Product Overview

The Jandy JXiQ JXIQ400PK Propane Gas Heater is a high-performance pool and spa heater designed to deliver fast, reliable heating for residential pool systems. With a powerful 400,000 BTU output, this heater is ideal for larger pools, attached spas, and applications where quick heat-up times are important.

This model features a copper heat exchanger and includes VersaFlo, which helps improve hydraulic efficiency by allowing water to bypass the heat exchanger when heating is not required. The JXiQ platform is designed for modern pool equipment pads, combining strong heating performance, service-friendly design, and advanced Jandy heater technology.

⚠️ Important Purchase Notice

This product is intended to be purchased and installed by pool professionals. Product support is not provided to homeowners.

Returns are not accepted on this or any electronic equipment.

Damages to product from shipping will be covered and must be reported promptly.

To prevent possible damage during transit, we strongly recommend selecting Freight.

By purchasing this item, you agree to the terms above.

Ideal For

• Residential pools and attached spas
• Larger pools requiring fast heating performance
• Propane gas pool equipment systems
• Replacing compatible Jandy propane heaters
• Pool owners looking for a 400K BTU heater
• Systems where VersaFlo hydraulic efficiency is preferred
• Professional pool equipment installations

Key Features

• 400,000 BTU Heating Power — Delivers fast heat-up performance for pools and spas
• Propane Gas Operation — Designed for liquid propane fuel systems
• Copper Heat Exchanger — Reliable heat exchanger material for standard pool heating applications
• VersaFlo Technology — Helps improve system efficiency by reducing unnecessary water flow through the heat exchanger when heat is not needed
• JXiQ Heater Platform — Modern Jandy heater design for dependable pool and spa heating
• Pool and Spa Compatible — Suitable for compatible residential pool and spa systems
• Compact Equipment Pad Design — Built for efficient use of space on modern equipment pads
• Automation Friendly — Designed for use with compatible Jandy pool control systems
• Professional Installation Required — Gas, electrical, plumbing, and setup should be handled by qualified professionals

Benefits

The Jandy JXiQ400PK is built for pool owners who need dependable propane heating with strong output and modern system efficiency. Its 400K BTU rating helps heat pool and spa water quickly, making it a practical choice for larger bodies of water or customers who want heat available on demand.

The included VersaFlo system helps reduce hydraulic resistance when the heater is not actively heating, which can support better overall circulation efficiency. The copper heat exchanger provides dependable heat transfer for properly maintained pool water, while the JXiQ design offers a modern heater platform for professional installations.

Important Compatibility Notes

This heater is designed for propane gas applications. It is not the natural gas version.

Before purchasing, confirm gas type, BTU size, plumbing layout, electrical requirements, automation compatibility, venting and clearance requirements, water chemistry, and local code compliance. Installation should be completed by a qualified pool heater technician, licensed gas professional, or licensed contractor.

Specifications

Customer-Facing Q&A

Q: What is the SKU for this heater?
A: The SKU / part number is JXIQ400PK.

Q: What is the UPC / barcode?
A: The UPC / barcode is not provided.

Q: Is this heater propane or natural gas?
A: This model is a propane gas heater.

Q: What is the BTU rating?
A: This heater is rated at 400,000 BTU.

Q: What type of heat exchanger does it have?
A: This model includes a copper heat exchanger.

Q: Does this model include VersaFlo?
A: Yes. This model includes VersaFlo.

Q: What does VersaFlo do?
A: VersaFlo helps improve hydraulic efficiency by allowing water to bypass the heat exchanger when heating is not needed.

Q: Can this replace my existing Jandy heater?
A: It may replace a compatible Jandy propane heater, but gas type, BTU size, plumbing, electrical, venting clearance, and automation compatibility must be confirmed before purchase.

Q: Can homeowners receive product support for this item?
A: No. This product is intended to be purchased and installed by pool professionals. Product support is not provided to homeowners.

Q: Can this item be returned?
A: No. Returns are not accepted on this or any electronic equipment.

Q: What shipping method is recommended?
A: To help prevent possible damage during transit, Freight shipping is strongly recommended.

Q: Should this be professionally installed?
A: Yes. Gas pool heaters require proper gas sizing, electrical wiring, plumbing, clearances, and startup verification by a qualified professional.