Originally Posted by
Dale W. Feb
If this intake is connected directly to the basement, it will more than likely vent to the basement area and not up as intended. The basement is known to have the greatest negative pressures in the dwelling. Sometimes it is all about sales.
So, then the exterior hearth has been compromised, correct? Air gets drawn down to the basement, stray ember along with it, and sets the pile of newspapers stored on the floor below.