A:AnswerOther than the GRLP3 kit, you should not need anything additional to convert your range.
Please remember that installation and service must be performed by a qualified installer.
A:AnswerIt has two heating wands. The convection fan is located in the middle of the back of the oven. The controls have the choice of regular baking(no convection fan) and quick bake(with the convection fan). Both regular baking and quick bake(convection) use the bottom heating wand. The convection fan circulates for the quicker baking, that also can serve as a crisper bake.
A:Answerthe griddle comes with the oven and does not need to be purchased seperately. some model ovens do require you to purchase the griddle seperately, read the fine print.