Jandy JXi™ Pool and Spa Heater | 400,000 BTU
Available in Store | Contact K&J Leisure
Call or Text: (519) 930-2432
Toll-Free: (866)-509-8728
Email: info@kjleisure.com
Jandy JXi™ Pool and Spa Heater | 400,000 BTU - NATURAL GAS (JXI400N) / NONE is backordered and will ship as soon as it is back in stock.
Jandy JXi™ Pool and Spa Heater | 400,000 BTU
The Jandy JXi™ pool heater is an ultra‑compact, lightweight 400 000 BTU natural‑gas spa heater that delivers outstanding energy efficiency. With an 84 % thermal efficiency rating and a low‑NOx design, this energy‑efficient pool heater converts more of the fuel’s energy into heat for your pool or spa. An optional VersaFlo integrated bypass automatically diverts water flow away from the heater when there’s no call for heat, reducing your pump’s electricity usage. Designed for quick retrofits on Mastertemp® or Max‑E Therm® plumbing, the JXi takes up just a 2 × 2 ft pad, is 38 % lighter and 28 % smaller than comparable units, and is compatible with AquaLink® automation for remote control.
Features
- Energy‑efficient heating with 84 % thermal efficiency and low‑NOx emissions
- VersaFlo integrated bypass technology saves energy by diverting water flow when not heating
- Ultra‑compact design (fits on a 2 × 2 ft pad; 38 % lighter and 28 % smaller than typical heaters)
- Retrofit‑friendly: works with Mastertemp® and Max‑E Therm® plumbing with no adjustments
- Flexible installation with removable top, 180‑degree rotatable header and flip‑up electrical panel
- Versa Plumb®‑ready design reduces plumbing costs and improves hydraulic efficiency
- Compatible with AquaLink® automation for remote monitoring and control
Specifications
| Specification | Value |
|---|---|
| BTU output | 400 000 BTU |
| Fuel type | Natural gas (propane option available) |
| Thermal efficiency | 84 % |
| Emissions | Low‑NOx design |
| Footprint | Fits on a 2 × 2 ft pad |
| Weight | Ultra‑lightweight |
| Optional feature | VersaFlo integrated bypass |
We understand that occasionally, you may need to return a product. To ensure a hassle-free return process, we have implemented the following 30-day return policy.
Eligibility:
All products purchased directly from K&J Leisure are eligible for return, provided they meet the specified conditions outlined in this policy.
Timeframe:
You have 30 calendar days from the date of purchase to initiate a return request. Returns requested beyond the 30-day period will not be accepted.
Return Conditions:
The product must be in its original condition, unused, undamaged, and in its original packaging with all tags, accessories, and documentation included. Products that are damaged, altered, or missing parts due to customer negligence or improper use will not be eligible for return or may be subject to significant re-stocking fees.
Return Process:
To initiate a return, please contact our customer support team via info@kjleisure.com within the 30-day period.
Provide your order details, including the order number, product name, and reason for the return.
Our customer support team will guide you through the return process, provide you with a return authorization (RA) number, and assist you with the necessary instructions.
Return Shipping:
Customers are responsible for the cost of return shipping unless the return is due to an error on our part or a defective product. We recommend using a traceable shipping method and ensuring appropriate packaging to prevent any damage during transit. It is advisable to retain the shipping receipt and tracking information until the return is processed successfully.
Refunds:
Once the returned product is received, inspected, and deemed eligible for return, we will initiate the refund process. Refunds will be issued using the original payment method used for the purchase.
Please allow 2-5 business days for the refund to reflect in your account, as this may vary depending on your financial institution.
Exchanges and Store Credit:
We do not offer direct exchanges. If you wish to exchange a product, please return the original item and place a new order. Alternatively, we may offer store credit in certain cases. Please contact our customer support team for more information.
Non-Compliance:
Products that do not meet the aforementioned return conditions may not be accepted or may be subject to a restocking fee at our discretion. In cases where we suspect abuse of our return policy, we reserve the right to deny future returns from the respective customer.
Policy Changes:
We reserve the right to modify or update this return policy at any time. Any changes will be effective immediately upon posting the revised policy on our website.



