This portable propane cabinet heater delivers 6000–18000 BTU infrared radiant heat, warming spaces up to 450 sq.ft for indoor and covered patio use. It features battery-free piezo push-button ignition with no external power needed. 3 adjustable heat levels meet different heating needs. With high-efficiency ceramic plates, it provides fast warmth and saves propane. Built-in ODS, flame failure and tip-over auto shut-off systems cut gas supply automatically in risky conditions for reliable safe operation.