JXi Gas Heater

260K BTU: 260K BTU

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High Efficiency and low NOx, the JXi Heater sets the standard in Pool and Hot Tub heating technology. The JXi is the ultimate in innovation with its ultra compact size and great new features. Pool professionals and owners everywhere consider the JXi the easiest heater to install and use.

Features for the fastest, most customer-friendly installation include:

    • Ultra-Compact - 2' x 2' footprint for small space requirements and maximum installation flexibility.**
    • Lightweight Design - Weighs less than 126 pounds unpackaged for easy maneuverability and transport.
    • Best Retrofit Option - Plumbing flexibility for quick Mastertemp® and Max-E-Therm® replacement that requires no plumbing adjustments.***
    • Easy to Control - RS485 digital interface is Aqualink®/iAqualink™-compatible for pool and spa automation.

      **Refer to JXi manual for proper heater clearances that may apply.

    ***Please see Easy Replacement section on next page.


  • Energy-efficient - 83% thermal efficiency rating and low-NOx design surpasses strict DOE energy efficiency requirements.
  • Ultra-Compact Lightweight Design - Easy to store, transport, and install, the JXi is 38% lighter with a 28% smaller footprint. *Smaller footprint compared to major competitor models
  • Flexible Installation - 180° rotatable top so you never need to rotate headers.
  • Versa Plumb®-Ready - Installation in the Versa Plumb system reduces plumbing costs and increases energy efficiency, all using the smallest footprint available. Sweep elbow included in all JXi models
  • Easy Access - Electrical panel flips up for ease of service.
  • Easy Replacement - 3-port header for easy plumbing and drop-in replacement of MasterTemp, Max-E-Therm, and Jandy Pro Series heaters.
  • Sidewall Ventilation - Provides versatility and ease of installation.
  • High-Efficiency Gas Train and Heat Exchanger Design
    - Copper fin heat exchanger tubes for efficient heat transfer
    - Single stainless steel burner with robust design
    - Blower-driven gas and air mix for reliable performance
    - Hot surface ignitor for consistent start-ups
  • User-Friendly Control - Digital interface for effortless temperature control and diagnostics with run-time and cycle meter.

Technical Details

  • Corrosion-resistant stainless steel header bar for extreme heat exchanger durability.
  • Venturi-driven air and gas mix for enhanced performance.
  • Reliable, balanced flow and temperature control with thermal regulator valve.
  • Differentiated limit switches meet applicable product safety standards.
  • Corrosion-resistant temperature sensors for reliable operation.


  • Firing Rate: 260,000 BTU
  • Vent Diameter: 6"
  • 22.1" D x 26.5" H x 22.9" W
  • Weight: 117 lbs
  • Min. GPM 20, Max GPM 120

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