Have tried everything to figure this out. Have a family member waking up with swollen eyes after using the Pellet stove. Eyes are swollen above and below them. They are itchy. They will stay swollen for 2 + days, even after shutting off the stove and taking allergy meds. We have tried different pellets. We have tried leaving the stove off.... no issues then. Turned it on at 8 PM after a cleaning and next morning one eye was puffy and by the next night both eyes were puffy. Any ideas?