Webasco 2000 gasoline under passenger seat on 2018 159. Talk to Scott at Thermo King of Pittsburg (724) 863-1555. Yes, I paid more for gas heater but it works GREAT and as long as I have gas in the tank I have heat, no diesel smell or extra tank to fill, no carrying propane inside of van , no expensive under slung propane tank or crawling under van to service propane. Power usage; about 8 to 10 amp draw for first few seconds then drops down to 1.8 within 2 minutes. Then 1.2 to 1.8 amps, depending on temp setting. Don't waste your money on a digital thermostat, it don't take long to find where to set the rheostat ( 9 to 10 o'clock works good most of the time). Amp draw is reversed on shut down for about 2 min. so I crack my vent just enough to keep it running on low (1.2 amps) and maybe a gallon of gas every 18 to 20 hours. I travel east of Mississippi River mostly. I have not put a muffler on mine, just used one section of exhaust pipe and not too loud. I use the webasco when parking overnight at walmarts, truck stops, service plazas, etc... and a small electric heater when plugged in at camp grounds so noise is not a problem. My opinion,,,, There are many flavors of ice cream !!! Y'all be safe and have fun.