where does the airflow into a convector heater
Convection heater The Model “S”, here as illustrated in 1924, is an example of an early model convection space heater, by the Sala Heater & Mantel Co. in Dallas, Texas. The Model "S" was considered to be highly efficient radiant type of gas heater at the time. The heater utilizes radiant heat, and, by virtue of draft construction, supplements its power by drawing cold air through the facing, heating it and forcing it into the room through the register. This not only forces the circulation that provides an even warmth in every section of the room, but enables the heater to operate at all times with a perfectly cool exterior. Positive circulation provides an even warmth throughout the room, and guarantees a clean, humid, healthful[citation needed] air to occupants.