Your furnace's job is keeping you warm. Get to know the parts of a furnace so it will do that job better and last a lot ...

Derived from the Latin word fornax, meaning oven, a furnace is a large heating appliance designed to evenly distribute heat throughout a building. Furnaces accomplish this by burning fuel internally ...

Newly-manufactured indoor residential gas furnaces will have to be at least 95% efficient starting in late 2028 under a new rule issued by the U.S. Department of Energy (DOE). In an effort to save ...

AI-generated summary reviewed by our newsroom. Read our AI Policy. Furnaces typically fail after 15-20 years; schedule replacement before winter peak. Gas units cost $3,000-$8,000 and offer lower ...

Our industry uses ranges like 350 to 400 cfm (cubic feet per minute) per ton to estimate required cooling and heat pump airflow. With a few pieces of information, you can use similar ranges for gas ...