Answer:
If the landlord likes the grill, then the tenant can leave it there, but if the landlord requests that the grill be removed, then the tenant must do it.
Explanation:
Any permanent alteration must be removed and the premises must be returned in the same conditions as before the tenant entered, except for reasonable wear and tear. Anything attached to the premises (in this case the grill) must be removed, or it may stay if the landlord likes it.
