King stove 5502M- I vacuumed out the burn pot and small chamber area on either side -loaded it up with a bag of hardwood pellets and turned the unit back on. It had run out of fuel prior to me doing all of this. I turned it on, went out to empty the ashes out, came in and smoke was swirling all inside the stove and coming out where the blower is and pouring outside the smoke stack outside...first time user - help pls.