A stove includes a base seat, and a top seat disposed on the base seat. The top seat has a surrounding wall extending upwardly, a support member, and a grill grate. The surrounding wall has opposite first and second wall portions. The first wall portion defines a first groove. The second wall portion defines a second groove and a retaining groove below the second groove. The support member is disposed on the first wall portion below the first groove. The grill grate is disposed at one of a first position, where opposite lateral ends of the grill grate are respectively retained in the first and second grooves, and a second position, where one lateral end is placed on the support member while the other lateral end is retained in the retaining groove.