I run my FEC-100 with the cover on and it has seen torrential rain, 70+ MPH winds, tornado warnings, freezing rain and even snow and it just cooks. I don't know if there is a cove for the 120 that allows you to cook with it on.
Nope. Like I said, I used it at the BBQ Battle in DC where it did rain for a few hours. All I did was put a garbage bag over the hopper/control panel. It has also sat out in my backyard where it is under an awning but did see a ngith where it was out in the open in the rain, no problem.
I run my FEC-100 with the cover on and it has seen torrential rain, 70+ MPH winds, tornado warnings, freezing rain and even snow and it just cooks. I don't know if there is a cove for the 120 that allows you to cook with it on.