Which is better for a cold climate?

The Pentair UltraTemp. Its automatic defrost and wider operating range let it keep heating in cool weather, while the Hayward HeatPro is rated down to 50 °F.

Is the Pentair worth the savings over the Hayward?

Yes for most buyers. The Pentair is about $1,800 cheaper at the prices above and has a higher COP of 5.5, so it also costs less to run.

Which heats a pool faster?

They are close. The Pentair is rated 143,000 BTU and the Hayward 140,000 BTU, so the Pentair has a slight edge on heat output.

Both use scroll-style compressors and corrosion-resistant cabinets. The Pentair's 100% titanium exchanger is the clearer long-term advantage against chemical corrosion.

Do they need different electrical service?

Yes. The Pentair calls for a 50 A breaker at 230 V; the Hayward allows up to a 70 A breaker. Check your panel before buying either.

Which handles higher water flow?

The Pentair, at up to 120 gal/min versus 75 gal/min for the Hayward. Both need at least 30 gal/min.

Pentair UltraTemp Heat Pump vs Hayward HeatPro Heat Pump

The Pentair UltraTemp is the better buy for most residential pools. It costs $5,199.99 at Pool Cleaning Parts as of November 7, 2026, versus $6,999.00 at Amazon for the Hayward HeatPro. The Pentair delivers slightly more heat (143,000 vs 140,000 BTU) at a much higher COP of 5.5, so it runs cheaper and handles cold weather better. Choose the Hayward only if you need its higher flow ceiling or a 70 A breaker setup.

Today the Pentair UltraTemp Heat Pump costs $1,799.01 less at its best price.

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