Best Hot Tubs Swimming Pool Heaters in 2025

Pool heating capacity up to 6,600 gallons, 85 kBtu/hr fresh pool based on 140°F (60°C) temperature difference between incoming heating and heated water

Fully made of high grade anti-corrosion stainless steel 316L, it is ideal for swimming pools, spas and hot tubs with chemical treatment.

This unit comes with a 1 year warranty to cover manufacturer defects.

[Immediate heating] (Do not touch water during use to prevent electric shock!!!)The bathtub heater has a rated power of 1500W, which can quickly heat 5 gallons of water. The outer shell is made of high-quality stainless steel and has a porous design with good thermal conductivity.Note: Our products are not suitable for heating swimming pools, only suitable for heating bucket or bathtubs.

[Safe and reliable] The heater has an automatic power-off function. When the water temperature reaches about 120~160 degrees Fahrenheit, the water heater will automatically stop heating, effectively avoiding fire.Notice: Do not touch water during use to prevent electric shock!The probe of the thermometer needs to be placed at the top of the water instead of the bottom, so that the temperature can be displayed normally.

[Easy operation] Just immerse the heater completely in the water. It is best to lay the heater horizontally at the bottom of the bathtub. Be careful not to touch the water with your hands when working. If the thermometer does not work, please contact customer service for replacement.

Fast Heating: Submersible water heater can heat up to 5 gallons of water in just minutes,this will help you save waiting time.

Protection against scalding: Made with a durable 304 stainless steel protective cover,this prevents direct contact with the heating element and protects you from burns.

Energy conservation: The thermostat design allows the bucket heater to automatically power off when heated to approximately 167 ℉ and reheat when the water temperature cools to 122 ℉, which can help you reduce energy waste.

<p>☀[Heat water faster]: 2000W high-power immersion water heater can make 5 gallons of water warm in a few minutes. While camping can bring this portable bucket heater and can enjooy shower even outside .In the cold winter, you no longer need to wait for a long time for warm water. When you get an above grond pool heater , you can enjoy hot water in just a few minutes.</p>

❀[Safety Protection] This immersed portable hot tub heater with 304 stainless steel cover guard. Heating in water for a long time will not cause rust,effectively preventing burns. Bathtub heater comes with the digital LCD thermometer whcih can show the temperature easily and can enjoy with the comfortable warm water.Be sure the water is enough then plug it .

♥ [Easy to Use] Just put the US Version pool warmer for inflatables into the water and connect it to power supply without much fuss.. Please note that the heater must be completely immersed in water during use. Through water temperature measurement, you can base on temperature. Note: It is recommended that the continuous use of the tap water heater should not exceed 3 hours.If heat the small pool above ground inflatable pool please kindly check the pool size before purchasing.

【1500W, 120V High Power】 Bucket water heater——High power, quickly heats, regular power off, safe and secure! Heating the water to 104 degrees F takes about 30 minutes (Takes longer in winter).

【Portable & Safe】 The heavy duty 304 stainless-steel guard protective cover prevents accidents when heating elements are working, regular power off, won’t worry about forgetting to power off. Electric water heater is smaller to carry, perfect for winter washing, camping, travel, etc.

【Simple Operation】 Make sure the water immersion heater and thermometer is completely submerged in water, connect the power supply, set the heating time, that's all. Can used as chicken water heater, baby bath water heater, bathtub water heater, foot bath heater, mini inflatable swimming pool heater, ect.

☀[Heat water faster]: 1500W high-power immersion water heater can make 5 gallons of water warm in a few minutes. While camping can bring this portable bucket heater and can enjooy shower even outside .In the cold winter, you no longer need to wait for a long time for warm water. When you get an above grond pool heater , you can enjoy hot water in just a few minutes.

❀[Safety Protection] This UL Certified immersed portable hot tub heater with 304 stainless steel cover guard. Heating in water for a long time will not cause rust,effectively preventing burns. Bathtub heater comes with the digital LCD thermometer whcih can show the temperature easily and can enjoy with the comfortable warm water

♥ [Easy to Use] Just put the US Version pool warmer for inflatables into the water and connect it to power supply without much fuss.. Please note that the heater must be completely immersed in water during use. Through water temperature measurement, you can base on temperature. Note: It is recommended that the continuous use of the tap water heater should not exceed 3 hours.If heat the small pool above ground inflatable pool please kindly check the pool size before purchasing.

[Efficient Heating] Immersion Water Heater for bathtub has a rated power of 1500W, High power, Quickly heats, Bucket heater 5 gallon can quickly heat 5 gallons of water in ten minutes(Boil water need more time). If the amount of water is more, Just increase the heating time.

[Safe and Portable] Portable swimming pool heater using one-piece and one-shot casting technology, Better insulation and airtightness. Perfect for winter washing, camping, travel, etc. With rust proof 304 stainless steel guard, suitable for Plastic containers, Inflatable containers, Glass containers, Wooden containers. Notice: Do not touch water during connected the power to prevent electric shock! Please unplug the power or touch the outside of the container to test the water temperature.

[Note] 1. People can't be touch the water while the portable hot tub heater is connected the power. 2. Before powering up please make sure portable instant camping hot water heater is completely submerged in water. 3. Unplug the power before taking out the heater and using hot water. 4. Bathtub heater while in tub must use 15A outlet. 5. More than 2 water heaters are needed for heating at the same time, please do not plug the two bathtub water warmer into one outlet to avoid fire hazards!

High Power: New square immersion water heater has a rated power of 2000W, 120V (Must use Outlet above 15A, The heater is 15A current)High power for quickly heating, heats 5 gallons of water in few minutes

Higher Heating Efficiency: heat from 70°F to 105°F,5 gallons of water usually only takes 30-60 seconds,50 gallons of water usually only takes 30-40 minute,200 gallons of water usually only takes 2-3 hours,This water heater can heat water to boiling

304 Stainless-steel Guard: With ABS outer and 304 anti-rust stainless steel guard,it is rust proof and durable, Effectively to prevent the heating element is in direct contact with the human body,Avoid direct burns, more secure protection,The holes on the guard help release heat into the water faster.

【FAST HEATING】: With 1500W high power can heat 5 gallons of water in a few minutes! You can enjoy the warm water in a very short time! The high-power portable bucket water heater can quickly heat up the water which can help saving time and power consumption.

【HIGH QUALITY MATERIALS】: The immersion water heater with high-quality 304 stainless steel shield can effectively prevent the heating element from direct contact with people or animals, and quickly dissipate heat into the water. There are holes in the protective cover. Sturdy and durable, it can be used many times without any damage.

【HOW TO USE】: Put the barrel heater in the container, fill the container with water, completely cover the protective cover of the submersible tube heater, and then plug it into a properly grounded 120V AC outlet. Check the power light in the plug to make sure the immersion heater is on and will continue to heat the water until it boils.

1. The thermostat is specially designed for hot tubs, and the thermostat is installed in the pipe jacuzzi. When adding a hot water bath, start the water pump and the thermostat will automatically keep warm, so the water temperature bath is kept at 39 degrees Celsius, creating a more comfortable environment for your swimming pool

2. Voltage: 220V Power: 9KW 50 / 60HZ

3. Safe and easy to operate: The entire installation method of the electric heat pump pool heater is not complicated. By automatically tripping the power switch, the product can be controlled easily and quickly with high safety.

Wood Fired Hot Tub Heater - Wood Fired Pool Heater - Large 100,000 BTU

100% Stainless Steel

Great for Pools and Large hot tubs