We don't know the specific cause of the fire. Is it possible? Yes, having a light unit run all day long [could make the unit overheat]. I can't say it could have easily been avoided. Usually the units last pretty well.  -   Jim Carley     Quotes
We don't know the specific cause of the fire. Is it possible? Yes, having a light unit run all day long [could make the unit overheat]. I can't say it could have easily been avoided. Usually the units last pretty well. Jim Carley