Jandy JXi JXI400P Propane Pool and Spa Heater, 399,000 BTU
$3,896.00
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Jandy JXi JXI400P Propane Pool and Spa Heater, 399,000 BTU
$3,896.00
Currently sold out
Free standard shipping · eligible US orders
Standard shipping: 3–5 business days (estimated).
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Large equipment may ship by freight and require a delivery appointment.
Final shipping options and applicable taxes are confirmed at checkout.
Jandy JXi JXI400P Propane Pool and Spa Heater, 399,000 BTU.
Model details
- Manufacturer part number: JXI400P
- Fuel: propane. Copper heat exchanger. Electrical supply: 120/240V, single phase.
- Heating input: 399,000 BTU/h.
- Low-NOx combustion design.
Fuel and heater sizing
This is the propane configuration. Confirm that your supply matches before ordering. Gas-heater BTU input is the fuel input rating; usable heat output also depends on thermal efficiency. Pool volume, starting water temperature, desired warm-up time and heat loss determine the capacity needed.
Installation requirements
A qualified installer should confirm gas-line capacity and pressure, electrical supply, water flow, equipment clearances and installation altitude. Indoor installations need the correct manufacturer-approved venting arrangement. Check the existing pad and plumbing connection positions when replacing another heater; matching BTU size alone does not guarantee a direct fit.
Complete the installation
Site-specific gas fittings, electrical work, venting accessories and installation labor are separate. Maintain the manufacturer's water-balance targets and keep the circulation system in good condition to protect the heat exchanger.
Compatibility & installation
Check the exact model and the specifications above before ordering. For equipment and replacement parts, confirm the required voltage, connections, dimensions and compatibility with your existing system.
Need help? Contact us with your model number before purchasing. Equipment requiring electrical, gas or plumbing connections should be installed by a qualified professional.
Shipping & Delivery
We ship within the United States. Standard shipping is currently free for eligible destinations at checkout. Faster shipping options are shown when available for your order; the final options and charges appear at checkout.
Dispatch and arrival dates depend on the item, destination and shipping method. Need an estimated arrival date before ordering? Contact us with the product model and delivery ZIP code.
Large equipment may ship by freight and require a delivery appointment. Inspect the shipment on arrival, photograph visible damage and note it on the delivery receipt.
Returns
Eligible products may be returned within 30 days of delivery if new, unused, uninstalled and in their original packaging. A restocking fee of up to 20% may apply; return shipping and other conditions apply.