours at 25% load. A 6-foot propane hose with a built-in regulator is included.With a 1.2-quart oil capacity (included 10W-30) and a low oil shut-off sensor . this inverter operates at an ultra-quiet 72 dBA from 23 feet . which is a bit louder than normal speech.All the outlets have covers for protection and include two 120V 20A GFCI protected household duplex outlets (5-20R) . a 120/240V 30A locking outlet (L14-30R) . a 120/240V 30.2A outlet (14-50R) . plus a 12V automotive-style outlet . and a handy dual port USB adapter you can use to power your phone . laptop . or similar device.Buy this EPA certified compliant generator with confidence ?C Champion Support and our nationwide network of service centers will back up your purchase with a 3-year limited warranty and FREE lifetime technical support.CO Shield technology monitors the accumulation of carbon monoxide (CO) . a poisonous gas produced by engine exhaust when the generator is running. If CO Shield detects unsafe elevated levels of CO gas . it automatically shuts off the engine. CO Shield is not a substitute for an indoor carbon monoxide alarm or for safe operation. DO NOT allow engine exhaust fumes to enter a confined area through windows . doors . vents or other openings. Generators must ALWAYS be used outdoors . far away from occupied buildings with engine exhaust pointed away from people and buildings. Meets the requirements of ANSI/PGMA G300-2018.