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The Hayward W3H400FDN H-Series Natural Gas Heater 400K BTU Low NOx is a large, industrial outdoor generator with a black and grey casing and multiple vents, designed to offer low NOx emissions.
The Hayward W3H400FDN H-Series Natural Gas Heater 400K BTU Low NOx is a heavy-duty, portable device encased in a rugged design, featuring an LCD display and various connection ports on the side, and is designed with Universal H-Series low NOx emissions technology for energy-efficient performance.

Hayward 400K BTU H-Series Natural Gas Heater Cupro Nickel W3H400FDN

Hayward
$4,199.00 - $4,199.00
$4,199.00
$4,199.00 - $4,199.00
$4,199.00

The Hayward Universal H-Series Pool and Spa Gas Heaters are known for their energy-efficient and reliable heating capabilities and are suitable for...

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$4,199.00 - $4,199.00
$4,199.00
$4,199.00 - $4,199.00
$4,199.00
The control panel of the Hayward 400K BTU Universal H-Series Propane Heater Cupro Nickel W3H400FDP, a product by Hayward, includes buttons for standby, spa, pool, temperature setting, and mode. This energy-efficient model features a robust cupro nickel heat exchanger to guarantee long-lasting performance.
Hayward's 400K BTU Universal H-Series Propane Heater, featuring a Cupro Nickel build and multiple vents for improved energy efficiency, is shown from the side in tan and black with its advanced Universal H-Series control panel.

Hayward 400K BTU Universal H-Series Propane Heater Cupro Nickel W3H400FDP

Hayward
$4,199.00 - $4,199.00
$4,199.00
$4,199.00 - $4,199.00
$4,199.00

The Universal H-Series is an energy-efficient, high-performance, installation-adaptable commitment to the pool service professional. Appli...

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$4,199.00 - $4,199.00
$4,199.00
$4,199.00 - $4,199.00
$4,199.00
A machine with a digital display panel and side-mounted vents, mirroring the sleek design of the Hayward 135K BTU H-Series Natural Gas Above Ground Heater W3H135FDN, is displayed against a plain background.
A large, beige generator with a control panel on one side, similar to the trustworthy Hayward 135K BTU H-Series Natural Gas Above Ground Heater W3H135FDN.

Hayward 135K BTU H-Series Natural Gas Above Ground Heater W3H135FDN

Hayward
$1,949.00 - $1,949.00
$1,949.00
$1,949.00 - $1,949.00
$1,949.00

The Hayward H-Series W3H135FDN 135K BTU Natural Gas Heater for above-ground pools and spas delivers reliable technology, fast heating, and e...

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$1,949.00 - $1,949.00
$1,949.00
$1,949.00 - $1,949.00
$1,949.00

Raypak 264K BTU Avia HD Natural Gas Heater w/Wi-Fi, NiTek, P-R264A-EN-N 0-4500 018044, 33K gal

Raypak
$3,802.00 - $3,802.00
$3,802.00
$3,802.00 - $3,802.00
$3,802.00

The Raypak Avia® HD Gas Heater with a NiTek heat exchanger offers superior corrosion resistance, enhanced durability, and greater efficiency compar...

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$3,802.00 - $3,802.00
$3,802.00
$3,802.00 - $3,802.00
$3,802.00
The Pentair Pool 400K BTU MasterTemp Propane Heater EC-462029 boasts a beige and black design with side vents and pipes, combining sleek aesthetics with energy efficiency. Its pre-mixed combustion technology guarantees optimal performance, making it an intelligent choice for your pool.
The Pentair Pool 400K BTU MasterTemp Propane Heater EC-462029, showcased in elegant white and black, incorporates display controls and vents. Boasting pre-mixed combustion technology, this MasterTemp Heater enhances energy efficiency for all your pool heating requirements.

Pentair 400K BTU MasterTemp Propane Heater EC-462029

Pentair Pool
$4,199.00 - $4,199.00
$4,199.00
$4,199.00 - $4,199.00
$4,199.00

The MasterTemp Heater provides energy-saving and advanced operating features available only from much larger heaters. With its revolutionary pre-mi...

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$4,199.00 - $4,199.00
$4,199.00
$4,199.00 - $4,199.00
$4,199.00
The Pentair Pool 250K BTU MasterTemp Propane Heater EC-462027 features a beige and black design that ensures optimal thermal efficiency. It utilizes pre-mixed combustion technology and offers multiple side pipe connections for seamless integration.
The Pentair Pool 250K BTU MasterTemp Propane Heater EC-462027 features a rectangular design with a control panel and side vent, showcasing its advanced pre-mixed combustion technology for optimal thermal efficiency.

Pentair 250K BTU MasterTemp Propane Heater EC-462027

Pentair Pool
$3,279.00 - $3,279.00
$3,279.00
$3,279.00 - $3,279.00
$3,279.00

The MasterTemp Heater provides energy-saving and advanced operating features that were only available from much larger heaters. With its revolution...

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$3,279.00 - $3,279.00
$3,279.00
$3,279.00 - $3,279.00
$3,279.00
The Pentair Pool 250K BTU ETi Natural Gas Heater (model 461112) features a rectangular design with an exhaust vent and incorporates TitanTough™ Titanium for enhanced durability. Known for its thermal efficiency, it ensures your pool remains perfectly heated throughout the season.
The Pentair 250K BTU ETi Natural Gas Heater 461112 from Pentair Pool offers exceptional thermal efficiency, with a robust metal exhaust pipe on top and two side pipe connections.

Pentair 250K BTU ETi® 250 Natural Gas Heater (461112)

Pentair Pool
$7,249.00 - $7,249.00
$7,249.00
$7,249.00 - $7,249.00
$7,249.00

Efficiently heat your pool for comfortable temperatures year-round with the ETi 250. With quick heat-up times and the durable TitanTough™ Direct-Fi...

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$7,249.00 - $7,249.00
$7,249.00
$7,249.00 - $7,249.00
$7,249.00
Close-up of the connection panel on the Hayward 250K BTU H-Series Natural Gas Heater Cupro Nickel W3H250FDN, featuring multiple black pipe fittings. This energy-efficient heater from Hayward not only provides effective heating but also offers low NOx emissions, making it an ideal choice for any discerning pool service professional.
The Hayward 250K BTU H-Series Natural Gas Heater Cupro Nickel W3H250FDN is a black and tan rectangular unit equipped with a control panel and multiple vents, designed for energy efficiency. This environmentally friendly heater is perfect for pool service professionals looking for a low NOx emissions option.

Hayward 250K BTU H-Series Natural Gas Heater Cupro Nickel W3H250FDN

Hayward
$3,299.00 - $3,299.00
$3,299.00
$3,299.00 - $3,299.00
$3,299.00

The Universal H-Series is an energy-efficient, high-performance, installation-adaptable commitment to the pool service professional. Appli...

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$3,299.00 - $3,299.00
$3,299.00
$3,299.00 - $3,299.00
$3,299.00

Raypak 399K BTU Avia HD Propane Heater w/Wi-Fi, NiTek, 018051 P-R404A-EP-N, 50K gal

Raypak
$4,498.00 - $4,498.00
$4,498.00
$4,498.00 - $4,498.00
$4,498.00

The Raypak Avia® HD Gas Heater with a NiTek heat exchanger offers superior corrosion resistance, enhanced durability, and greater efficiency compar...

View full details
$4,498.00 - $4,498.00
$4,498.00
$4,498.00 - $4,498.00
$4,498.00

Raypak 399K BTU Avia HD Natural Gas Heater w/Wi-Fi, NiTek, 018045 P-R404A-EN-N, 50K gal

Raypak
$4,498.00 - $4,498.00
$4,498.00
$4,498.00 - $4,498.00
$4,498.00

The Raypak Avia® HD Gas Heater with a NiTek heat exchanger offers superior corrosion resistance, enhanced durability, and greater efficiency compar...

View full details
$4,498.00 - $4,498.00
$4,498.00
$4,498.00 - $4,498.00
$4,498.00

Raypak 264K BTU Avia HD Propane Heater w/Wi-Fi, NiTek, P-R264A-EP-N 0-4500 018050, 33K gal

Raypak
$3,802.00 - $3,802.00
$3,802.00
$3,802.00 - $3,802.00
$3,802.00

The Raypak Avia® HD Gas Heater with a NiTek heat exchanger offers superior corrosion resistance, enhanced durability, and greater efficiency compar...

View full details
$3,802.00 - $3,802.00
$3,802.00
$3,802.00 - $3,802.00
$3,802.00

Raypak 399K BTU Avia Natural Gas Heater w/Wi-Fi, 018033 P-R404A-EN-C, 50K gal

Raypak
$4,196.00 - $4,196.00
$4,196.00
$4,196.00 - $4,196.00
$4,196.00

Raypak AVIA P-R404A-EN-C Natural Gas Pool Heater is the most innovative pool heating system, using the Wi-Fi-enabled Raymote app to control the tem...

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$4,196.00 - $4,196.00
$4,196.00
$4,196.00 - $4,196.00
$4,196.00
The Hayward W3H200FDN H-Series Natural Gas Heater 200K BTU Low NOx is a grey and black high-tech electronic device featuring a screen on top, two knobs on the side, and a rectangular slot in the front. It is ideal for use as an energy-efficient pool heat exchanger.

Hayward 200K BTU H-Series Natural Gas Heater Cupro Nickel W3H200FDN

Hayward
$2,999.00 - $2,999.00
$2,999.00
$2,999.00 - $2,999.00
$2,999.00

The Universal H-Series is an energy-efficient, high-performance, installation-adaptable commitment to the pool service professional. Appli...

View full details
$2,999.00 - $2,999.00
$2,999.00
$2,999.00 - $2,999.00
$2,999.00
A tan and black Hayward W3H150FDN H-Series Natural Gas Heater with a small digital display on top, ideal for the energy-efficient needs of a pool service professional.

Hayward 150K BTU H-Series Natural Gas Heater Cupro Nickel W3H150FDN

Hayward
$2,419.00 - $2,419.00
$2,419.00
$2,419.00 - $2,419.00
$2,419.00

The Hayward Universal H-Series Pool and Spa Gas Heaters are known for their energy-efficient and reliable heating capabilities and are suitable for...

View full details
$2,419.00 - $2,419.00
$2,419.00
$2,419.00 - $2,419.00
$2,419.00
The Hayward W3H200FDN H-Series Natural Gas Heater 200K BTU Low NOx is a grey and black high-tech electronic device featuring a screen on top, two knobs on the side, and a rectangular slot in the front. It is ideal for use as an energy-efficient pool heat exchanger.

Hayward 200K BTU H-Series Propane Heater Cupro Nickel W3H200FDP

Hayward
$2,999.00 - $2,999.00
$2,999.00
$2,999.00 - $2,999.00
$2,999.00

The Universal H-Series is an energy-efficient, high-performance, installation-adaptable commitment to the pool service professional. Appli...

View full details
$2,999.00 - $2,999.00
$2,999.00
$2,999.00 - $2,999.00
$2,999.00
A tan and black Hayward W3H150FDN H-Series Natural Gas Heater with a small digital display on top, ideal for the energy-efficient needs of a pool service professional.

Hayward 150K BTU H-Series Propane Heater Cupro Nickel W3H150FDP

Hayward
$2,419.00 - $2,419.00
$2,419.00
$2,419.00 - $2,419.00
$2,419.00

The Hayward Universal H-Series Pool and Spa Gas Heaters are known for their energy-efficient and reliable heating capabilities and are suitable for...

View full details
$2,419.00 - $2,419.00
$2,419.00
$2,419.00 - $2,419.00
$2,419.00

Raypak 399K BTU Avia Propane Heater w/Wi-Fi, 018039 P-R404A-EP-C, 50K gal

Raypak
$4,196.00 - $4,196.00
$4,196.00
$4,196.00 - $4,196.00
$4,196.00

Raypak AVIA P-R404A-EP-C Propane Gas Pool Heater is the most innovative pool heating system, using the Wi-Fi-enabled Raymote app to easily control ...

View full details
$4,196.00 - $4,196.00
$4,196.00
$4,196.00 - $4,196.00
$4,196.00

Raypak 264K BTU Avia Propane Heater w/Wi-Fi, 018038 P-R264A-EP-C, 33K gal

Raypak
$3,192.00 - $3,192.00
$3,192.00
$3,192.00 - $3,192.00
$3,192.00

Raypak AVIA P-R264A-EP-C Propane Gas Pool Heater is the most innovative pool heating system, using the Wi-Fi-enabled Raymote app to easily control ...

View full details
$3,192.00 - $3,192.00
$3,192.00
$3,192.00 - $3,192.00
$3,192.00

Raypak 264K BTU AVIA Natural Gas Heater w/Wi-Fi, 018032 P-R264A-EN-C

Raypak
$3,192.00 - $3,192.00
$3,192.00
$3,192.00 - $3,192.00
$3,192.00

Raypak AVIA P-R264A-EN-C Natural Gas Pool Heater is the most innovative pool heating system, using the Wi-Fi-enabled Raymote app to control the tem...

View full details
$3,192.00 - $3,192.00
$3,192.00
$3,192.00 - $3,192.00
$3,192.00
Close-up of a Hayward pool control panel with buttons and lights labeled for service, heat, standby, spa, pool, and modes. The Hayward W3H250FDP Universal H-Series Propane Heater 250K BTU Low NOx features a cupro nickel heat exchanger, offering an energy-efficient solution for your pool and spa needs.
A beige and black electronic device with a digital display screen and various buttons, likely the Hayward W3H250FDP Universal H-Series Propane Heater 250K BTU Low NOx.

Hayward 250K BTU Universal H-Series Propane Heater Cupro Nickel W3H250FDP

Hayward
$3,299.00 - $3,299.00
$3,299.00
$3,299.00 - $3,299.00
$3,299.00

The Universal H-Series is an energy-efficient, high-performance, installation-adaptable commitment to the pool service professional. Appli...

View full details
$3,299.00 - $3,299.00
$3,299.00
$3,299.00 - $3,299.00
$3,299.00
Industrial generator in tan featuring a digital display panel on its front, reminiscent of the design of the Hayward 135K BTU H-Series Propane Above Ground Heater W3H135FDP.

Hayward 135K BTU H-Series Propane Above Ground Heater W3H135FDP

Hayward
$1,949.00 - $1,949.00
$1,949.00
$1,949.00 - $1,949.00
$1,949.00

The Hayward H-Series W3H135FDP 135K BTU Liquid Propane Heater for above-ground pools and spas combines reliable technology, fast heating, and easy ...

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$1,949.00 - $1,949.00
$1,949.00
$1,949.00 - $1,949.00
$1,949.00

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Genuine Purechlor CLG125A-010 Replacement Salt Cell for 25K Gallon Pools

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PureChlor Replacement Service Cell for PureChlor Salt Chlorine Generator systems (*sold separately). These are authentic, genuine OEM replacement s...

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PureChlor Salt Generator Replacement Power Supply Box The PureChlor Power Supply (PSU) is the brains of your saltwater pool system. Fully certified...

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Genuine PureChlor Salt Chlorine Generator System Kit (Multiple Sizes)

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PureChlor Salt Chlorine Generator Systems are one of the most advanced salt systems on the market with built-in cell and power supply protections w...

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Low NOx Swimming Pool Heaters: Energy-Efficient, Eco-Friendly Options

Low NOx Pool Heaters: Eco-Friendly & Energy-Efficient Options

Low NOx (Nitrogen Oxides) pool heaters are designed to reduce harmful emissions and minimize the environmental impact of heating your pool. These energy-efficient systems are ideal for those looking to lower their carbon footprint without sacrificing performance. Low NOx heaters operate at a lower temperature than traditional models, resulting in fewer nitrogen oxide emissions—an essential factor for environmentally conscious pool owners.

Pros of Low NOx Pool Heaters:

  • Eco-Friendly: Reduced NOx emissions for a greener pool heating option.
  • Energy-Efficient: Lower energy consumption compared to standard heaters.
  • Longer Lifespan: Advanced technology extends the lifespan of the unit.
  • Regulatory Compliance: Meets stringent environmental standards for many regions.

Cons of Low NOx Pool Heaters:

  • Initial Cost: May have a higher upfront cost compared to traditional pool heaters.
  • Maintenance: Some models may require specialized servicing.

Leading brands like Pentair, Hayward, and Raypak offer top-tier Low NOx pool heaters, combining innovative technology with superior heating performance. Whether you’re interested in the Pentair MasterTemp Low NOx Heater, the Hayward H-Series Low NOx Heater, or the Raypak Low NOx Heater, each provides reliable, eco-friendly solutions to keep your pool at the perfect temperature year-round.

Vita Filters is a preferred and authorized dealer for Pentair, Hayward, and Raypak products. We offer free freight shipping on all orders, ensuring that your Low NOx pool heater arrives quickly and cost-effectively. Choose Vita Filters for quality, savings, and expert advice.