I have the drolet eco65 and an issue many have with this unit is smoke coming from the hopper. The fix for this serious problem is as follows. Open the fire door and in the center of the door frame is a nut and small bracket. Get a 7/16 socket and remove the nut take the bracket off and a door will swing open, this is the baffle vacuum out all the ash and reassemble, problem fixed no more smoke coming from the hopper.