JXI Pool Heater 400 BTU Natural Gas:

The JXi™ heater sets the standard in pool and spa heating with its ultra-compact size, lightweight design and durable construction that protects against rodents. Boasting an 84% thermal efficiency rating* and a low-NOx design, the JXi is available in both natural and propane gas models.

An ideal heater for any circumstance, new build or as a drop-in replacement, the JXi is easy to install with ample plumbing flexibility to accommodate a quick swap for Mastertemp^® and Max-E Therm® with no unnecessary adjustments.

The JXi also features advanced automation compatibility with AquaLink^® systems and iAquaLink^® control, for anytime, anywhere convenience—making it a top choice for pool professionals and pool owners everywhere.

Energy-Efficient Heating:

84% thermal efficiency rating and low-NOx design suppresses struct DOE Energy Efficiency requirements.

Automation Ready:

Compatible with AquaLink automation system for anytime, anywhere control from your mobile device using the iAquaLink app.

Ultra-Compact Lightweight Desing:

Easy to store, transport, and install, JXi easily fits on a 2'x2' pad and is 38% lighter with a 28% smaller footprint. Compared to major competitor models.

Best Retrofit Option:

Plumbing flexibility for quick Mastertemp and Max-E-Therm replacement that requires no plumbing adjustments.