Part # W3H250FDN
Warranty 1 Year
Universal H-Series Low NOx Heaters
For In-Ground Pools and Spas - Electronic Ignition Dual Thermostat
Now With Cupro Nickel Heat Exchanger!
NEW Hayward Universal H-Series Low NOx heater combines industry-leading hydraulic performance; environmentally responsible low NOx emissions and a standard cupro nickel heat exchanger with a low profile appearance, lighter weight design, independent left or right side electric, water and gas connections plus 2" x 2 1/2" CPVC union connections to provide the ultimate installation flexibility for new or existing equipment pads.
It also includes a forced draft system that constantly moves air through the combustion chamber at a precise flow rate. As a result, all outside weather variables that can affect the heating performance, such as wind conditions, are eliminated - without having to install a high-wind stack.
NOTE: The Hayward Universal H-Series heaters meet the NOx Emission standards set by the California South Coast Quality Air Management Commission for 2001 and the Texas Natural Resource Conservation Commission Code.
Applications:
Overall Dimensions
I have 13’x26’ ingrown pool, so what size of natural gas I will need to heater my pool ??
Thanks
Reply
Hi, Abel. To achieve at least 1 degree temperature increase an hour, you will need at least a 200,000 BTU unit. A larger unit will provide you with a faster temperature increase.
Reply
what part do I use to convert a model H200fdp from outdoor to indoor
Reply
Hi, Cynthia. You will need to purchase an Indoor Vent Kit. They are different options based on the installation requirements. See pages 12-19 of the Hayward H-Series LoNox Installation Guide for more info.
Reply
My 17 year old H-200 went out last fall & I want to up grade to H-250 just want to make sure my 3/4 in gas line would be OK, I know the under ground line from meter is 1-1/2 yellow plastic ,I'm a Plumber in Indiana ,Another ? dose the heater come with union connections & will you ship to my house . Thanks John Mills.
Reply
Hello John, yes your plumbing will be fine to go with the H-250. The heater does come with the union connections and we do ship to your house.
Reply
Hi,
I live in Napa California. Solar no longer does the job of heating the pool because of our cedar trees have grown so much that they cover the roof where the panels are. It's time for a gas fired heater. Here are my questions:
1. I believe the pool holds about 22,000 gallons. It is "L-Shaped" about 36' at the longest and about 16"across at the long narrow. What size (in BTUs) will it take to heat it up? The more BTUs, the faster it will heat up?
Hi, Thomas. To heat your pool efficiently, a 250K BTU will be the starting size. The larger the unit, the faster it will heat.
Reply
Can i use this heater with a salt filtration system?
Reply
Yes, these units come standard with a cupronickel heat exchanger making them compatible to be used with a saltwater swimming pool.
Reply
We just bought a 250 btu propane hayward heater for our 33 ft by 18 ft above ground pool. We are planning on using a T at our tank and run another line because the one to house is only three eights. We are planning on running another line half inch at a distance of 110 feet. We are planning on using 1/2 inch iron pipe also for last 10 feet. What size should the second regulator be and how far should it be from the heater? Can we use the half iron pipe for the entire distance?
Reply
Good day, at this time we are unable to advise on gas or propane installations. You or the installer would need to contact Hayward 908) 355-7995 (U.S.).
Reply
The installation instructions state that you should not install the heater within 24" of any outdoor HVAC equipment. Is this a requirement or suggestion?
What is the reason for this restriction? I do not see a similar restriction in the installation instructions for heaters from other manufacturers such as Raypak and Jandy.
Reply
Hi. This is a requirement. This unit draws air into the unit so that it can breathe or have adequate ventilation. If the unit is installed that close it will not be able to draw sufficient air into the unit suffocating it.
Reply
I am installing a 250,000btu Hayward pool heater outside. Installers said that since I am installing outside but close to windows I would need to vent upward passed the roofline. . I ordered the neg pressure kit (venting vertically). Do I need to use all the kit( tubing and switches) that come with the kit. Can I just used the bonnet assembly only?
Reply
Hello- On page 18 of this link you can find the installation instructions for the vent kits: http://images.inyopools.com/cloud/documents/universalh-serieslownox.pdf.
Reply
How will the H250FDN work at a 5,000 ft elevation?
Reply
Hi. Yes, it can. You will need the Universal H-Series High Altitude Kit - FDXLHAK1930.
Reply
Hi
I have an old Hayward 250 that heats a pool 16 x 32. I would like to buy a new one but have noticed that the gas line might not be large enough. From the meter there is 50’ of 1” then it changes to 3/4” for another 50’. The old heater worked fine with this for many years. Do you think a new H 250 would work with this gas line or is there another heater that would.
Thanks
Reply
Hi, I'm showing if you have a Two Stage Regulation System then you can use 1/2" gas line up to 150' from the outlet of the first regulator to the inlet of the 2nd regulator and then 3/4" gas line from the second regulator to the heater, not to exceed 10'. If you have a single stage regulator and you have 50' of 3/4" gas line then, unfortunately, you would need to go to a smaller 150,000 BTU heater like the Hayward 150,000 Universal Heater.
Reply
I have a 16' X 32' X 4' pool and I would like to know if I need a 200k or a 250k
I'm leaning toward the 250K but is it too much?
Reply
Hello, I would recommend going with the H250FDN. Please be advised that you must have the proper gas line size in order for this to work. Please see page 22 of this manual to see if you meet the requirements.
Reply
I work at hotel and our current heater for a 600 gallon indoor spa is starting to leak. It is a Pentair purex trion MiniMax 250. What size Hayward H series would you recommend. We maintain it at 102 degrees in a pool are that is constantly in the 80's.
Reply
Hi, Mike. You can use the H250FDNASME unit as a replacement for your old MiniMax 250.
Reply
what is the most energy efficient heater nat gas150-250,000 btus also my pool is about 17,000 gals what BTU system to use
Reply
Hello- The best option to ensure year-round use of the pool would and efficiency would be the Hayward Pool Heater Universal H-Series, for the price I would go with the H250FDN if your gas line will accommodate that amount of BTU's.
Reply
If I use a variable speed pump and it is programmed at low speed I assume the heater can be set to ON and the pressure sensor will shut the heater down. If, later, the pump speed is programmed higher will the sensor turn the heater back on? If so, does this cause any damage to the heater?
Reply
Hi, Jack. That is correct, the heater will only turn on when the water flow is within the operating range. This will not cause any damage to the heater.
Reply
Hi, does this unit come with an outlet plug attached or does my electrician have to attach one electrically?
Reply
Michael, The heater does not come with a cord. It is preset to 230v. It can also be wired for 115v. Your electrician would supply the cord when the unit is installed.
Reply
Will a 3/4 in natural gas line run this unit. App 35 ft from main gas meter .old pool heater is 175 k btu and has plenty of pressure.
Reply
Hello, A 3/4" gas line at 35 feet will only accommodate the H150FDN. For the H250FDN, you will need a 1" gas line.
Reply
Hi, We have a 18 x 36 inground pool with a extended stair cove. I believe we have 20 to 25.000 gallons. will this worrk for our pool
Reply
Hello, This unit is normally for an 18,000 gallon, I would go for the next size up or if you would like to heat faster it would be a 400btu unit.
Reply
Hi, We have a 18 x 36 inground pool with a extended stair cove. I believe we have 20 to 25.000 gallons. will this worrk for our pool
Reply
Hello, the 250 btu is normally for a 18,000 gallon pool, if you would like for 20-25,000 gallon I would goto the next size up or if you would like to heat your water faster you can go with a 400btu unit.
Reply
I need to replace my 13 year old Hayward H250, is the Hayward Pool Heater Universal H-Series Low Nox 250K BTU NG the current replacement?
Reply
Hi, Bell. Yes, this H250FDN unit can be used as a replacement.
Reply
I have a Aqualink RS4 control unit in my home that I could turn on and set my old pool heater temperature to, will this heater also work with my control unit?
Reply
Yes the Hayward H250FDN will also work with your Jandy AquaLink control system.
Reply
What is the gauge of wire needed to hook up the heater from the panel to the unit? I believe it is 14 AWG but just confirming.
Reply
Hi, AshBai. The gauge of the wire is determined by the voltage and run. You will have to consult an electrician.
Reply
The picture of the Hayward 250 FDN you have on your web site shows a protective cover over the control panel, which is something I wished my current heater had I might have prevented the buttons to stop working. I have not seen this feature on any other web sites for this model, is the picture accurate and is there a specific model that has this that other web site are not showing?
Reply
We have updated our picture to how they are being sold now, the other websites that I am looking at still have the older version.
Reply
I see you're also selling a train 250000 BTU which unit would be better for my above ground 18000 gallon pool
Reply
Hi, David. This unit will be capable of heating an 18,000 gallon above ground pool but to size a unit properly we will need the surface area of the pool.
Reply
I am looking to replace an older heater with a natural gas heater 225,000 BTU range. I am looking for a heater that will also control my pump, so there is only one control panel. Is this something you sell?
Reply
Hi Phil, I'm not aware of any gas heaters that would control a pump. They're are some variable speed pumps that are available that has an auxiliary relay that can be used to provide power to a heater or other equipment.
Reply
Dear Madame, Sir, Is it possible to ship to the Netherlands?
Thanks in advance for your reply
Regards Duco
Reply
It can be shipped to the Netherlands, but a big item like that we would ship to a port in the United States and you would set up a freight forwarder to ship the rest of the way. For items that do not need a freight forwarder would be shipped UPS Worldwide.
Reply
can this be installed inside a pool house, if so what other material will I need to hook up to the chimney, that is there.
Reply
You would need the indoor vent kit to go along with that heater, part number UHXNEGVT12501.
Reply
How many boards are in the heater?
Reply
Hi, This unit has a total of 3 circuit boards, the Integrated Control Board (FDXLICB1930), the Field Wiring Panel (FDXLFWP1930) and the Display Board (IDXL2DB1930).
Reply
How many boards are in the heater?
Reply
Hi, This unit has a total of 3 circuit boards, the Integrated Control Board (FDXLICB1930), the Field Wiring Panel (FDXLFWP1930) and the Display Board (IDXL2DB1930).
Reply
I just set up my new pool and heater a few days ago. Everything was working fine for 3 days but then my heater display went blank. I checked all the voltages and fuses and that seems good. Anything else I should be checking? It's a Hayward H Series 250000 BTU Electronic Natural Gas Inground Swimming Pool Heater
CODE: H250ED2C
Reply
Hi George, You will need to confirm that the ribbon is connected properly. If the ribbon cable is secured then you will have to contact Hayward for warranty.
Reply
pool heater is to be installed indoors. i do not see a venting system
Reply
Eddie- The H250FDN Hayward Pool Heater Universal H-Series Low Nox 250K BTU NG can be installed indoors with the use of the Indoor Vent Adapter Kit H250FD Positive-Pressure (Horizontal) or Indoor Vent Adapter Kit H250FD Negative-Pressure (Vertical).
Reply
I had a 1 inch gas line installed for heater. It is approx. 145 feet from source. I was told it was plenty, not I hear it is not? 350,000 BTU heater. Does anyone know the answer? Apparently Tarson pools doesn't know
Reply
Hi Bill, The Hayward H-series LoNox Installation Guide requires 1-1/2" pipe for Natural Gas or 1-1/8" pipe for Propane for the 350,000 BTU unit within 100-200 feet distance.
Reply
What size vent do I need for a Hayward 250000 btu pool heater?
Reply
The Hayward H250 requires 6" vent pipe when installing indoors. You will also require an Indoor Vent Kit for this heater if installing indoors. Two models of vent kits are available Hayward H250 Indoor Vent Kit for Vertical Venting and Hayward H250 Indoor Vent Kit for Horizontal Venting.
Reply
The new H250FD flanged pipe nipples are 2 1/2 inch. My older Hayward is all 1 1/2 pipe . Is the a converter to reduce to 1 1/2 PVC .
Reply
Frank, You can get a 2" to 1.5" PVC reducer at your local hardware store, it nothing special.
Reply
Can I use my existing inch and a half water pipe when plumbing in this heater? It will require downsizing from the 2 inch connectors.
Reply
Hi Steve, Yes it would be fine to go from 1-1/2" plumbing up to the 2" ports on the heater. If this was the other way around you may have problems (i.e. if you had 2" plumbing and you were going down to 1-1/2" for the heater ports).
Reply
I want to install the Hayward Lownox heater on my pool but I live in the mountains at 3,000 foot elevation; do I need to buy a special high elevation heater?
Reply
Hello George, The Hayward Universal Low Nox are self adjusting up to 10,000 feet of elevation. Any installation above 2,000 feet will require a special restriction plate to be installed. Luckily, that plate comes standard with every heater so no need to purchase it separately.
Reply
Where can my heater be installed?
Reply
There are specific venting requirements and clearance distances that must be met to ensure proper operation. Consult the owner’s manual for exact specifications for your model of heater.NOTE: Gas fired heaters should be diagnosed and repaired by trained personnel.
Reply
Is it possible to convert this heater from natural gas to propane?
Reply
Yes, it is possible to convert this heater from natural to propane gas as there is a conversion kit for it. To view and purchase this kit you you will need to click here.
Reply
Is a vent required for typical outside installation for the Hayward 150k Ng Lo Nox heater?
Reply
For the Hayward Lo Nox heater, you would not need to purchase an additional vent if you are using it outside. If you are installing the heater outside, we recommend you purchasing a heater cover. This will protect your heater from debris, rain, snow, heat- or pretty much anything that could get caught in your heater. The Weather-Out Pool Heater Cover can be viewed on our website.
Reply
What is the difference between an Electronic and Millivolt ignition?
Reply
The basic answer is that Millivolt is the old style of ignition, using a standing pilot light. While the electronic ignition uses a spark start system like a gas grill. Electronic ignitions are more efficient in gas usage and also are better suited for high wind areas where a pilot light might get extinguished.
Reply
Will a gas heater operate at the low speed of a dual speed motor?
Reply
Probably not - Most gas heater will shut off at low GPM levels (20-40) to keep the heater cores from overheating - 20 for 200 BTUs, 40 for 400 BTUs. Depending on your pool system you might get these GPM levels at the low speed but generally these heaters must be run at the motor's high speed.
Reply
How do you know if a pool heater is a propane heater or a natural gas heater?
Reply
Typically in the product name we use the abbreviation of "LP" for propane or "NG" for natural gas. Click here for a full listing of our >Pool Heaters.
Reply
2 to 4 hrs
Screwdriver, Pliers, Wrench Set
1 1
My previous heater was problematic for the last ten years. With that being said I opened the pool this year and tryied stating the heater and the exhaust fan was totally rotten. I decided to turn threats INYO like always and purchase a new one The purchase and the delivery was seemless as always
The Most Helpful Review
10 1
(4 out of 5 stars) Efficient, easy to use Pool Heater
Reviewed By: David B. from Boston, MA ()
The Hayward 250 BU Lo-Nox natural gas heater is efficient and works quite well. More efficient than our old Hayward microvolt 250 BTU heater. The only drawback so far is the pressure limiter switch on the heater requires a 1 HP pump to work properly.
Was this review helpful to you?
The Most Recent Reviews
(5 out of 5 stars) Fantastic
Reviewed By: ()
Replaced a 2007 model h250 with new model. Many improvements to current model. Minor plumbing to place in same location. Inyo shipped quick attractive price. Free shipping.
Was this review helpful to you?
(5 out of 5 stars) Heater has been working fantastic
Reviewed By: ()
Heater has been working fantastic
Was this review helpful to you?
(5 out of 5 stars) Hayward Heaters produce!
Reviewed By: ()
I picked this heater due to the wind conditions here on Padre Island. It out performs the others in this environment, plus it pairs well with my Hayward pump. I did have to change the side of the inlet/outlet and it was simple and straight forward. The wiring was simple as well. No special consideration as I wired it 220/240 volt, but it is simple enough to wire 115 volt as well. This heater works as well or better than my last one which was a Raypak. I also like that it has the cupronickel heat exchanger standard! I would definitely recommend this heater. Hayward makes an excellent product.
Was this review helpful to you?
(4 out of 5 stars)
Reviewed By: ()
works well and very easy to install.
Was this review helpful to you?
1 0
(5 out of 5 stars)
Reviewed By: ()
Shipping was received as predicted, in excellent shape. order was extremely easy, no problems.
Was this review helpful to you?
4 1
(5 out of 5 stars) Fast, Silent, and easy to use pool heater
Reviewed By: BJS8863 from McHenry, IL ()
Pros: Compact, Fast, Sient, and easy to use
Cons: Heavy - the electric hookup needs a complete cover
We have gone through 3 pool heaters in 5 years. For the equivalent price, this Hayward (The only brand I will every buy in pool heaters) heats the water faster - 20 degrees in less than 48 hours, easy to start, and the flow monitor is great, and it doesn't sound like its going to rocket to the stars.
Was this review helpful to you?
4 0
(5 out of 5 stars) Hayward Low Nox 250K BTU Pool Heater
Reviewed By: T Will from Elizabethtown, KY ()
This is a fantastic heater. Our gas bill is significantly lower than with the previous heater. Highly recommended!
Was this review helpful to you?