This week, Lou explains the difference between granite and quartz countertops, if high-efficiency furnaces are worth the cost, and AC repair.

The concept of the "high-efficiency furnace" in popular consciousness dates back to the 1980s. That's when the National Appliance Energy Conservation Act of 1987 required all new furnaces be 78 ...

Keep in mind, though, that in high-efficiency furnaces ... Blockages in specific pipes, such as the vent pipe, can be problematic. A vent pipe blockage can disrupt the furnace's operation, akin to a ...