I USE MY SEAT WARMER MOST OF HE TIME HOWEVER WHEN DRIVING ABOUT 6 HOURS I SUFFERED BURNS/BLISTERS TO BOTH SIDES OF MY BUTT. THE SEAT DIDN'T CATCH FIRE OR MELT , NEITHER DID MY SHORTS. I DID NOT SEEK MEDICAL ATTENTION I AM CARING FOR THE BURNS AT HOME I WOULD LIKE THIS INVESTIGATED .... UPDATED 09/30/15*BF UPDATED 12/11/2017*CN