---
product_id: 18654324
title: "JandyJXI400N Compact Swimming Pool Spa Hot Tub Natural Gas Heater 400K BTU"
brand: "jandy"
price: "R142174"
currency: ZAR
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.za/products/18654324-jandyjxi400n-compact-swimming-pool-spa-hot-tub-natural-gas-heater
store_origin: ZA
region: South Africa
---

# JandyJXI400N Compact Swimming Pool Spa Hot Tub Natural Gas Heater 400K BTU

**Brand:** jandy
**Price:** R142174
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** JandyJXI400N Compact Swimming Pool Spa Hot Tub Natural Gas Heater 400K BTU by jandy
- **How much does it cost?** R142174 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/18654324-jandyjxi400n-compact-swimming-pool-spa-hot-tub-natural-gas-heater)

## Best For

- jandy enthusiasts

## Why This Product

- Trusted jandy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description



## Images

![JandyJXI400N Compact Swimming Pool Spa Hot Tub Natural Gas Heater 400K BTU - Image 1](https://m.media-amazon.com/images/W/WEBP_402378-T2/images/I/51LjXCoWsKL.jpg)
![JandyJXI400N Compact Swimming Pool Spa Hot Tub Natural Gas Heater 400K BTU - Image 2](https://m.media-amazon.com/images/W/WEBP_402378-T2/images/I/410ToT3zZ4L.jpg)
![JandyJXI400N Compact Swimming Pool Spa Hot Tub Natural Gas Heater 400K BTU - Image 3](https://m.media-amazon.com/images/W/WEBP_402378-T2/images/I/414tqfNTmSL.jpg)
![JandyJXI400N Compact Swimming Pool Spa Hot Tub Natural Gas Heater 400K BTU - Image 4](https://m.media-amazon.com/images/W/WEBP_402378-T2/images/I/51HQpEC4ISL.jpg)
![JandyJXI400N Compact Swimming Pool Spa Hot Tub Natural Gas Heater 400K BTU - Image 5](https://m.media-amazon.com/images/W/WEBP_402378-T2/images/I/515IoIVL9qL.jpg)

## Customer Reviews

### ⭐ 







  
  
    FAULTY  MANUFACTURING
  

*by A***R on Reviewed in the United States 🇺🇸 on December 12, 2018*

I bought this unit to replace a spa heater that was 20+ years old. I expected that I would enjoy a similar experience with Jandy that I'd already had. Well, sadly, that was not the case. Once the new unit was delivered and installed by our pool company, we enjoyed a number of evenings in our spa. The weather got cold and we waited for spring to use the spa again. Spring time came and went. So did summer. Fall came and we fired up the spa heater... and nothing. Checked pilot. Checked the temp setting. All OK. Called the pool company. They showed up the next day.Upon inspection they gave the bad news:  The heat exchanger went out and that allowed water to get into the main heater and compromised all the electronics which caused the whole unit to fail. Nothing but rust was left. Nothing to repair or salvage.Now, if you are selling me a unit for $2400 and it is professionally installed and it worked from day one and it craps out in 18 months, then I attribute the failure to faulty manufacturing. One star is generous.

### ⭐ 







  
  
    Broke in Two Months
  

*by M***E on Reviewed in the United States 🇺🇸 on December 14, 2018*

We purchased this heater after the heater we had for 17 years finally went. The pool heater was purchased in June 2018 and in August just 2 months later the heater stopped working and water was leaking out of it. Contacted the company and was told that parts were under warranty but not labor. Finally spoke to another person that said they would send out a service manager. He came and told us that because the PH was low in the pool it ruined the heater. Nothing now was under warranty! He said it would cost too much to fix and we should just get a new one. $2500!! For just two months. We have the water tested by a local pool company and the PH has always been fine. Never low. I would never recommend this to anyone.  I would give zero stars but you have to pick something. If the unit can break in 2 months because PH is low there is something wrong with it. Even though our PH has been fine how can we prove it.

### ⭐⭐⭐⭐⭐ 







  
  
    Nice Heater
  

*by R***Y on Reviewed in the United States 🇺🇸 on January 22, 2016*

I replace my Jandy LT400 heater with the JXI400N. Installation was not difficult for a DIYer.  I primarily use the heater to heat up my hot tub not the pool, this heater is a lot smaller than the LT400 which I was concerned about. What I have observed is that it heats about 20% faster than the LT400. Very happy with the small size, it looks much better and give me more room on the equipment pad.

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**Shop now:** [https://www.desertcart.co.za/products/18654324-jandyjxi400n-compact-swimming-pool-spa-hot-tub-natural-gas-heater](https://www.desertcart.co.za/products/18654324-jandyjxi400n-compact-swimming-pool-spa-hot-tub-natural-gas-heater)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-13*