Q. I plan to install a gas fireplace myself for additional heat in a large family room. I want an efficient one, but one which also has realistic flames. Is a direct-vent design my best option? A. New ...

There's no problem with a one-pipe system, but the rules for venting are different. I've read dozens, maybe hundreds of high-efficiency furnace installation manuals. Every single one of them had ...

The SmartComfort™ DLX 90 is a low-profile, 92 percent AFUE gas furnace with single-stage heating. It is certified for either one-pipe or two-pipe direct vent installation. Both the primary and ...