Poking around on the Leviton site I see a EVB22-3PM that is 3.8 KW and uses a 6-20P. (16a) so there are different models.
I think I would look for one that was 30a and I would put a "dryer" plug on it. The garage is usually where the dryer is around here. I put a dryer plug on my welder 40 years ago and that has saved me a lot of times because most people have a receptacle. I have a 25' extension cord with #10 and a 50' with #6 SO cord (yanked out of a computer room)
