3 Phase Heat Only

Get dependable heating for commercial pools and spas with 3 Phase Heat Only pool heat pumps engineered for light commercial duty.

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3 Phase Heat Only

These heat-only, air-source pool heat pumps are built for facilities with three-phase power. Licensed contractors, property managers, and light commercial operators choose them to maintain comfortable water temperatures efficiently throughout the season, whether outfitting a new build or replacing an aging heater.

Our featured 142,000 BTU class delivers robust output for many hotel, HOA, and fitness center pools or large spas. Charged with R-410A, these units provide reliable performance and straightforward serviceability. SEER2 ratings do not apply to pool heaters; capacity is measured by BTU output and heat rise under specified conditions.

Designed for 3-phase electrical service, these heat-only units integrate with standard pool hydraulics and controls to maintain setpoint temperatures. Typical applications include commercial pool heating, spa heating, and heat-only replacements where gas is impractical. Professional installation is required for electrical, plumbing, and startup. Pricing ranges from $4,495 to $5,095.

Top Brands for 3 Phase Heat Only

GulfStream is our featured brand for 3-phase, heat-only pool heat pumps, delivering proven performance for light commercial environments.

Frequently Asked Questions

  • What size 3-phase heat-only pool heat pump do I need for a commercial pool?

    Sizing depends on surface area, wind exposure, cover use, desired temperature rise, and operating hours. Many light commercial pools use 142,000 BTU, but a site-specific load calculation is best.

  • Is professional installation required for 3-phase pool heat pumps?

    Yes. A licensed contractor and electrician are required for code-compliant wiring, plumbing, bonding/grounding, proper flow setup, and startup commissioning to protect performance and warranty.

  • What are the electrical requirements for a 3-phase heat-only pool heater?

    Units require a dedicated 3-phase supply, correctly sized breaker and conductors, outdoor disconnect, and bonding/grounding. Voltage, MCA, and MOCP vary by model; confirm the nameplate and submittals.

  • Does a 142,000 BTU unit suit my pool’s volume and desired temperature rise?

    Often suitable for small-to-mid commercial pools or large spas, but selection should reflect temperature rise goals, hours to heat, weather, and cover usage. Consult a contractor for exact sizing.

  • What refrigerant is used and are there regional restrictions?

    These heat pumps use R-410A. Local codes and refrigerant transition rules may apply in some areas; verify requirements before purchase and installation.

  • Can this heat-only unit operate in cooler ambient temperatures and to what minimum?

    Performance decreases as outdoor air cools. Minimum operating temperature and capacity vary by model; review manufacturer performance tables for exact low-ambient capability.

  • What maintenance is recommended for commercial pool heat pumps?

    Keep the evaporator coil clean, maintain clear airflow, ensure proper water chemistry and flow, clean strainers/filters, and schedule annual professional inspection and service.

  • Are there control options or integration with existing pool systems?

    Units include onboard controls and many offer remote call-for-heat/automation terminals, allowing integration with common pool controllers and time clocks. Confirm compatibility before wiring.

  • How quickly will a heat pump raise water temperature?

    Heat pumps add heat steadily for efficient maintenance rather than rapid recovery. Time to setpoint depends on BTU capacity, pool volume, weather, and use of a pool cover.

  • What warranties and support are available?

    Manufacturer limited warranties vary by model and region. Professional installation and product registration may be required; technical support is available for setup and service.

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