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JANDY JXIQ400NS ASME LOW NOX NATURAL GAS POOL & SPA HEATER – 400K BTU, CUPRO-NICKEL HEAT EXCHANGER
Heating Capacity: 399,000 BTU
Thermal Efficiency: 84%
Fuel Type: Natural Gas
Heat Exchanger: Cupro-Nickel
Certification: ASME
Maximum Water Flow: 100 GPM
Power: 115V / 230V Auto-Sensing
Emissions: Low NOx
The Jandy JXIQ400NS ASME Natural Gas Pool & Spa Heater delivers 399,000 BTU at 84% thermal efficiency in the most heavily specified configuration Jandy offers in this line.
Two heavy-duty specifications stack here. ASME certification covers the pressure vessel for commercial-code installations, and the cupro-nickel heat exchanger is the right call for salt-chlorinated pools and the aggressive water chemistry that comes with high bather loads, where a standard copper exchanger corrodes and fails early.
A weld-free combustion chamber and venturi-driven air and gas mixing system improve corrosion resistance and combustion stability, and a thermal regulator valve balances flow and temperature automatically. SMART sensor monitoring and a digital interface handle diagnostics, and the heater is automation-ready with Jandy AquaLink and iAquaLink control.
Key Features
- 399,000 BTU heating capacity
- 84% thermal efficiency
- Natural Gas
- ASME certified
- Cupro-nickel heat exchanger for salt water and aggressive chemistry
- Highest output ASME configuration in the JXiQ range
- Weld-free combustion chamber for corrosion resistance
- Venturi-driven air and gas mixing system
- Thermal regulator valve for balanced flow and temperature control
- Corrosion-resistant temperature sensors
- SMART sensor performance monitoring
- Digital control interface
- Automation-ready with Jandy AquaLink and iAquaLink
- Low NOx design
- Maximum water flow 100 GPM
Specifications
| Specification | Details |
| Brand | Jandy |
| Part Number | JXIQ400NS |
| Series | JXiQ |
| Fuel Type | Natural Gas |
| BTU Input | 399,000 BTU |
| Thermal Efficiency | 84% |
| Heat Exchanger | Cupro-Nickel |
| Certification | ASME |
| Maximum Water Flow | 100 GPM |
| Water Connections | 2" |
| Power | 115V / 230V Auto-Sensing |
| Emissions | Low NOx |
| Automation | AquaLink / iAquaLink Compatible |
What's Included
- Jandy JXIQ400NS ASME Natural Gas Pool & Spa Heater
- Cupro-nickel heat exchanger assembly
- Digital control interface
- Installation and operation documentation
The Jandy JXIQ400NS is the fully specified commercial JXiQ - 399,000 BTU, ASME certified, cupro-nickel exchanger - for high-bather-load salt pools.
Learn more at Jandy:
https://www.jandy.com/en/products/pool-heating/heaters/jxiq
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