These heating systems utilize a fuel-combustion process to generate heat, which is then distributed by a fan or blower to warm a designated area. They are commonly employed in spaces where traditional central heating is impractical or insufficient, such as construction sites, workshops, agricultural buildings, and large event tents. The heat output is directly proportional to the fuel consumption and the airflow rate.
The advantage of this type of heating lies in its high heating capacity and portability. Their ability to quickly raise the ambient temperature makes them essential in cold climates or during periods when temporary heating is required. Historically, these heating units evolved from simpler space heaters, with advancements in combustion technology and airflow design increasing their efficiency and safety. They are now considered a cost-effective solution for heating large, uninsulated areas where maintaining a consistent temperature is paramount.