Raypak P-R156A-EN-C Digital Natural Gas Heater, 150K BTU, 120V, Polymer Headers, Electronic Ignition, Copper Exchanger, 100 lbs | 014784 Features and Benefits: Natural Gas Automatic Water bypass, Digital Thermostat AFT Digital Control Stainless steel burners with powder coating for durability Features polymer headers and a copper fin-tube heat exchanger Temperature and flow control of the exchanger reduce condensation Product Description: Raypak's Digital Electronic Ignition Heater is the perfect choice for pool and spa owners who are looking for a durable, user-friendly heating experience. This unit will stand the test of time thanks to its polyester-coated, non-corrosive cabinet and wind resistant, low-profile design. Header Material Polymer BTUs 156,000 Exchanger Material Copper Gas Type Natural Pool Type Above Ground Commercial or Residential Residential BTU 100 < 199 UPC 840891035794 Product Documentation: Product Warranty Product Installation & Manual Guide Product Brochure