Cost of propane vs gas generator.

TenOC wrote:
I have read a lot about the pro/con of gas/propane generators. I have an almost new champion 75537i 3100 watt remote start inverter gas generator. I am in the process of purchasing a used FW that comes with a built in Onam Marquis 5500 Propane generator. I am not paying extra for the Onam generator -- it is part of the deal so in effect it is free.

My question: Disregarding all the pro/con of the two generators and assuming I have access to both propane and gas at a reasonable price, which generator will cost less to rum? . . . :h

The biggest downfall for a propane generator is the fuel itself. While the FW might have a 100# tank that's only about 25 gallons so you can be out of fuel after only about 50 hours of run time less what you use to cook and keep the fridge running. Less again if you connect a gas grill or fire pit. Since the tank is attached to the FW, the only way to get more propane is to drive to a propane station.
The smell of propane exhaust is also quite different than gas and some (including my wife) just hate this part of it.