I had some issues the other day with losing draft and carbon monoxide detector going off. I was not home but wife called about alarm. It went up to about 58 degrees,no call for heat,low fire idle fire condition. I currently have my oil burner tied in with coal stove but definetly going to disconnect and install a power venter on oil burner. I need to get this set up right to avoid further problems. Sounds like I need to establish what kind of draft I have to start with and go from there.I know coal can be tough to burn on warm days but it usually makes it through the day without losing draft.