For most warmers*, 1-2 cubes for small rooms and 2-3 cubes for larger rooms. *Each warmer is different Wax Melt Care Instructions Keep out of reach of children and pets. Do NOT leave warmer unattended while in use. To prevent fire or injury, remove packaging before use. Use only in well ventilated areas away from flammable materials Do NOT add water and do NOT melt on stove top or in non-approved appliances Use only in tea-light warmers or UL listed electric warmers approved for wax melts.