House has an oil-fired boiler with a powervent flue, and someones home-grown attempt at supplying outside air for combustion (4" flex hose that was shoved over the end of the air intake on the burner head).
If it makes sense for this to have an outside air intake for combustion, I'll have it done properly (the hose slipped off this past weekend and revealed itself for the kludge it is), but since it has a power-vented flue and is therefore sucking large amounts of indoor air through the damper and out the flue, what sense does it make to worry about the small amount of air the combustion intake is going to pull out of the house?
Or, is the power-vent flue setup done wrong as well?
Dave