Q–A new energy-efficient gas furnace is causing my chimney to self-destruct. The heat that used to fly up the chimney now goes back into the house, but the chimney has developed a moisture problem.

Skipping the manufacturer's instructions during installation may result in a furnace that fails within six months or less. For example, heat exchangers can crack from improper venting, and gas valves ...

Question: The repairman says I need a new gas furnace. He recommends a super-efficient one because my chimney also needs repairs. What are my options for the best comfort and why is the chimney a ...

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. Mark Hadlari's ...

Improper installation of stoves, flues or chimneys not only carries an increased risk of fire, DiMarco worries it might play a role in home insurance coverage. Independent insurance agent Donna M.