Heating apparatus

Claim 1

A SPACE HEATING UNIT APPLICABLE AGAINST A BUILDING WALL, COMPRISING AN ELONGATE HOUSING TO BE MOUNTED SUBSTANTIALLY HORIZONTALLY ALONG THE BUILDING WALL, SAID HOUSING HAVING AN OPEN INTERIOR AND AIR INLET AND OUTLET PORTS PERMITTING CONVECTION CURRENTS TO PASS THERETHROUGH, SAID HOUSING HAVING AN UPRIGHT FRONT WALL TO FACE THE SPACE TO BE HEATED AND TO RADIATE HEAT THEREFROM, A PLURALITY OF UPRIGHT FINS WITHIN THE HOUSING AND LYING TRANSVERSELY OF SAID FRONT WALL AND IN CONFRONTING AND SPACED RELATION WITH EACH OTHER, SAID FINS HAVING UPPER AND LOWER PORTIONS AND ALSO HAVING UPRIGHT FRONT PORTIONS IN HEAT CONDUCTING ENGAGEMENT WITH SAID FRONT WALL, HEATING MEANS APPLYING HEAT TO THE LOWER PORTIONS OF SAID FINS, SAID FINS HAVING ALIGNED APERTURES IN THE UPPER PORTIONS THEREOF, A TEMPERATURE SENSING PROBE EXTENDING THROUGH THE ALIGNED APERTURES IN SAID FINS AND ENGAGING SAID FINS IN HEAT CONDUCTING RELATION, AND SAID PROBE BEING EXPOSED TO THE AIR BETWEEN SAID FINS, AND MEANS CONNECTED WITH SAID HEATING MEANS AND RESPONDING TO A HIGH LIMIT TEMPERATURE SENSED BY THE PROBE TO REDUCE THE HEAT APPLIED BY SAID HEATING MEANS, WHEREBY TO LIMIT THE TEMPERATURE OF SAID FINS AND FRONT WALL OF THE HOUSING.