Chimney and duct advice, written straight

Short, specific answers: what a stage-two creosote glaze actually looks like, how an oil-to-gas conversion can strand a chimney, why a two-family house often has two flues instead of one.

Still have a specific chimney or duct question?

Call and describe exactly what you are seeing. The answer is often different for a factory-built fireplace than for a hundred-year-old masonry stack.