Top 10 Best pool heater for inground pools in 2026

Main highlights

• •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

Main highlights

• •ABSORBS SUNLIGHT: Solar Sun Ring is composed of two sheets of UV-resistant vinyl that convert solar energy into heat, adding free heat to your pool with only the power of the sun
• •RETAINS HEAT AND WATER CHEMISTRY: This solar blanket cover retains heat at night and reduces evaporation of water and chemicals
• •ALL WEATHER: Water anchors add stability and weight for storms and windy conditions
• •SALT WATER OR CHLORINE: Compatible with automatic pool cleaners and not affected by salt or chlorine systems
• •EAST TO CLEAN: Easy to clean and store; when not in the water, do not store in direct sunlight as the product can burn whatever items are below it; Color: Sunburst-blue; Dimensions (W x H): 60 x 2 inches

Main highlights

• •Absorbs Sunlight: Solar Sun Ring is composed of two sheets of UV-resistant vinyl that convert solar energy into heat, adding free heat to your pool with only the power of the sun
• •Retains Heat and Water Chemistry: This solar blanket cover retains heat at night and reduces evaporation of water and chemicals
• •All Weather: Water anchors add stability and weight for storms and windy conditions
• •Salt Water or Chlorine: Compatible with automatic pool cleaners and not affected by salt or chlorine systems
• •Easy to Clean: Easy to clean and store; when not in the water, do not store in direct sunlight as the product can burn whatever items are below it; Color: Sunburst-blue; Dimensions (W x H): 60 x 2 inches

Main highlights

• •THERMOSTATICALLY CONTROLLED: 2000w pool heater for small swimming pool have one thermostat and the pool heater for above ground pool have the ability to to turn off automatically when the setting temperature was reached to save power
• •RAPID HEATING: 2000w powerful immersion water heater is designed to deliver efficient fast heating for inflatable or above ground pool, electric water heater quickly heats up water to desired temperature, allowing you to enjoy warm water in minutes
• •VERSATILE IMMERSION HEATER: portable hot water heater is easy and convenient to use in various containers, submersible heater perfect for heating water in bathtubs, plastic barrel, wood bucket, basin, small kiddle pool and inflatable swimming pool
• •RELIABLE AND SAFE: UL certified water heater electric designed with standard US plug and 304 stainless steel guard that ensure reliable and protection against rust, pool water heater is safe, reliable, last through repeated use for foot soaker
• •READY TO USE OUT OF BOX: water heater for bathtub can be used out of box with 6.56ft/2m long cord, and electric hot water heater can heat up to 5-20 gallons of water but not suitable for big pool. Notice:pls fully immerse water when heating water

Main highlights

• •Suitable for pools of approximately 650 gallons: The Thermostat'sWith 5.5kW power 220V 240V,1.5” NPT inlet/outlet, this heater can heat a 650-gallon pool to 87°F in 3 hours. Please note that this product requires connection to a water pump to operate, with the circulation pump power rating less than 1 HP
• •Easily Switching Between ℃ and ℉: The heater is equipped with a digital touch screen display for precise control of the heating time and temperature, . 5.5KW electric swimming pool heater monitors the water flow and heating status. When the temperature falls below the preset temperature, the heater will automatically turn on again
• •High temperature protection switch:The hot tub thermostat's 316 stainless steel heater tubes provide faster heat transfer and longer lasting performance, ensuring that your pool stays at a constant temperature all year round by automatically shutting off the power to the heater when the temperature reaches 50°C due to insufficient water flow and clogged water inlets
• •Security Protection: Built-in fuse security protection, including: anti-dry burn, water shortage auto shut-off and temperature control start/stop. Extend the swimming season and significantly reduce energy costs, your comfort and enjoyment while maintaining the pool's constant temperature
• •Requires professional installation:This is a 5.5KW high power unit that is not powered by a plug, but by hardwiring. Please have it installed by a licensed electrician to ensure proper operation. Please read the product manual carefully before installation and follow the manual requirements. The heater should be installed in conjunction with the circulation pump to make your purchase hassle-free

Main highlights

• •[Touchscreen Display]: Compared to traditional temperature knobs, the upgraded touchscreen display on the 11KW pool heater improves visibility and control. The temperature is visually displayed and can be more accurately controlled with ease.
• •[Automatic Circulating Heating]: The swimming pool heaters will cycle on and off based on the preset temperature. When the water temperature reaches or surpasses the preset level, the pool thermostat will automatically shut off. Conversely, if the temperature drops below the preset level, the pool thermostat will automatically turn on again.
• •[Efficient Heating Tube]: The electric pool heater is equipped with 304 stainless steel heating tubes, which provides excellent thermal conductivity. This efficient heat transfer through the heating tubes speeds up heating times and lowers energy costs.
• •[Professional Wiring Method]: Since a hot tubl heater is a high-powered machine, it is designed to be hardwired rather than plugged in. Therefore, it is important to have a licensed electrician handle the installation process. They can ensure your safety and proper wiring to maximize the efficiency and lifespan of your pool heater.
• •[Notice]: 11KW Pool heaters are suitable for pools of around 1000 gallons. In addition, the heating time of a pool heater depends on various factors such as the size of the pool, the desired temperature increase, the power of the pool heaters, and the ambient temperature.

Main highlights

• •ABSORBS SUNLIGHT: Solar Sun Ring is composed of two sheets of UV-resistant vinyl that convert solar energy into heat, adding free heat to your pool with only the power of the sun
• •RETAINS HEAT AND WATER CHEMISTRY: This solar blanket cover retains heat at night and reduces evaporation of water and chemicals
• •EAST TO CLEAN: Easy to clean and store; when not in the water, do not store in direct sunlight as the product can burn whatever items are below it; Color: Sunburst-blue; Dimensions (W x H): 60 x 2 inches
• •SALT WATER OR CHLORINE: Compatible with automatic pool cleaners and not affected by salt or chlorine systems

Main highlights

• •PLEASE NOTICE - NOT PLUG AND USE! Since this product is a high-power 11KW device, it is NOT powered by a plug but by hard wiring. Therefore, please find a licensed electrician to install it, guaranteeing safety and compliance (220V required). Not applicable for salt water.
• •POWERFUL PERFORMANCE: This electric pool heater is designed for inground & above-ground pools up to 1,200 gallons, it requires a minimum flow rate of 15 GPM (Requires a circulation pump greater than 1hp). With 11kw power, 50A 220V (split 2 phase), and 1.5” NPT inlet/outlet, this heater can heat a 1,000-gallon pool to 86°F in 2.5 hours（At an ambient temperature of 72°F）
• •SMART TOUCHSCREEN CONTROL: The SPA heater is equipped with a digital touchscreen display, allows precise control over heating time (1–16 hours) and temperature (60–130℉). Easily switch between ℃ and ℉ and monitor water flow and heating status for seamless operation
• •EFFICIENT & DURABLE HEATING ELEMENT: The hot tub heater uses advanced 316 stainless steel heating tubes which offer faster heat conduction and long-lasting performance, with higher resistance to rust than 304 stainless steel, ensuring your pool stays warm and inviting year-round
• •ADVANCED SAFETY FEATURES: Built with multiple protections, including fuse safety, anti-dry burn, automatic shutdown for water shortage, and temperature-controlled start/stop. Enjoy peace of mind while keeping your pool heated
• •INSTALLATION REQUIRED: Circulation pump (≥1 Hoursepower), 1.5" NPT SCH40 pipes & fittings, 60A breaker, water filter (optional), Wire: 7AWG

Main highlights