Jandy LX 400,000 BTU Propane Electronic Ignition Digital Low NOx Heater Exclusive digital controls provide more precision and less hassle. The LX also communicates directly with Jandy�s AquaLink® RS control system. Provides automatic pool-to-spa switching with the addition of the EZ wireless remote control automation kit. User-friendly Graphical User Interface (GUI) lets you make precise adjustments and perform complete diagnostics with the touch of a button. Corrosion-resistant polymer construction produces greater flow capacity, longer heater life and improved pool circulation. Fan-assisted, controlled combustion provides consistent efficiency in any weather condition. Low-profile design and small footprint make this heater ideal for locations with limited space. Low NOx, meets all clean air standards.