gas table; tabletop gas cooker
Wasei-eigo from 'gas table'. Refers specifically to a portable or tabletop gas cooking unit with two or more burners, often including a small fish grill/oven underneath. Not a built-in cooktop.
wasei-eigo (Japanese-coined English), from gas table
See also: ガス台
When I started living alone, the first thing I bought was a gas table.
This gas table has a fish grill.