---
product_id: 812702
title: "HaywardH250FDN Universal H-Series 250,000 BTU Pool and Spa Heater, Natural Gas, Low Nox"
brand: "hayward"
price: "A$12672"
currency: AUD
in_stock: true
reviews_count: 7
url: https://www.desertcart.com.au/products/812702-haywardh250fdn-universal-h-series-250-000-btu-pool-and-spa
store_origin: AU
region: Australia
---

# HaywardH250FDN Universal H-Series 250,000 BTU Pool and Spa Heater, Natural Gas, Low Nox

**Brand:** hayward
**Price:** A$12672
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** HaywardH250FDN Universal H-Series 250,000 BTU Pool and Spa Heater, Natural Gas, Low Nox by hayward
- **How much does it cost?** A$12672 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/812702-haywardh250fdn-universal-h-series-250-000-btu-pool-and-spa)

## Best For

- hayward enthusiasts

## Why This Product

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

## Description

Product Description          Universal H-Series 250, 000 BTU Pool and Spa Heater, Natural Gas, Low Nox             From the Manufacturer          The Hayward Universal H-Series gas heater is the “universal” energy efficient remedy for any new or existing pool or spa. An industry leading hydraulic design reduces circulation pump run time to provide energy savings of up to 18% when compared to less efficient competitors. The energy efficiency of the Universal H-Series gas heater combines with low Nox emissions, a standard Cupro nickel heat exchanger and ultimate installation flexibility on new or existing equipment pads to responsibly heat a pool or spa today and for years to come.

## Features

- Standard Cupro nickel heat exchanger for superior value and reliability
- Patented polymer header and bypass valve design for the ultimate in hydraulic efficiency and reliability
- Hayward Universal design for easy and versatile professional installation
- Environmentally responsible low NOx emissions to meet or exceed air quality emission standards in all Low NOx regions

## Images

![HaywardH250FDN Universal H-Series 250,000 BTU Pool and Spa Heater, Natural Gas, Low Nox - Image 1](https://m.media-amazon.com/images/I/612qQNf45DL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Nice heater for the money
  

*by W***R on Reviewed in the United States 🇺🇸 on September 16, 2022*

We recently installed this heater to go with our Core 35 which is $1,400.00 itself to convert to a pool salt system. Usually our pool is cloudy but since going to salt it’s cleared up considerably.  We decided to install a heater after talking about doing so for years now as the pool is almost always cloudy during the summer and Generally we can only swim May - September due to the water getting to chili in October- April. We are hoping with this heater to extend our swimming season to 11 months out of the year.  It took roughly 4 days to install it  So it was a little hard to hook up we had to run gas lines literally all over the side of our house and through our attic and underground to get to our heater as you can see from the pictures.  We tested it out the first night and overnight it warmed our pool from 65* to 80*F,  Def can feel the warm water coming out of the jets.  Looking forward to trying this out more in October and November when temperatures really drop down but so far I’m pleased with it.  Spent roughly $1,200.00 in labor to get the work done and another $800 in parts, like gas line pipes,  fittings plumbing and valves…  thankfully lowes was able to cut and put the fittings on our gas lines for us but I would say this is a minimum $4,500.00 project undertaking perhaps a bit more if using a pool company, professional plumber or if you live in a big city.  We got the 250,000 btu heater and our pool is roughly 22,500 gallons which maybe overkill but wanted to go to big rather than to small on a nice heater…Just wanted  to throw that out there for anyone considering getting one installed.  That price includes the cost of the unit. The unit really isn’t loud.Update we have had it a little over a week now and we love it!  We are in the pool almost daily now.  I generally keep the heater on 78* degrees and when I get off work and home around 530pm I’ll cracked it up to 104* and by 7:30pm it’s over 94*! Talking about nice and relaxing I could literally sit in the pool as if it were a hot tub!Updated after a month we are in October now and still like the heater. Gas bill was about $60 more than it normally is for this time of the year and we generally keep the heater on 82F in the pool.  One issue we have had is the heater will show the code LO every now and then and will go into a protection mode and will not work until you backwash and let the pressure out

### ⭐⭐⭐⭐⭐ 







  
  
    Heater Works Great, above average DIY skills are required, BIGGER is better
  

*by S***F on Reviewed in the United States 🇺🇸 on August 22, 2022*

I am very pleased with this heater.  Delivery took a little longer than originally anticipated but the communications were consistent if not necessarily the answers I wanted, I did always get an accurate answer.  I would attribute it to the hang ups with LTL Trucking in general.  I honestly can not fault the vendor, they seemed to be hobbled by the difficulties from the trucking industry.  They always did respond.The installation is for an 15 x 30  that goes from 3 to 8 feet deep, in ground pool in the Midwest.  I intentionally Oversized the heater because we don't plan on maintaining the temperature, but will fire up the heater prior to when we plan on using the pool.  All of the calculations indicated that 150K BTU was sufficient but with the 250K BTU heater I am able to bring up the temperature 1.5 to 2 degrees per hour.  So far this theory seems to be working out for us.  If during the week the lows are in the high 60's and the highs are in the high 70's to low 80's on Friday after noon or Saturday early morning we can have the pool a pleasant 85 degrees for Friday after work or Saturday late morning.  The old heater was removed a couple of years ago and just replaced.  But so far it is tough to tell exactly what it has cost to operate because of the overall increase in utility bills, but to date not awful.The installation manual is complete and easily followed but the processes do require significant plumbing, both Gas and Water, and an electrical connection, which may not be present if you are replacing an older milivolt type heater.  Fortunately I have done a lot of this type of work over the years and owned the tools and had the skill to complete the installation over the better part of a Saturday afternoon with a few trips to the hardware store.Our pool guy understandably didn't want to install a heater that he didn't sell.  I am sure that if we had wanted to we could have hired an Electrician to hook up the electrical and a plumber for the gas and water and still been $$ ahead.The down side is that the policy of the MFG is that the warranty is only valid if installed by one of their Dealer's installers.  We have had no issues so far and will cross that bridge if it comes up.

### ⭐ 







  
  
    Buyer be aware!!! Ad does not specify that the warranty is for parts only!
  

*by S***H on Reviewed in Canada 🇨🇦 on July 12, 2022*

We ordered this heater to replace a Hayward heater that failed after 3 years of use. After 6 weeks the new heater started leaking a large amount of water to the extent that I have to fill my pool by a few inches every day and repeatedly mop up water in my shed. The gas technician who installed it was shocked and suggested I ask Hayward to look at the heater since he believed the heater was beyond repair. The technician at Hayward told me that since I purchased it online there was no service warranty but they could replace the parts provided my technician complete and submit a form along with numerous photographs. So I have no idea when I will get the replacement parts and I will have to pay a technician to fill out the report and submit photos. If I had known there wasn’t going to be any support for this product I would never have ordered online and I certainly wouldn’t have ordered a Hayward product and never will again.

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-02*