Jandy LJ 400,000 BTU Lite2 Digital Propane Electronic Ignition Heater Introducing the New Lite2 LJ Heater with Jandy Technology Inside! Jandy's expertise in electronics has been added to the design of the new, technologically advanced Lite2 heater. Its easy, programmable features make life around the pool more enjoyable. Built for dependability and efficiency, the Lite2 is one of the most reliable heaters on the market. High-performance insulation and efficient operation make this heater an excellent value. The new LJ model features a liquid crystal digital display with programmable pump control, dual temperature controls, built-in freeze protection and heater diagnostics. LJ model has self-cleaning, hot surface ignition, which provides quick start-up every time and prevents sooting. No burner tray removal required (LJ) and igniter easily replaced with one screw.