SKU: 62531477481

JXI POOL HEATER 400K BTU NATURAL GAS - JXI400NK

$1655.09 $1838.99
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

JXI POOL HEATER 400K BTU NATURAL GAS - JXI400NKThe Jandy JXI400NK 400,000 BTU Natural Gas Pool Heater with VersaFlo Integrated Bypass delivers the professional grade performance pool contractors need for commercial and residential installations. This high efficiency heater combines advanced combustion technology with reliable operation, making it the preferred choice for pool construction and service companies nationwide. Commercial Installation Benefits Engineered for contractor efficiency, the

The Jandy JXI400NK 400,000 BTU Natural Gas Pool Heater with VersaFlo Integrated Bypass delivers the professional-grade performance pool contractors need for commercial and residential installations. This high-efficiency heater combines advanced combustion technology with reliable operation, making it the preferred choice for pool construction and service companies nationwide.

Commercial Installation Benefits

Engineered for contractor efficiency, the JXI400NK features the VersaFlo Integrated Bypass system that simplifies installation and reduces labor costs. The digital display provides precise temperature control, while the low-NOx technology meets strict environmental regulations for commercial projects. With 84% thermal efficiency and 30-100 GPM flow rate capability, this heater handles demanding applications while minimizing operating costs for your clients.

Why Pool Contractors Choose MT Pools

MT Pools understands the demands of professional pool installation and service. Our superior customer service includes technical support from experienced professionals who know the challenges contractors face. With reliable inventory and wholesale pricing that protects your margins, we're your trusted B2B partner for high-value equipment orders.

Frequently Asked Questions

What's the difference between JXI400NK and the newer JXiQ400NK model?

The JXI400NK has been upgraded to the JXiQ400NK with enhanced features, but both offer the same 400K BTU capacity and VersaFlo bypass system that contractors rely on.

Does this heater meet commercial emission standards?

Yes, the JXI400NK features low-NOx technology that meets strict environmental regulations for commercial pool installations nationwide.

What warranty coverage does MT Pools provide?

The JXI400NK includes 1-year limited factory warranty plus 5-year heat exchanger warranty when equipped with VersaFlo bypass, backed by MT Pools' superior customer service.

Is professional installation required for this heater?

Yes, professional installation by qualified contractors is required following NEC/CEC codes with proper bonding and GFCI protection for warranty coverage.

Order Today

Join thousands of pool contractors who trust MT Pools for their commercial heating equipment needs. Our team provides expert technical guidance and fast shipping to keep your projects on schedule and profitable.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 62531477481

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4.2 ★★★★★
Based on 7 reviews
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Product Reviews
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Verified Purchase
clutz
New York, US
★★★★★ 1
Better than Honda Cabin Filter for Allergies -
Size: 8.3" x 9.3" x 1.3"
Installation took all of 3 minutes. Noticeable improvement in air quality (less allergy response) since installation. Others mentioned a reduction in air flow but have not noticed a change. ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Update (9/2020) Noticeable reduction in air flow. I have needed to increase the fan speed to make the cabin comfortable. I may be switching brands soon. I will pull the filter at 6 weeks and see if it is getting plugged (yikes). //////////// Update (10/2020) I pulled the Bosch filter expecting it to be plugged due to the lack of air flow. I was surprised to see it was clean. There were are few small pieces of stuff in the folds of the filter but only about 10 of them. I held the filter up to the light and then tapped it on white paper to see what would fall out. There was nothing present to explain the extreme loss of air flow. I have used Bosch cabin filters in my other vehicles (not HEPA) with great success. I was hoping to help the allergies of my family but having to run the fan on high to receive any airflow was more annoying than helpful. The noise was irritating and the air flow was still less than the Honda filter I removed. I purchased a new Honda cabin filter and our van is back to normal. I did not realize how much I missed the auto temperature setting. I was setting the temperature about 5 degrees below "normal" to try and keep the temperature consistent, and it was not during the hotter summer months. Unfortunately I am beyond the 30 day Amazon return window so I am not able to return the cabin air filter. :-( This is my first Amazon review that moved from 5 to 1.....
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2020
J
Verified Purchase
Jim Russell
Port Orchard, US
★★★★★ 5
Starter
Why did you pick this product vs others?: Good replacement. 
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 20, 2025
W
Verified Purchase
william
Whiting, US
★★★★★ 5
Starter works great
Fits and works great 2005 Mercury mariner 3.0
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 29, 2025
J
Verified Purchase
J G.
Louisville, US
★★★★★ 5
Reliable part
The price of this item was a bit of a shock. A good one though. I gave it to my mechanic, he installed it with no problems. Runs just fine. Would buy again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
J
Verified Purchase
Joel sulbaran
Birmingham, US
★★★★★ 4
Entrega a tiempo
Exelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 3, 2025

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