That new high-efficiency furnace you’re installing might come at a high price: a buildup of carbon monoxide around the water heater or condensation in the chimney. The source of the problem is what ...

Q. We had a chimney cleaning service inspect our chimney and they suggested that we install an insulated flexible aluminum flue liner in our chimney connected directly to our gas water heater vent.

Q: 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 factor? – ...

I'm going to guess that you have a newer furnace. If that's true, you're probably getting condensation in the flue. Older furnaces didn't have that issue. The hot flue gas they produced literally shot ...

“That’s too much — no one else even mentioned we’d need an expensive liner — you trying to rip us off here?” Chimneys — you can’t live with them and you can’t live without them — or at least you ...