I'm running an Enviro Empress insert, and on setting 4 (medium high), I'm burning 2 bags per day. I put a full bag in around 6:30AM, and another around 7PM. Is that normal? I'm currently burning Barefoot Pellets, as they seem to burn the hottest. If I have it on 3 (medium) I go thought about a bag and 3/4 per 24 hour period.