To be honest, the power is really a bit too much, the best way is to pull 220V AC power directly around the stall. But if you are wandering around, then you can only switch to a gas stove. For electric batteries and the like plus inverter, it can work, but the power is limited, and based on the characteristics of your occupation, I guess the profit is very low, this method is not applicable.

It's still a reliable gas furnace.