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Hayward H250FDN Universal H-Series 250,000 BTU Pool and Spa Heater, Natural Gas, Low Nox

3.7 3.7 out of 5 stars 186 ratings

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  • 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

Customer ratings by feature

Easy to install
4.0 4.0
Value for money
2.4 2.4

Product 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.

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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Hayward H250FDN Universal H-Series 250,000 BTU Pool and Spa Heater, Natural Gas, Low Nox


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Hayward H250FDN Universal H-Series 250,000 BTU Pool and Spa Heater, Natural Gas, Low Nox
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Price$3,093.00$2,297.95$3,179.00$2,499.00$2,409.00
Delivery
Get it Apr 5 - 15
Get it Apr 1 - 4
Get it Apr 1 - 3
Get it Apr 1 - 4
Customer Ratings
Easy to install
4.0
4.4
3.5
4.1
3.5
Value for money
2.4
4.2
3.2
3.8
3.2
Sold By
In The Swim Pool Supplies
FibroPool
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US Parts Center
Spreetail

Customer reviews

3.7 out of 5 stars
3.7 out of 5
186 global ratings

Customers say

Customers like the ease of installation, value, and performance of the outdoor living product. For example, they mention it's very easy to install and operate, and well worth the money. They're also happy with quality, and appearance. That said, some complain about the leakage and opinions are mixed on noise.

AI-generated from the text of customer reviews

58 customers mention45 positive13 negative

Customers like the performance of the outdoor living product. They say it has worked well, excellent, and has had no issues. Some say that the heater is well built and easy to install.

"...Well built, but poor design with sharp edges near power wires!Otherwise the install was simple and took less than two hours...." Read more

"...Propane version so I paid alot for tanks and such. Worked great for about a year, then the trouble codes started. Changed two sensors then ok...." Read more

"...Wife & I have named it "Hefty Harry the Heater". Works like a charm - ignites with authority and pumps out the heat...." Read more

"...Despite all this work, the Hayward pool heater still does not work well and as I stated Hayward technical does not return calls and it is impossible..." Read more

39 customers mention33 positive6 negative

Customers find the installation process of the pool heater to be easy. They mention that the unit can be reversed for easier hook-up, and that the power to the unit was clear and easy to connect. Some mention that they had no problems with the whole ordering process.

"...It was pretty easy and this was the first time I've ever run a steel gas line. I do want to address the reviews stating this unit is LOUD?..." Read more

"...Works like a charm - ignites with authority and pumps out the heat. It's too easy - wife has learned how to use it and raises the temp to an..." Read more

"...The heater installed easily and fired right up.This heater is physically smaller than the old heater, and it has much nicer controls...." Read more

"...I am a Plumbing Contractor and a General Contractor so installation was not difficult...." Read more

17 customers mention17 positive0 negative

Customers appreciate the value of the outdoor living product. They say it's well worth the money, and not too expensive to run. Customers also mention that it was shipped well protected and was a great transaction.

"The price of the unit was very good, The digital controls on the unit are not the ones in the owners manual...." Read more

"...Once it was in, worked wonderfully all summer. Wasn't too expensive to run either. Look up tips for saving money while running a pool heater online...." Read more

"...I would definitely buy it again. Better price than the local pool stores. I decided to have a professional install it, and still came out ahead...." Read more

"...And we got it at a great price." Read more

15 customers mention15 positive0 negative

Customers are satisfied with the quality of the pool heater. They mention it's a great product that heats water better than expected, and it heats the pool very quickly. Some say that it works all summer without any issues, and is a good product for extending the swimming season.

"...Works like a charm - ignites with authority and pumps out the heat...." Read more

"...While it is audible, I don't find it offensive at all.It's a nice heater, and I'm already enjoying a warm pool, thanks to it...." Read more

"Best heater ever. Just make sure that you have enough gas pressure. That is very. very important. you will need 10lbs. at a min. About the heater...." Read more

"...Had no issues. Up and running all summer. Only took about 5hours to raise 25k gallon pool from 72 to 85 degrees...." Read more

10 customers mention10 positive0 negative

Customers like the appearance of the pool heater. They appreciate the sleek design and low profile of the unit. The owner's manual is well written and illustrated, making it simple to operate. The heater is physically smaller than the old one, and it has nicer controls. It is also easy to install and fit nicely with just the normal amount of water.

"...This heater is physically smaller than the old heater, and it has much nicer controls...." Read more

"...You will save a lot and this model is very handsome, sleek, low profile and easy to operate." Read more

"...be set to play upon several user-chosen scenarios; Owner's Manual is well written and illustrated; unit's fairly simple to operate and much quieter..." Read more

"...This is quiet, well designed, compact and for my 20,000 gallon pool it can move my temperature from 76 to 85 in just about 4 hours - which is..." Read more

18 customers mention10 positive8 negative

Customers are mixed about the noise of the outdoor living product. Some mention that it's shockingly quiet, while others say that it sounds like a jet engine when it' is on.

"...For example, my pool pump at one foot away is 53 Db! This thing is shockingly quiet so I'm very puzzled by the warnings of the noise...." Read more

"...This process does produce a bit of a roar, though, which is the sound that some have mentioned...." Read more

"...Update 31 Dec 2013: New unit is working without issue; is definitely quieter than previous, older model H250 - light-off and blower motor I..." Read more

"Disregard any reviews of noise... thats just not accurate. This is quiet, well designed, compact and for my 20,000 gallon pool it can move my..." Read more

9 customers mention3 positive6 negative

Customers have mixed opinions about the igniter. Some mention that it works like a charm, ignites with authority, and pumps out the heat. However, others say that it has ignition failures from the first day and disables the unit.

"...Now two weeks later.....failed again and will not ignite. Look elsewhere, this is a piece of garbage...." Read more

"...allows the heating to take place in a smaller space, and gives a much more controlled burn which results in lower emissions and higher efficiency...." Read more

"...Had a little difficulty firing it up the first time. It wouldn't start - fumbled around and found the gas valve inside - turned it to "on"..." Read more

"...installed and it worked fine for three weeks before an ignition failure disabled the unit...." Read more

9 customers mention0 positive9 negative

Customers are dissatisfied with the leakage of the outdoor living product. They mention that it leaks water out of the heater and has a leak at the copper tubing into the heat exchanger.

"...4 days after installation of the heater, my pool developed a serious water leak...." Read more

"...I noticed there was water leaking out of the heater...." Read more

"...in the third year and now that I'm in the 4th year the heat exchanger is leaking like a sieve from a weak connection...." Read more

"...It is now only 30 months old and has a leak at the copper tubing into the heat exchanger. In less than 3 years, two major repairs needed...." Read more

Very easy DIY install and it run SUPER QUIET
5 Stars
Very easy DIY install and it run SUPER QUIET
I installed this system myself using nothing more than the included instructions. It was pretty easy and this was the first time I've ever run a steel gas line. I do want to address the reviews stating this unit is LOUD? I have no idea what happened, but the unit I received is running at full max 90º setting, heating up my pool from a cold 64º. It's up to 68º in just two hours! Back to the noise, I've attached a screen shot of my dB meter. The H250FD at 12 inches away from the top of the unit is registering 47 Db! For example, my pool pump at one foot away is 53 Db! This thing is shockingly quiet so I'm very puzzled by the warnings of the noise. Perhaps these customers received a faulty unit?One thing I will warn you about if you install this yourself. After wiring everything up, pressure testing the gas line and water lines.. I went over to the electric panel and switched on the circuit. Immediately the pool heater went BOOOMMM! And smoke started coming out of the side! It was my fault, for the most part. The area where the power wires connect have metal dividers with labels on them, which have edges that are razor sharp! Why they thought this would be ok I don't know. When screwing down the cover it pressed one of the positive wires against the sharp edge and it cut threw the wire effectively grounding the 240V to the units medal body. Of course when I applied power it went BOOM! Amazingly, the breaker at the house blew and when I detected the problem and re-wired the unit, (removing the two phillips head screws and pulling out the pesky divider). I was down right shocked to see the unit power right on when I flipped the breaker the second time. This pool pump took 240V direct to the chassis and it didn't damage a single electrical component inside. Well built, but poor design with sharp edges near power wires!Otherwise the install was simple and took less than two hours. I was removing an old electric heat pump so the main water connections and power were already run to the area. Don't be afraid to install this yourself and save that money!
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Top reviews from the United States

Reviewed in the United States on April 16, 2014
Customer image
5.0 out of 5 stars Very easy DIY install and it run SUPER QUIET
Reviewed in the United States on April 16, 2014
I installed this system myself using nothing more than the included instructions. It was pretty easy and this was the first time I've ever run a steel gas line. I do want to address the reviews stating this unit is LOUD? I have no idea what happened, but the unit I received is running at full max 90º setting, heating up my pool from a cold 64º. It's up to 68º in just two hours! Back to the noise, I've attached a screen shot of my dB meter. The H250FD at 12 inches away from the top of the unit is registering 47 Db! For example, my pool pump at one foot away is 53 Db! This thing is shockingly quiet so I'm very puzzled by the warnings of the noise. Perhaps these customers received a faulty unit?

One thing I will warn you about if you install this yourself. After wiring everything up, pressure testing the gas line and water lines.. I went over to the electric panel and switched on the circuit. Immediately the pool heater went BOOOMMM! And smoke started coming out of the side! It was my fault, for the most part. The area where the power wires connect have metal dividers with labels on them, which have edges that are razor sharp! Why they thought this would be ok I don't know. When screwing down the cover it pressed one of the positive wires against the sharp edge and it cut threw the wire effectively grounding the 240V to the units medal body. Of course when I applied power it went BOOM! Amazingly, the breaker at the house blew and when I detected the problem and re-wired the unit, (removing the two phillips head screws and pulling out the pesky divider). I was down right shocked to see the unit power right on when I flipped the breaker the second time. This pool pump took 240V direct to the chassis and it didn't damage a single electrical component inside. Well built, but poor design with sharp edges near power wires!

Otherwise the install was simple and took less than two hours. I was removing an old electric heat pump so the main water connections and power were already run to the area. Don't be afraid to install this yourself and save that money!
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Reviewed in the United States on October 5, 2017
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Reviewed in the United States on September 15, 2014
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Reviewed in the United States on May 1, 2017
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Top reviews from other countries

LDB
5.0 out of 5 stars Great
Reviewed in Canada on May 16, 2018
4 people found this helpful
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peter schouten
5.0 out of 5 stars exactly what it says it is
Reviewed in Canada on February 19, 2020