I have 23 years of experience and specialize in the field of fireplace, chimney and venting with specific knowledge in the areas of masonry fireplaces, factory built fireplaces, and wood and gas hearth products. I have published on such topics as fireplace inspection, NFPA-211 levels of inspection, and fireplaces and chimneys. I have testified on factory built fireplaces and chimneys, masonry fireplaces and chimneys, and structure fire origin and cause.