OLYMPIAN WAVE CATALYTIC SAFETY HEATERSThe ideal heaters for either your primary or secondary heating source, Olympian Wave Catalytic Heaters operate on low pressure L/P gas and can be wall mounted or used as portables. The built-in automatic Piezo electric spark starter will last for 20,000 starts and is self-generating. No electrical connections or battery drain. No flame, no flue or chimney, no fan or blower, no noise; just dependable, penetrating soft infrared heat. MFG# 57331 UPC# 014717573313