Forced air electric baseboard heater

Claim 1

A FORCED AIR ELECTRIC BASEBOARD HEATER COMPRISING: A HORIZONTALLY ELONGATED HOUSING ADAPTED TO BE POSITIONED AT THE BASE OF A WALL; A CENTRIFUGAL FAN AND ELECTRIC MOTOR THEREFOR MOUNTED IN ONE END OF SAID HOUSING; A FAN SCROLL POSITIONED AROUND SAID FAN HAVING AN AIR INLET AND AN AIR OUTLET; AN AIR INLET FORMED IN SAID HOUSING FOR PERMITTING AIR TO FLOW TO SAID SCROLL AIR INLET; A HORIZONTALLY ELONGATED DUCT POSITIONED IN SAID HOUSING HAVING AN END DISPOSED ADJACENT SAID FAN AND CONNECTED TO SAID SCROLL OUTLET; AN ELONGATED ELECTRIC HEATING MEANS POSITIONED IN SAID DUCT EXTENDING SUBSTANTIALLY THE FULL LENGTH THEREOF; ELONGATED AIR OUTLET MEANS FORMED IN SAID HOUSING POSITIONED ADJACENT TO AND PARALLEL WITH SAID DUCT; AND A PLURALITY OF SPACED OPENINGS FORMED IN SAID DUCT ALONG THE LENGTH THEREOF AND POSITIONED IN DIRECT COMMUNICATION WITH SAID HOUSING AIR OUTLET; SAID OPENINGS HAVING A PREDETERMINED TOTAL AREA RELATIVE TO THE AIR OUTPUT OF SAID FAN TO MAINTAIN A PRESSURE DIFFERENTIAL ABOVE ATMOSPHERIC IN SAID DUCT THROUGHOUT ITS FULL LENGTH, THE AREA OF SAID OPENINGS PER UNIT LENGTH OF SAID DUCT BEING GREATER IN THE PORTION THEREOF DISPOSED ADJACENT THE FAN THAN IN THE PORTION ADJACENT THE OPPOSITE END OF SAID DUCT.