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Jandy

Jandy JXi Natural Gas Heater 400,000 BTU with VersaFlo Integrated Bypass JXIQ400NK Newest Model

2 reviews Write a Review
$4,295.00
SKU:
JXIQ400NK
UPC:
052337290845
MPN:
JXIQ400NK
Availability:
Usually Ships in 1 Business Day!
Current Stock:

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$4,295.00
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Frequently Bought Together:

Jandy JXiQ400NK Natural Gas Pool Heater, compact and corrosion-resistant design with advanced SMART Sensors, VersaFlo Integrated Bypass technology, user-friendly large digital interface, and smart connectivity via iAquaLink for efficient and convenient pool heating.
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Description

Upgrade your pool heating experience with the advanced Jandy JXiQ400NK Natural Gas Pool Heater. Designed for optimal performance and effortless control, this 400,000 BTU heater is the perfect addition to your swimming pool or spa, delivering rapid heating with unmatched efficiency and reliability.

Featuring Jandy's cutting-edge VersaFlo Integrated Bypass technology, the JXiQ400NK ensures energy-efficient heating by automatically adjusting the flow for optimal performance, significantly reducing your operating costs. The durable, corrosion-resistant construction ensures longevity even in harsh pool environments, while its compact, lightweight design allows for easy installation and servicing.

With integrated automation compatibility through the iAquaLink system, controlling your pool’s temperature has never been simpler. Access and adjust settings from your smartphone, tablet, or web-enabled device from anywhere, providing unmatched convenience and control at your fingertips.

The innovative Q-model technology includes advanced SMART Sensors that continuously monitor performance, VersaFlo Integrated Bypass to optimize efficiency, auto-sensing dual voltage for hassle-free installation, and a low gas pressure sensor for enhanced safety. It also estimates heat-up time for better convenience, includes a sacrificial anode for enhanced durability, and offers an industry-leading digital interface with a 50% larger display, clearly presenting up to 80 characters of detailed information.

Key Features:

  • 400,000 BTU Natural Gas Heater

  • VersaFlo Integrated Bypass for maximum efficiency

  • Advanced SMART Sensors for optimal operation

  • Auto-sensing dual voltage functionality

  • Low gas pressure sensor for increased safety

  • Estimated heat-up time display

  • Sacrificial anode for enhanced durability

  • Corrosion-resistant, lightweight design

  • Compact footprint for flexible installation

  • Smart connectivity via iAquaLink

  • Environmentally friendly low NOx emissions

  • User-friendly digital interface with large display

Enjoy consistently warm water, reduce energy bills, and simplify your pool heating with the Jandy JXiQ400NK—where innovation meets comfort.

 

Details

Brand:
Jandy
Shipping Dimensions:
39.8 x 23.3 x 28.5 inch
Cabinet Depth:
22.1 inch
Cabinet Width:
23.3 inch
Product Weight:
126 Pounds
Fuel Type:
Natural Gas
Heat Exchanger Material:
Copper
Includes:
JXiQ Heater Connector Flange 2 inch Sleeve 2 inch Gasket Flange Bolt Flange Washer 75 psi Pressure Valve Kit
Voltage:
115V, 230V
Water Connection:
2 inch
BTU Input:
400 British thermal unit
Application:
Pool, Spa
Standards Approvals:
ANSI Certified
UPC Code:
052337290845

Product Reviews

  • 5

    Upgraded to a Jandy Heater

    Posted by Sarah Rodriguez on 1st Jul 2026

    We upgraded our pool heater to a Jandy model through Pool Supply Express and couldn’t be happier. The unit runs efficiently, heats up quickly, and was much easier to install than expected. Their customer service answered all my questions promptly.

  • 5

    Jandy Heater Delivered Fast and Works Perfectly

    Posted by Mike Thompson on 1st Jul 2026

    Just installed the Jandy heater I ordered from Pool Supply Express and it’s working great. Shipped super fast, arrived in perfect condition, and the pool is already staying nice and warm. Excellent product and great communication from the team. Highly recommend!

Modern FAQ Section

Frequently Asked Questions

What is your shipping policy?

Orders are processed and shipped Monday through Friday. Orders placed on weekends or holidays will be processed the following business day. We offer free standard shipping on all our products, shipping nationwide..

Do you offer faster shipment like overnight?

Yes, please contact us at 602-529-1901 or email us at support@poolsupplyexpress.com for a quote on expedited shipping options.

How long does shipping take?

Delivery times vary based on the selected shipping method and your location. Standard shipping typically takes 3-7 business days. Orders are typically shipped the next business day.

How can I track my order?

Once your order is shipped, you will receive a confirmation email with tracking information. You can track your order using the provided tracking number on our website or the respective courier's website.

Can I return an item?

Most items may be returned within 30 days if they are unopened and unused. To initiate a return, please contact our customer service team for instructions and a Return Merchandise Authorization (RMA). For complete details, please refer to our Shipping and Return Policy.

What if I receive a damaged or defective item?

If you receive a damaged or defective item, please contact us immediately. We will work with you to resolve the issue.

What is your warranty policy?

Outside of any manufacturer’s warranty that may apply, Pool Supply Express provides a 1 year warranty for defective parts. If you encounter any issues with your product within 1 year of purchase, please contact us and we will assist you with a replacement or solution.

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