THE PLATINUM CAT utilizes an electronically controlled fail-safe system which shuts off the heater or will not allow it to start, should a malfunction occur, or should an unsafe operating condition exist. The system is designed to automatically protect the user or occupant of the space being heated. As an example, the gas valve shuts off automatically if the exhaust flue should for some reason become blocked, when the gas flow is interrupted, when electricity is interrupted, or when the heater is used in a hermetically- sealed room preventing proper venting. Few space heaters have as many safety shut-off features as are provided by THE PLATINUM CAT..