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.

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 ...

Q We bought a house last year that had a beautiful vented gas fireplace. However, we were told it was in need of a new chimney flue. Because replacing the flue was so expensive, we were told by ...

“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 ...

Many newer furnaces and boilers are significantly smaller in size and heat production than their predecessors, and require much smaller chimney flue sizes. The smaller flue or chimney liner size helps ...

Q. We have had a persistent leak in the ceiling by our fireplace. I read in your column that a saddle or a cricket behind the chimney would help this. We had a new saddle installed but have found that ...