Sterno 50108 Portable Butane Stove with Piezo Electronic Ignition and Wind-Block Attachment, 15,000 BTU, Black Ideal for off-premises catering, cooking demonstrations or anywhere electricity is not readily available 15,000-BTU heat output Piezo electric ignition with an adjustable flame Wind-Block attachment for outdoor cooking keep flame lit in windy conditions Safety lock and automatic safety shut off sensor to prevent fires from occurring