Hayward W3H250FDN Pool Heater | Universal H Series - 250K BTU, Natural Gas, Low NOx
Hayward W3H250FDN Pool Heater | Universal H Series - 250K BTU, Natural Gas, Low NOx
Upgrade your pool heating with the Universal H-Series Natural Gas 250,000 BTU Low NOx heater. Shasta Pool Supply extends the best deals on Hayward pool equipment. Specifically, The W3H250FDN energy-efficient powerhouse delivers exceptional performance and meets clean air quality standards.
Hayward W3H250FDN Pool Heater
The Universal H-Series provides for both new construction and renovation projects. Additionally, its installation-adaptable design makes a favorite among pool service professionals. Presently, the heater's energy efficiency translates to lower utility bills and reduced environmental impact.

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Key Features
• Standard cupro nickel heat exchanger for excellent salt water and chemical corrosion resistance
• Exclusive "Totally Managed" water flow system ensures faster, more efficient heating
• Patented header by-pass design reduces pump run-time for significant cost savings
• 2in x 2 1/2in CPVC union plumbing connections adapt to larger plumbing for greater efficiencies
• Low NOx emissions comply with strict environmental regulations
Technical Specifications
- Heating Capacity: 250,000 BTU/hr
- Fuel Type: Natural Gas
- Dimensions: 24" x 25" x 29.5"
- Weight: 165 lb
- Water Flow Rate: 25-125 GPM
- Circuit Amps: 5.5
- Maximum Fuse Breaker Size: 15 Amps
Specs
- Part Number: W3H250FDN
- Manufacturer: Hayward
- Length: 24.0
- Width: 25.0
- Height: 29.5
- Voltage: 120/240
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What our customers are saying
Our pool water is very clear. I wasn't really expecting this from the Shasta Pure unit... I feel like our pool is more clear looking, its kinds like swimming in drinking water...
Our pool water is very clear. I wasn't really expecting this from the Shasta Pure unit... I feel like our pool is more clear looking, its kinds like swimming in drinking water...
Erin A.
Service was good. Good communication Fast shopping. No nonsense !!!!
Service was good. Good communication Fast shopping. No nonsense !!!!
Scott G.
I have an older Shasta pool so I am glad I can at least get replacement parts but I had to drive a long ways to get them. The people at TSpoolsupply were very helpful and had my parts the morning I ordered them. The parts were actually for a newer model of the pop up rotation device and but I was able to take the new gears and combine them with the old parts and keep my pool working. It would have been nice to know that because I had to assemble it more than once to notice some of the parts were different.
I have an older Shasta pool so I am glad I can at least get replacement parts but I had to drive a long ways to get them. The people at TSpoolsupply were very helpful and had my parts the morning I ordered them. The parts were actually for a newer model of the pop up rotation device and but I was able to take the new gears and combine them with the old parts and keep my pool working. It would have been nice to know that because I had to assemble it more than once to notice some of the parts were different.
Dean W.
FAQ
Our expert staff answers customer's most asked questions.
What shipping options do you offer?
We offer local pick-up at both our Phoenix and Mesa locations, along with Free Shipping on orders $150 or more. To learn more about our shipping options, click here.
How many BTUs does my heater need to heat a pool or spa?
The ideal BTU rating for your heater depends on your desired heating speed. A 200 BTU or 250 BTU heater is suitable for a spa or pool, while a 400 BTU heater will heat your pool and spa more rapidly.
Should I cover my spa or pool with a custom spa cover or solar pool cover if I am heating my pool?
Yes, it is advisable to cover your pool when heating it. Failure to do so allows generated heat to escape, causing the heater to work harder and resulting in higher heating costs. Consider using a custom spa cover or solar pool cover to optimize the efficiency of your heating system.
Learning Center
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