Furnace

A furnace is a heating system that warms a building by generating heat through fuel combustion or electrical resistance. It typically uses a heat exchanger to transfer the generated heat to air, which is then circulated throughout the space via ducts and a blower fan. Furnaces are common in homes and buildings for maintaining comfortable indoor temperatures during cold weather. They are designed for efficiency, safety, and control, allowing users to set and maintain desired temperature levels. Essentially, a furnace is a reliable device that provides consistent, controlled heat to keep indoor environments warm and comfortable.