Thanks, Paul. It turns out that apparently the cement dust was only part of the problem. BTW, you were correct about the time required.
The service man also said that there is not enough air in the small cellar for the burner to work efficiently and suggested a fan-fed intake from the exterior...
Hello,
My girlfriend has a two year old gas fired forced hot water system vented to the outside. We recently completed masonry repairs and generated a great deal of dust in the basement.
The heating system does not work properly, now. Her plumber came this AM and said the whole boiler needs to...