Funeral Director Heidi Heil cremates a body Friday, Oct. 14, 2016, at Serenity Funeral Chapel in Twin Falls. Heil says it takes about three hours to cremate a body once the cremator has reached its required temperature. Note: This is another single from a larger story. Witnessing a cremation is not something most people get to see. The interest factor of this image definitely elevated it into my top 12 status.