Best Heat Pump Chillers for Pool Cooling and Heating
Pool heat pumps that double as chillers offer efficient year‑round control of water temperature, extending swim seasons while keeping energy use in check. This guide reviews five top models suited for both above‑ground and in‑ground pools, highlighting cooling and heating capabilities, efficiency, and smart control features to help American homeowners choose the right system.
The following table provides a quick glance at the selected products, including brand, model, and primary strengths for reference.
| Product | Brand | Primary Strengths | Capacity | Key Feature |
|---|---|---|---|---|
| Raypak Crosswind 30i | Raypak | Whisper quiet, inverter technology | 28,000 BTU | WiFi capable, heat and chill |
| FibroPool FH270 | FibroPool | High efficiency, all electric | 70,000 BTU | Green operation, titanium heat exchangers |
| GRAT Inverter Heat Pump | GRAT | Full inverter energy saving | 78,000 BTU | App control, heating & cooling |
| FibroPool FH135 | FibroPool | Compact yet efficient | 35,000 BTU | All electric, titanium exchangers |
| DR. INFRARED DR-900HP | DR. INFRARED HEATER | High capacity inverter | 90,000 BTU | Full DC inverter, WiFi control |
Raypak Crosswind 30i 28,000 BTU Heat/Cool Electric Pool Heat Pump

The Raypak Crosswind 30i combines heating and cooling in a compact electric heat pump designed for both above‑ground and in‑ground pools and spas. It features inverter technology for efficient performance and a quiet operation profile, making it suitable for residential settings. A clear LCD display and digital controls simplify temperature management while offering WiFi compatibility for remote monitoring and scheduling.
Rated for 28,000 BTU, this unit is ideal for mid‑size pools or as a supplemental heater/chiller for larger installations. Its whisper‑quiet operation helps minimize noise concerns around backyard spaces, and the digital interface provides straightforward temperature adjustments and system status.
FibroPool FH270 70,000 BTU Heat Pump

The FH270 from FibroPool delivers high‑efficiency heating with substantial BTU capacity, suitable for larger residential pools. It emphasizes energy efficiency through high‑pressure differential compressors and titanium heat exchangers, helping reduce operating costs over time. The unit supports in‑ground pools up to 15,000 gallons and above‑ground pools up to 27‑foot round or 18 by 33 foot oval configurations. While designed for humid climates, FibroPool notes best performance near 50 degrees Fahrenheit and advises alternatives for dry climates.
GRAT Inverter Swimming Pool Heat Pump

This 78,000 BTU inverter heat pump emphasizes rapid heating and cooling for large pools up to 25,000 gallons. It combines precision app control and a control panel for scheduling and remote adjustments. The inverter technology continuously adapts power to meet target temperatures efficiently, contributing to energy savings while maintaining comfortable swimming conditions across seasons.
FibroPool FH135 35,000 BTU Heat Pump

The FH135 provides a compact but efficient option for smaller or mid‑sized pools. It uses clean electricity to move heat from the air into the water, with titanium heat exchangers for durability and energy efficiency. Suitable for in‑ground pools up to 7,500 gallons and above‑ground pools up to 18‑foot round or 12 by 24‑foot oval, this model emphasizes easy maintenance and lower operating costs compared to gas heaters.
DR. INFRARED HEATER DR-900HP Full DC Inverter 90,000 BTU

The DR-900HP stands out with 90,000 BTU capacity and full DC inverter technology, enabling 20%–100% heating capacity as needed. It is designed for both in‑ground and above‑ground pools up to about 28,000 gallons. The system’s inverter design supports smoother operation, reduced energy use, and quieter performance. WiFi control via an app allows programming and monitoring from mobile devices, supporting convenient year‑round pool management.
DR. INFRARED HEATER DR-1400HP 140,000 BTU Heat Pump

The DR-1400HP provides a higher BTU option for very large pools or frequent heating requirements. Like the 900HP variant, it uses full DC inverter technology to adjust output efficiently, with WiFi smart control for remote operation. Suitable for in‑ground and above‑ground installations, its larger capacity supports faster temperature changes and broader seasonal use.
AquaCal Heatwave SuperQuiet SQ145

The AquaCal SQ145 is a dedicated heat pump unit renowned for quiet operation and reliability in heat‑only configurations. While primarily a heater, its compatibility with modern controls and energy‑efficient design makes it a strong option for homeowners prioritizing comfort and lower operating costs in moderate climates.
Bayite DC 12V Solar Circulation Pump

Included here as a complementary option for solar or auxiliary circulation, the Bayite DC pump operates at 12V with low noise and a compact design. It supports basic circulation needs and can contribute to solar‑assisted water heating or system hobbyist setups. It is not a primary heat pump but can be part of a broader pool climate control strategy.
Buying Guide: Key Purchase Considerations
- Pool size and BTU capacity: Match the unit’s BTU output to your pool volume. Larger pools require higher BTU ratings for timely heating and cooling.
- Climate and ambient temperatures: Inverter heat pumps perform better in temperate or humid climates; extremely cold environments may reduce efficiency and require backup heating.
- Heating and cooling capabilities: Some models emphasize heating only, while others offer both heating and cooling. Consider year‑round usage needs.
- Energy efficiency and inverter technology: Full inverter compressors adjust output dynamically, reducing energy consumption and noise compared with fixed‑speed units.
- Controls and connectivity: WiFi/app control allows remote monitoring, scheduling, and diagnostics—handy for off‑site management and smart home integration.
- Compatibility and installation: Verify pool type (in‑ground vs above‑ground), electrical requirements (voltage, amperage), and durability in local climates. Titanium heat exchangers and corrosion resistance are pluses for saltwater pools.
- Maintenance and service: Consider brands with established aftermarket support, readily available replacement parts, and clear maintenance guidelines.
- Noise level: Quiet operation is important for residential settings; inverter units typically offer lower noise compared with traditional heat pumps.
In evaluating options, compare initial installation costs against long‑term energy savings, typical pool usage, and any climate‑related constraints. For households seeking maximum flexibility, models offering both heating and cooling with robust app control provide the most versatile climate management for pool environments.