RV BEGAN SMOKING FROM THE EXTERIOR OF THE HVAC UNIT. PER VIDEO RECORDING FIRE FELL FROM THE CEILING IGNITING THE MATTRESS. THE ENTIRE RV FILLED WITH SMOKE WITHIN MINUTES, AND THE ENTIRE TOP OF RV WAS FULLY ENGULFED IN FLAMES. IT BURNT THE ENTIRE RV, HOME AND CARS BESIDE. IT WAS PURCHASED BRAND NEW JUNE 2018. FIRE OCCURRED JULY 1, 2019. FOREST RIVER WAS NOTIFIED JULY 2019. WE WERE FORTUNATE NOT TO BE IN THE RV WHEN THE FIRE OCCURRED.. HAD WE BEEN WE WOULD HAVE NOT SURVIVED. THE HEAT INDEX WAS 98 DEGREES THAT DAY. THE RV HAD A FRONT AND REAR AC. SMOKE EXITED THE FRONT MASTER BEDROOM AC FIRST, PRIOR TO WINDOWS AND DOORS. PLEASE PREVENT THIS FROM HAPPENING TO OTHERS, AND SAVE THEIR LIVES.*DT*DT*JB*JB