OEM Jandy JXi 400N Natural Gas Pool & Spa Heater | 399,000 BTUs. Heat your pool and spa faster with the Jandy JXi 400N, delivering a commanding 399,000 BTUs of natural gas heating power built for both residential backyards and professional aquatic facilities. The unit's remarkably compact chassis weighs just 126 lbs, simplifying new installations and making it a popular direct-replacement choice when upgrading from older heaters like the MasterTemp¨ or Max-E-Therm¨ — frequently requiring no plumbing changes at all.

With 84% thermal efficiency and full compliance with demanding DOE energy regulations, the JXi 400N delivers high output while keeping fuel consumption in check. Pair it with a Jandy AquaLink¨ system to unlock remote operation through the iAquaLinkª app, giving you temperature control from your phone wherever you are. Pool owners looking to push efficiency even further can add optional VersaFlo Integrated Bypass technology for optimized water flow and reduced energy use.

Exceeds strict DOE Energy Efficiency standards through an 84% thermal efficiency rating and low-NOx combustion design.

Specifications

• Brand: Jandy
• Part Number: JXI400N

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