Jandy

JXIQ400NK

JXiQ Pool and Spa Heater with VersaFlo Natural Gas

$3,700.00
Shipping calculated at checkout.

Available In-Store Only

Type of Gas: Natural Gas
BTU Size: 400K BTU
Fast shipping
Ships in 2 to 3 business days

Pickup available at Marathon, FL

Usually ready in 24 hours

View Specifications
Product Description

The Jandy JXiQ™ Gas Pool & Spa Heater is the smartest, most compact heating solution for modern equipment pads. Engineered for maximum efficiency, all models come iAquaLink™ RS Ready for instant smartphone control and feature the integrated VersaFlo™ Bypass. This technology automatically diverts water away from the heat exchanger when not heating, significantly reducing energy costs and extending the heater's lifespan. Available in Natural Gas and Propane, the JXiQ delivers ultra-fast heat-ups and intelligent diagnostics in a space-saving design.

Key Features

  • iAquaLink™ RS Ready: Integrated mobile connectivity for remote temperature adjustment and real-time diagnostics via smartphone.
  • VersaFlo™ Integrated Bypass: Automatically reduces pump energy consumption and protects the heat exchanger when heating is inactive.
  • High-Efficiency Heating: 84% thermal efficiency rating ensures faster heat-up times and lower monthly fuel bills.
  • Ultra-Compact Footprint: One of the smallest designs in its class, perfect for tight spaces and easy retrofits.
  • Smart Sensors: Advanced onboard monitoring of gas pressure and voltage to optimize performance and prevent failures.
  • Flexible Installation: Features a 180-degree rotatable top for easy plumbing and gas connections on either side.

 

Warranty
What installation covers

Gas Heater Installation Option Details: Covers replacement of an existing gas heater only. Includes up to 20 feet of pipe, 8 fittings, one three-way valve, and one check valve for plumbing connections. Includes electrical connection of no more than 5 feet to the unit. The electrical panel used to feed the gas heater must have sufficient capacity for the unit’s amp draw. The gas meter must have sufficient pressure to properly supply the gas heater. Does not include pricing if the unit is installed inside a room that requires ventilation. There must be a clear passway or walkway from the installation site to the driveway where the technician’s vehicle is parked. Price includes removal of the old unit, if needed. Service available in Miami-Dade, Broward, and Monroe counties.

Type of Gas
BTU Size
Specifications

Specifications

Jandy® JXiQ™ High-Performance Heater The smartest pool heater on the market, the JXiQ™ combines an ultra-compact footprint with advanced self-diagnostics. Featuring integrated VersaFlo™ bypass technology and sensors that estimate heat-up time, this 84% efficient heater is engineered for maximum hydraulic efficiency and total automation compatibility.
JXiQ 400 Natural P/N JXIQ400NK
Heating Power399,000 BTU
Thermal Efficiency84%
Flow Rate30 - 120 GPM
Bypass ValveIntegrated VersaFlo™
Cabinet Size22"W x 22"D x 27"H
JXiQ 260 Natural P/N JXIQ260NK
Heating Power260,000 BTU
Thermal Efficiency84%
Flow Rate30 - 120 GPM
ConnectivityiAquaLink™ Ready
Cabinet Size22"W x 22"D x 27"H
JXiQ 400 Propane P/N JXIQ400PK
Heating Power399,000 BTU
Thermal Efficiency84%
Flow Rate30 - 120 GPM
ExchangerCopper with Poly Headers
Power Input120V/240V Auto-Sense
JXiQ 260 Propane P/N JXIQ260PK
Heating Power260,000 BTU
Thermal Efficiency84%
Flow Rate30 - 120 GPM
AutomationAquaLink® RS/PDA
Net Weight126 lbs

Safety Warnings & Operational Hazards

Explosion/Fire Hazard: Propane (LP) is heavier than air and can pool in low areas. If you smell gas, do not attempt to light the heater or any electrical switches. Immediately evacuate the area and call your gas supplier or the fire department.
Carbon Monoxide Danger: This is a gas-burning appliance. Improper venting or restricted air intake can lead to fatal CO buildup. Maintain 18" clearance on service panels and 4' from any window or door opening.
Electrical Safety: The JXiQ features Auto-Sensing Power, but it must be properly grounded and bonded. Failure to bond the heater to the pool grid can lead to rapid heat exchanger corrosion and electrical shock.
Scalding Risk: Pool water temperature should never exceed 104°F (40°C). Prolonged immersion in hot water can cause hyperthermia or heat stroke.
💡 Pro-Tips for Maximum Longevity
  • The VersaFlo Advantage: The integrated bypass valve automatically diverts flow away from the heat exchanger when heating is not required. This saves up to 20% in pump energy costs and extends exchanger life by reducing chemical wear.
  • Water Chemistry: Maintain pH between 7.4–7.6. Low pH is the #1 killer of copper heat exchangers. A damaged exchanger due to poor chemistry is not covered by warranty.
  • Winterization: In freezing climates, you must remove the header drain plugs and blow out the lines. Water freezing inside the copper tubes will cause them to burst.
  • Rodent Protection: The JXiQ is designed with a fully encased shell to prevent rodents from nesting and chewing through the internal wiring harness. Ensure all access panels are tightly secured.
Manufacturer Disclaimer: Information sourced from official Jandy (Zodiac Pool Systems) technical documentation. Specifications, including BTU output and electrical requirements, are subject to change without notice. Professional installation by a licensed gas technician is required for warranty validation.
Consumer Disclaimer: This document is for informational purposes only. Do not attempt to install or service this heater without proper licensing and certification. Improper installation can result in severe property damage, personal injury, or death. Always refer to the [JXiQ Installation and Operation Manual](https://www.jandy.com) for complete safety protocols.