The Mr. Heater RV Catalytic Heater is designed for efficient radiant heat on the move. Utilizing the catalytic reaction between propane and oxygen to keep the heat coming even with minimal use of fuel. Mr. Heater has kept the pilot on and added a tip-over switch to maximize safety when operating inside the RV. Keep the whole family warm with the new Cat Heaters from Mr. Heater! This product ships in approximately 1 days