Hayward | W3HP21405T | HeatPro In Ground Heat Pump, Square Platform 140,000 BTUs

The Hayward W3HP21405T HeatPro In-Ground Pool Heat Pump is a high-capacity, energy-efficient heating solution designed to extend swim season and deliver consistent water temperature control for residential pools. Featuring Hayward’s industry-first Microchannel Heat Exchanger technology, this heat pump provides faster heat transfer, improved durability, and long-term efficiency compared to traditional tube-and-fin designs. With a powerful 140,000 BTU heating capacity and a compact square platform footprint, the HeatPro is engineered for reliable performance, quieter operation, and easier installation in modern pool environments.

Key Features
• 140,000 BTU heating capacity provides rapid and efficient pool heating for medium to large in-ground residential pools
• Industry-first Microchannel Heat Exchanger technology delivers improved heat transfer, reduced refrigerant volume, and enhanced corrosion resistance
• Square platform design optimizes space on the equipment pad while allowing efficient upward airflow
• Designed for 230V single-phase electrical operation with optimized power consumption
• Titanium heat exchanger offers superior resistance to harsh water chemistry and saltwater environments
• Advanced defrost algorithm improves low-ambient heating performance to extend swim season in cooler climates
• Quiet scroll compressor technology ensures reliable operation with reduced noise levels
• Digital control interface supports precise temperature adjustments and clear system diagnostics
• Compatible with Hayward Omni automation systems for remote temperature control and scheduling
• Built for outdoor installation with a UV-resistant cabinet designed to withstand long-term environmental exposure

Product Overview
The Hayward HeatPro W3HP21405T Heat Pump delivers powerful, efficient pool heating using advanced Microchannel Heat Exchanger technology that sets a new standard for performance and longevity. By reducing internal brazed joints and refrigerant volume, this design improves reliability while maintaining high thermal efficiency across a wide range of operating conditions. The 140,000 BTU output allows the HeatPro to quickly raise and maintain water temperatures, making it ideal for homeowners looking to maximize pool usage throughout the year.

Engineered for ease of installation and long-term serviceability, the HeatPro features a compact square footprint, top-discharge airflow, and durable construction suited for demanding outdoor environments. Its titanium heat exchanger ensures compatibility with saltwater pools, while integrated digital controls and automation readiness provide modern convenience and precise temperature management. Designed and built to Hayward’s professional standards, the HeatPro In-Ground Heat Pump offers dependable performance, energy efficiency, and extended swim season comfort for residential pool owners.