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 ...

Added to the Napoleon® line of high-efficiency gas furnaces is the 9200 Series. The forced-air, high-efficiency gas furnace series has models in the range of 30,000-120,000 Btu, all at 92.1 percent ...

LAS VEGAS — With energy prices due to rise, customers are looking for high-efficiency furnaces that will reduce their energy bills while still providing optimal comfort. They also want smart, ...

We had a new high efficiency gas furnace installed in our house about a year ago. The contractor informed us that the new “code” required that the furnace be vented out the side of the house instead ...