The 9 best propane pool heaters of 2025

High-performance, affordable heater with premium features

82% energy efficiency is highest in class

1-1/2 in. Plumbing connection -- ideal for smaller bodies of water, including aboveground pools, spas and inground pools up to 15,000 gallons

Pre-mixed combustion technology for ultra-fast heat up

Easy-to-use digital display/controller

Designed for easy installation on above ground pools, smaller in-ground pools, and spas

Standard 120v 3-prong power cord or can be easily converted to 220v

Simple analog thermostat dial for accurate pool and spa temperature setting

Gas connection is 1/2" NPT and measures 4 5/8" off the ground level

Unit measures 27.5" H x 12" wide X 24" Deep

The Hayward Universal H-Series 150,000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort

A durable cupro nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry

Industry-leading hydraulic design reduces circulation pump run time to provide major energy savings

Front-panel-only access and intuitive control pad provide easy operation, service and maintenance

Low NOx emissions meet air quality standards in all low-NOx areas, ensuring low environmental impact

266,000 BTU propane digital pool and spa heater

Microprocessor-controlled thermostat can be set precisely to your liking , set it and forget it

Cabinet and the internals are non-corrosive and rust resistant

Features PolyTuf powder coating, polymer headers, and an all copper-fin-tube heat exchanger

Also features a stainless steel tube sheet, 2 inch CPVC water connections, burner tray and fire tile

Durable cupro nickel heat exchanger

Industry-leading hydraulic performance with faster speed-to-heat capability

Intuitive and easy-to-operate electronic panel

Exclusive "Totally Managed" cupro nickel heat exchanger water flow

Low NOx emissions—meets clean air quality standards

Extend Your Swim Season: The pool heat pump features a dual-mode heating and cooling system that maintains optimal water temperatures year-round. Precision control ensures heating from 47–104℉ and cooling from 47–83℉, allowing you to enjoy extended swimming sessions through autumn’s crisp chill and spring’s cool mornings.

Rapid Heating & APP Control: Engineered for speed and efficiency, it delivers 35,000 BTU warmth in hours, perfect for large pools, up to 9,000-gallon systems, or chilly climates. Take full control via the app & control panel. Adjust temperatures remotely, track energy use, and program heating schedules to fit your lifestyle.

Inverter Energy Saving: Intelligent heat pump system featuring full DC variable frequency technology delivers 15.8 COP for maximum heating output. Adaptive frequency conversion algorithm dynamically adjusts power in real-time, achieving 70% energy savings over traditional electric heating and 40% higher efficiency than gas systems.

Ultra-Quiet & Auto-Defrost: Variable frequency technology reduces operational noise to just 48 dB, paired with an intelligent defrosting system featuring automatically initiated cycles every 40 minutes that complete the process in just 5 minutes, ensuring uninterrupted winter operation with continuous heating performance.

Easy to Assemble: Our heat pump features 3 versatile connection options designed to integrate with all pools, (1.25" & 1.5" hose adapter, 1.5" adapter conversion kit, 1.5" PVC pipe converter), ensuring hassle-free installation and optimal performance. Enjoy peace of mind with our 3-year warranty. Dive into comfort and reliability.

The Hayward Universal H-Series 250,000 BTU Natural Gas Heater delivers premium heating performance for years of reliable, long-lasting comfort

A durable cupro nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry

Industry-leading hydraulic design reduces circulation pump run time to provide major energy savings

Front-panel-only access and intuitive control pad provide easy operation, service and maintenance

Low NOx emissions meet air quality standards in all low-NOx areas, ensuring low environmental impact

Durable cupro nickel heat exchanger

Industry-leading hydraulic performance with faster speed-to-heat capability

Intuitive and easy-to-operate electronic panel

Exclusive "Totally Managed" cupro nickel heat exchanger water flow

Low NOx emissions—meets clean air quality standards

Built to last with tough rust proof exterior

Premix combustion technology for fast and efficient warm-ups

Built in safety features to ensure system protection

Rotatable, easy-to-use, intuitive operation controls

Certified for outdoor and indoor installation