The Best Bathtub Immersion Heater -Reviews & Comparison

If you're looking for the best bathtub immersion heater on the market, you've come to the right place. After researching many different options, we compiled this list of the 10 best bathtub immersion heater. We assessed features, build, functionality, usability, and many more aspects to find the best options.

Knowing what to look for, which types to choose, and a host of other factors go into choosing among the best bathtub immersion heater. There’s good news, though: This guide will explain it all. If you're still here because you need a suitable option, we have a decent selection that should cater to every taste and budget, so read on to find which of the bathtub immersion heater will be the best choice for you.

The reasons why you should trust us

You can trust us because we are not just another review site. We are a team of tech enthusiasts and experts who have spent months researching the best products on the market. We factor this into our overall star rating for each product and our final verdict on whether or not we recommend it.

Our rating metrics include the following:

  • Functionality
  • Build material
  • Durability
  • Compatibility
  • Ease of use
  • Quality
  • Price-to-value ratio
  • Reliability
  • Brand
  • Safety
  • Customer reviews

Best bathtub immersion heater: Our 10 Choices

Comparison of 10 Best bathtub immersion heater
Bestseller No. 1
2000W Immersion Water Heater, with Thermometer Immersion Heater, Heat 5 Gallons of Water in Minutes Bucket Heater, Bathtub Heater, Submersible Water Heater Pool Heater for Above Ground Pool
  • 【Very Wide Use】Take a super comfortable hot bath in cold weather, or use the bucket heater to boil water for a comfortable foot soak that will keep you warm all night. bathtub water heaters are suitable for rapid heating in different small capacity containers such as buckets, bathtubs, small pools, washbasins, mini inflatable swimming pools.
  • 【2000W Fast Heating】2000W high power electric immersion water heater heats up faster. When you're out camping or traveling, the high-power travel bucket water heater can quickly heat up 5 gallons of water in minutes, saving you time and power consumption.
  • 【2-Year Warranty Service】Please read the instructions and precautions carefully before using the 2000W immersion water heater. If you have received a defective Immersion heater or have other problems, please contact us immediately. We will send you a new immersion water heater immediately. wish you happiness. (Included in the package: 1x immersion water heater, 1x thermometer to prevent scalding and electric shock, 1x wire brush for cleaning the heater)
  • 【Humanized Design】Immersion heater adopts a stainless steel protective shell, with a solid structure, high bending strength, and very safe. Below the protective hole, the heat is released faster. The bottom drainage design adopts high-temperature and wear-resistant material to drain to prevent accidental injury.
  • 【Portable Use】 The design of the submersible water heater is simple. Small size, easy to carry when you travel, (How to use: Please make sure the immersion heater is fully immersed in water, and then connect the 125v/110v power supply. Equipped with a digital LCD thermometer, after heating for a period of time, put the probe into the water to test the water temperature.)
SaleBestseller No. 2
HASTER Portable Pool Immersion water Heater for Inflatable Pool Bathtub,Bucket Heater with 304 SS Guard,Electric Submersible Water Heater with LCD Thermometer,Heat 5 Gallon Water in Minutes In&Out

  • [Warnings]: Do not heat while using water . The protection plug of leakage is not a power switch.Make sure the water level is enough before use. Read the instructions carefully before using .Don’t put your hand into the liquid when the electric water heater is plugged in.When the liquid is hot, unplug the immersion heater element then take out from the container.Do not plug two heaters on the same outlet .


  • ❀[Safety protection] This UL Certified immersed electric water heater with 304 stainless steel cover guard. Heating in water for a long time will not cause rust, and also protect the heating from direct contact with people, effectively preventing burns. It comes with the digital LCD thermometer whcih can show the temperature easily and can enjoy with the comfortable warm water .Let us enjoy swimming with this portable pool heater


  • ♥ [Easy to use] Just put the full submersible water heater bucket heater 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 outdoor swimming pool please kindly check the pool size if any question please feel free to contact us
  • ♛[Portable and versatile]: You can use the portable bucket water heater anywhere. It supports to use in containers of different sizes, such as buckets, basins, bathtubs, mini inflatable portable swimming pools, etc. Please note if using in outdoor Inflatable swimming pool one should not be enough .This is the first choice for home and outdoor work.This immersion heater is handy and super lightweight, making it pool warmer any grounded wall outlet.


  • ☀[Heat water faster]: 1500W high-power immersion water heater can make 5 gallons of water warm in a few minutes. In the cold winter, you no longer need to wait for a long time for warm water. When you get an immersion water heater, you can enjoy hot water anytime and anywhere in just a few minutes even for outdoor camping with this portable immersion heater for camping .

Bestseller No. 3
Immersion Water Heater Bucket Heater 1500W Portable Water Heater for Bathtub with Stainless Steel Guard and Digital LCD Thermometer (Not Suitable for Pool Heating)
  • [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.
  • [Precautions]1.Do not touch water during use to prevent electric shock! 2. The water heater must be completely immersed in water before power on. 3. The power must be disconnected before taking out the water heater. 4. Do not use it continuously for more than 3 hours! 5.Please do not plug the two heaters into the same outlet to avoid fire hazards.
  • [Wide application] Portable water heater can be used in bathtubs, wooden barrels, washbasins, washing in winter, camping, traveling, etc.
  • [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 bottled water or bathtubs.
  • [Safe and Reliable] The water heater has a switch, which can cut off the power quickly and effectively avoid fire. Note: Do not touch water during use to prevent electric shock! The probe of the thermometer needs to be placed on the top of the water instead of the bottom, so that the temperature can be displayed normally.
SaleBestseller No. 4
GESAIL 1500W Electric Immersion Heater, Bucket Water Heater with 304 Stainless-Steel Guard, Submersible Bucket Heater with Thermostat and Auto Shutoff, Heats 5 Gallons Water in Minutes
  • US safety standards, 12-month warranty. Package included: 1 pack bucket heater + Manual.
  • Thermostat and Auto Shut off - The middle stainless steel tube contains a thermal overload safety switch, when water reaches a certain temperature(about 180-194 degrees F), immersion heater for water can automatically cycle on and off to maintain water temperature. It will not overheating and save power.Dry burning will auto shut off power to avoid catching fire.
  • Simple Operation - Immerse in water at proper level. Plug into any grounded wall outlet. Check power indicator light in plug to make sure the water bucket heater is on. then the portable water heater starts working. Warning: the cord and handle can't be submerged in water.
  • 304 Stainless-steel Guard - The heavy duty 304 stainless-steel guard on the electric bucket heater protects the heating element from directly contacting persons or animals. The holes on the guard help release heat into the water faster.
  • High Power: 1500W, 120V (MUST USE 15A OUTLET, THE HEATER IS 12.5A CURRENT)travel immersion water heater, High power for quickly heating, heats 5 gallons of water in few minutes, portable immersion heater will heat water continuously over 180 degrees F and towards boiling(It can't boil water).greatly saving your time. Note:people can't be in the water while the heater is working.
SaleBestseller No. 5
JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater with Digital LCD Thermometer, Stainless Steel Guard Submersible Heater, Rapid Heating in Minutes
  • 【Warning Tips】The heater must be completely immersed in water during working! Please take out the heater before touching the water! Please do not use it continuously for more than 3 hours! Please do not plug the two water heaters into the same socket to avoid fire.
  • 【Safety & Practicality】The pool heater with stainless steel protective guard can effectively prevent the heating element from directly contacting the human body, which is more safer. Heat dissipates to the water faster by flowing through the holes in the guard. It can boil 5 gallons of water in a few minutes. Please use it strictly according to the instructions! !
  • 【Widely Application】JESTOP Heater is small and portable. You can easy to carry it to heat your farm animals’ water, your tiling water on the job site, car wash bucket, pail of bath water in a tiny home or camper, window washing water and more!
  • 【Easy To Use】Fully submerge the heater in the water and connect it to a 120V power supply. Check power indicator light to make sure immersion water heater is working then it will heat water continuously. JESTOP heater is perfect for any cold weather application.
  • 【Heating Helper】The instant hot water heater is suitable for rapid heats water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc. The Package includes 1 x digital thermometer, 1 x stainless steel cleaning ball, 1x water heater. It is deal gift for your friends and family during winter.
Bestseller No. 6
Memoryee Immersion Water Heater Portable Electric Stainless-Steel Heaters with Guard CoverSubmersible Home Instant Water Heater with and for Travel Camping Hot Bathtub Mini Inflatable Pool
  • Easy to use and safe: Just Immerse in water at proper level. Plug into any grounded wall outlet.Come with a digital LCD thermometer, easy to measure water temperature. Each of our bucket heater has been strictly tested. Your satisfaction is our first priority. If you have any problems after receiving this product, please feel free to contact us, we will try to help you at anytime.
  • Wide Application: The electric immersion heating element can be used in water, especially fit for heating water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc.This immersion heater is handy and super lightweight, making it perfect for travels and road trips.
  • High quality and safety:With ABS outer and anti-rust stainless steel guard to effectively prevent the heating element is in direct contact with the human body and heat dissipates to the water faster by flowing through the holes in the guard, safer to use and minimize accidents. High performance heating element which has been strictly tested and with over 10,000 hours service time, sturdy structure and fine workmanship to ensure the superior quality, durable and reusable.
  • Instant Immersion Water Heater: submersible electric heater runs on a more powerful and energy-saving motor. It will boil 5 gallon of the water in minutes and it will not consume too much power. All you need to do is just put the heater in to the water then connect the 120V power supply, easy to use. Gifts: digital thermometer.
  • Warning: The heater needs to be completely immersed in water in working condition. It takes about 2 hours to heat 25 gallons of water from 0 °F to 104 °F. please do not use it for more than 3 hours continuously! If the capacity of your bathtub or small swimming pool is large and more than 2 water heaters are needed for heating at the same time, please do not plug the two heaters into the same outlet to avoid fire hazards. Please take out the heater before touching the water!
SaleBestseller No. 7
HISVICON Immersion Water Heater Bucket Heater 1500W Portable Water Heater for Bathtub with Stainless Steel Guard and Digital LCD Thermometer (Not Suitable for Swimming Pool)
  • [Precautions]1.Do not touch water during use to prevent electric shock! 2. The water heater must be completely immersed in water before power on. 3. The power must be disconnected before taking out the water heater. 4. Do not use it continuously for more than 3 hours! 5.Please do not plug the two heaters into the same outlet to avoid fire hazards.
  • [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.
  • [Wide application] Portable water heater can be used in bathtubs, wooden barrels, washbasins, washing in winter, camping, traveling, etc.
  • [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.
Bestseller No. 8
Immersion Water Heater for Bathtub,Portable Water Heater to Heat 5 Gallons of Water in Minutes,Pool Heater for Inflatable Pool
  • Fast Heating & Less Waiting: This 1500W high-power immersion water heater can warm up 5 gallons of water in minutes. In cold winters, you no longer have to wait long for warm water. Just submerge the water heater, wait a few minutes and enjoy the hot water. It's a great camping water heater even when backcountry camping
  • Premium & Safe: Water heater electric is covered with a 304 stainless steel protective cover, which can effectively prevent the heating element from directly contacting people or animals and prevent burns. Our submersible water heater has an artificial intelligence temperature control design, when the water temperature reaches 75℃, it will automatically cut off the power
  • Portable & Widely Applicable: You can use your portable water heater anytime, anywhere. It supports the use of containers of different sizes, such as buckets, bathtubs, sinks, inflatable swimming pools for children. It's super lightweight and can be used on any wall with a grounded outlet, making it the first choice for indoor and outdoor work
  • Easy to use & Install: Just submerge the submersible heater completely and plug it in. It comes with a digital LED thermometer that can easily display the temperature. Please note that people and animals cannot be in the water while the water heater for bathtub is heating
  • WARNING: Bucket heater must be completely immersed in water, don't use it continuously for more than 3 hours! Remove water heater immersion before touching the water! Don't plug two water heaters into the same socket to avoid fire
SaleBestseller No. 9
Quick Heating Portable Immersion Water Heater with Stainless Steel Guard, Anti-scalding Bucket Heater, Heat 5 Gallons Water in Minutes Use for Indoor & Outdoor
  • Fast Heating: 1500W high power fast immersion water heater can heat 5 gallons of water in minutes, saving energy and money. The upgraded of the water heater can bring a better experience and enable small children to play freely in a small swimming pool free from cold water.
  • Simple Operation: Immersion water heater is easy to use, just immerse it completely in water and connect it to a 120V power supply. It consists of copper wires that can carry more electricity, which can quickly transfer heat to water. (Note: Unplug heater before removing from the water.)
  • Widely Use: The heater can be used for ground swimming pool, bucket, washbasin, bathtub, construction, animal husbandry, car washing, etc. The immersion heater is light and small, easy to carry when you go camping. As standby water heater of combined boiler.
  • Anti-scalding & Corrosion Resistance: The pool heater with corrosion resistance stainless steel protective guard can effectively prevent the heating element from directly contacting the human body, both sides are fixed with mechanical and AB glue, which has strong sealing and is safer. Strong corrosion resistance, can be used for a long time, for you to solve the trouble of no hot water.
  • Double Safety Protection: According to customer demand, we have upgraded the electric heater with built-in thermostat control and fuse. When the water temperature reaches a certain temperature automatically stop heating and maintain the temperature. The fuse can cut off the power to avoid fire, providing you with double safety protection and enjoy a comfortable soak at home.
SaleBestseller No. 10
CMI Portable Immersion Water Heater Bathtub Inflatable Pool Electric Fully Submersible Instant Water Heaters 1500W (Yellow)
  • 【Warning】:The portable water heater needs to be completely immersed in water, please do not plug the two camping water heater into the same outlet to avoid fire hazards. Please take out the immersion water heater before touching the water! Do not use it for more than 3 hours continuously!
  • 【Easy to Use】:Place portable water heater into water designed to contain boiling water, fill the container with water to full cover the submersible bucket heater, plug portable water heater into a properly grounded 120V AC outlet, make sure the portable immersion heater is on, make the pool warmer in a few minutes!
  • 【Fast Heating】:1500W of power can make 5 gallons of water warm in a few minutes. Before inserting the heater, please make sure that the heater is completely immersed in the water then connect the 120v/110v power supply.
  • 【Widely Used】:Our portable water heater is suitable for portable bathtub, pool heater, pond heater, water trough heater, bucket heater. Especially fit for heating water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc.
  • 【Thermostat and Auto Shut off】:The middle stainless steel tube contains a thermal overload safety switch, when water reaches a certain temperature, immersion heater for water can automatically cycle on and off to maintain water temperature. It will not overheating and save power. Dry burning will auto shut off power to avoid catching fire.

Buying bathtub immersion heater: Things to Consider

When looking for a new bathtub immersion heater, knowing which one will suit you best can be difficult. But if you consider a few things before making your purchase, it's much easier to narrow down your choices and make an informed decision about what's right for you.

There are many things to consider before you buy a bathtub immersion heater. You want to make sure that it's going to work for your needs, that it's affordable and that it's something you can use with ease.

 

Here are some things to keep in mind before buying a new product:

  1. What is the purpose? This may seem like an obvious question, but people often forget about it as they get caught up in the excitement of a new bathtub immersion heater. If you're looking for an item that will best suit your needs, then don't buy a product that does nothing but entertain you.
  2. What are other people saying about it? It's always best to check out reviews online before making any purchases so that you know what other people think about bathtub immersion heater and whether or not they would recommend them. This can help give you an idea if something is worth buying or not before you spend money on a product that won't work out for you at all!
  3. Is it something I'm going to use often? If there's any question about whether or not you'll use something often enough for it to be worth buying, then wait until later when you're sure how much time, effort, and money.

The following are some more things in detail you should consider before you buy:

Features

The first thing to look at is the features of the bathtub immersion heater. You should check out if it has all the features that you need. It is not worth the money if it doesn't have any needed features. So check out all these features before buying bathtub immersion heater.

Features can be divided into two categories: core features and secondary features. Core features are the main characteristics of a product, whereas secondary features are additional or extra characteristics that make a product better than others.

Quality

Quality refers to how well-made the bathtub immersion heater is and how long it will last before breaking down or malfunctioning. To determine this, check out online reviews by other users who have bought the same item as yours and see whether they're satisfied with their purchase or not. If there are many negative reviews about a bathtub immersion heater or brand, then stay away from them because they're probably not worth buying at all!

Cost

Before buying it, you should always consider how much money you will spend on your new best bathtub immersion heater. In addition to this, you should also consider what features the product has and whether they will be beneficial for both you and your pet or not. Sometimes, many bathtub immersion heater may look similar, but they may vary greatly in terms of cost and quality, so choose wisely when buying something new!

The material used to build it

You should also be aware of what materials are used in the production of the bathtub immersion heater, as this will help you to determine whether it’s durable or not. The material used to make the bathtub immersion heater can tell you a lot about its quality and durability. This is particularly important if you’re planning on using the bathtub immersion heater for a long period or if it will be used frequently. If you’re looking for something that lasts, then you need to consider the material it’s made from.

Brand

It is also a good idea to check out the brand of the bathtub immersion heater before making a purchase. Different brands have different quality standards depending on their manufacturing process and overall quality control measures. Best to choose from, brands with good reputations for quality products and excellent customer service.

Warranty and return policy

When buying bathtub immersion heater, ensure you know what kind of warranty or return policy the manufacturer or seller offers. A good warranty will give you peace of mind that if something goes wrong with your purchase, you can get it fixed or replaced without any fuss or hassle. Look for companies with solid customer service who will work with you if there are any problems with your purchase to resolve them as quickly as possible without making things difficult for you. Look for companies that offer a return policy so that if you are unsatisfied with the product, you can send it back and get your money back.

 

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