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Hayward

Hayward W3HP21405T HeatPro Pool Heat Pump, 140,000 BTU, Energy-Efficient, Titanium Heat Exchanger, 230V, Inground Pool Heater

  • Based on 5 reviews
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Availability: 20 left in stock
Fulfilled by In The Swim Pool Supplies
Arrives Aug 10 – Aug 11
Order within 4 hours and 33 minutes
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Features

  • ENERGY-EFFICIENT HEATPRO HEAT PUMP TECHNOLOGY: The Hayward HeatPro pool water heater pump uses advanced heat pump technology to efficiently capture heat from the air, providing consistent pool heating with lower operating costs than gas heaters
  • POWERFUL 140,000 BTU POOL HEATING PERFORMANCE: Engineered for medium to large in-ground pools, this electric water heater delivers strong heating capacity to extend your swimming season and maintain comfortable water temperatures
  • TITANIUM HEAT EXCHANGER FOR LONG-TERM DURABILITY: This Hayward pool heater is built with a corrosion-resistant titanium heat exchanger for long service life and compatibility with a wide range of pool water conditions, including saltwater pools
  • QUIET OPERATION WITH PRO-GRADE CONSTRUCTION: Designed for residential pool environments, the HeatPro electric pool heater for inground pools operates quietly while maintaining reliable, professional-grade performance
  • 230V ELECTRICAL REQUIREMENT FOR IN-GROUND POOLS: Designed for 230-volt installations, this swimming pool heater is commonly used in residential in-ground pool systems. Ideal for new installations or heater replacements with existing electrical setups

Description

The Hayward W3HP21405T HeatPro Heat Pump Pool Heater is a high-efficiency heating solution designed to keep your in-ground swimming pool warm and comfortable throughout the swimming season. This in-ground pool heat pump is designed to heat pool (water) using air-source pool heat pump technology instead of burning fuel to transfer heat from the surrounding air into your pool water, delivering reliable performance with improved energy efficiency for pool care, making it a strong option among pool heaters for inground pools. With up to 140,000 BTUs of heating capacity, the HeatPro W3HP21405T in ground pool heater is well-suited for medium to large residential pools, helping maintain consistent water temperatures even as outdoor conditions fluctuate, especially for cool weather. This residential pool heater supports water temperature control and helps maintain consistent water temperatures , making it an ideal choice for homeowners, residential pool owners, pool service technicians who want consistent warm pool water and may be looking to replace gas pool heater systems to extend swim time without the higher operating costs associated with traditional gas heaters. The HeatPro water heater for pool features a titanium heat exchanger, offering superior resistance to corrosion and long-term durability. This construction allows compatibility with various pool types, including saltwater systems, while helping ensure dependable operation season after season. Designed for 230-volt electrical systems, this water heater electric unit integrates seamlessly into many existing pool equipment pads and is used with pool pump and pool filter to heat pool water efficiently. Its quiet operation and streamlined design make it a great option for residential backyards. If you’re looking for an energy-efficient, durable, and reliable in-ground pool heating solution , the Hayward W3HP21405T HeatPro pool heat pump heater delivers trusted Hayward quality and long-term value.

Product Dimensions: 33.6 x 30.5 x 44 inches


Item Weight: 250 pounds


Manufacturer: Hayward


Item model number: W3HP21405T


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 10 – Aug 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Quiet and powerful
I’m impressed with this pool heater. It was a relatively easy installation requiring just three connections: the water inlet and outlet, and electrical which has to be wired into the control box but shouldn’t be a big deal to anyone who’s comfortable with wiring. The unit is quiet and seems pretty powerful - it raised my 18,000 gallon pool temp from 69f to 84f within a day (air temp 72), and has no trouble maintaining high temperatures like 90. I’m a happy customer. ... show more
Reviewed in the United States on March 13, 2026 by DEREK FERGUSON
    • Outstanding Pool Heater – Quiet, Powerful, and Efficient Outstanding Pool Heater – Quiet, Powerful, and Efficient
Review Image by PapaKnowsStuff
Review Image by PapaKnowsStuff
I recently installed the **Hayward HeatPro MCHX 140K BTU Heat Pump (W3HP21405T)** and I can honestly say it’s one of the best upgrades I’ve made to my pool equipment. First off, the **build quality is excellent**. The unit feels extremely solid and well engineered, and the **titanium heat exchanger** gives me confidence that it’s going to last for many years even with regular pool chemistry exposure. Performance-wise, this heater is a beast. The **140,000 BTU output** heats my pool much faster than my previous system, and once the pool reaches temperature it does a fantastic job maintaining it. I’ve been able to extend my swimming season significantly without worrying about huge energy costs. One thing that really surprised me is **how quiet this unit runs**. Compared to older pool heaters, the HeatPro is incredibly quiet. You can stand right next to it and still have a normal conversation without raising your voice. Installation was straightforward, especially if you’re already familiar with pool plumbing and electrical. The **digital control panel is simple and intuitive**, making it easy to dial in the exact temperature you want. Another huge advantage is the **energy efficiency**. Heat pumps are far more efficient than traditional gas heaters, and this unit makes it easy to keep the pool comfortable without burning through fuel. **Pros:** * Very quiet operation * Powerful 140K BTU heating capacity * Durable titanium heat exchanger * Energy efficient heat pump design * Simple controls and reliable performance Overall, if you’re looking for a **high-quality, efficient pool heat pump that delivers serious heating power**, the Hayward HeatPro MCHX is an excellent choice. Highly recommended for anyone wanting to extend their pool season and enjoy warm water without sky-high energy bills. ... show more
Reviewed in the United States on March 12, 2026 Reviewed in the United States on March 12, 2026 by PapaKnowsStuff

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