It is always difficult when it comes to decide and making final call choosing heater for bathtub, hence we are here today so be sure to check the product reviews that will solve your confusion and save time. Reviews are a great way to find out if the product is right for you and whether it has any design flaws. If there are multiple bad reviews, you may want to look at other products. Negative reviews can tell you a lot about the product, including things you may not have thought to consider. They can tell you about any potential issues with the product. They can also tell you about issues with the manufacturer’s customer service. To help you out, we’ve collected reviews of what we think are the heater for bathtub this year. Before you proceed with anything, read through our thoughts on the top heater for bathtub, as well as an overview of what you need to know when considering your buying
This is the ultimate buyers guide heater for bathtub.
A Quick Comparison of Our Favorites
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Immersion Water Heater Bathtub Heater with Real-Time Temp Detection Temp Setting Temp Maintenance...
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High quality
SereneLife Electric Bathtub Bubble Massage Mat - Waterproof Tub Massaging Spa, Full Body Bubbling...
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The Best heater for bathtub
1500W Electric Immersion Water Heater for Bucket, Bathtub Heater with Timed Power Outage, Small Portable Heaters with 304 Stainless-Steel Guard, Heats 5 Gallons Water in Rapid (Built-in Timer)
$38.88
in stock
Amazon.com
as of September 9, 2025 6:29 pm
Features
- Safety & Reliable : The immersion water heater for bathtub made of high quality 304 stainless steel, which is durable and has a long service life. The inner tube of bathtub heater is made of pure copper, which has good heat conductivity and is not easy to deform.The water heater electric included timed automatic power off function is more secure. The product has passed the quality certification, and the safety design is reliable
- Quick Heating : The bucket heater for bathtub has a power of 1500W, which can quickly heat the 5 gallon water to the desired temperature. The heating time is about 5-30 minutes, depending on the water temperature. The bucket water heater has a built-in timer protection function, which can automatically turn off the power when the water temperature you need exceeds the set time to ensure safety
- Porous Design : The outer shell of the portable pool heater is made of high-quality stainless steel, which has a good thermal conductivity and is not easy to rust. The porous design of the inner tube can effectively increase the contact area of the water and the heat, so that the water can be heated more evenly
- Easy to Use : The immersion heater for hot tub is simple to operate. Just plug in the power supply and set the heating time you need. The bathtub heater while in tub has a built-in timer, which can be set to turn off the power after a certain period of time, so that you can use it with peace of mind
- Wide Application : The bath heater for tub is suitable for various occasions, such as home, hotel, spa, etc. It can be used to heat water for bathing, washing clothes, etc. The product is small in size and easy to carry, so it is suitable for outdoor activities such as camping, hiking, etc. If for any reason, the product you have purchased is not suitable for you, please contact us
Immersion Water Heater Bathtub Heater with Real-Time Temp Detection Temp Setting Temp Maintenance and Security Alarm Function for Bucket Basin Bathtub Inflatable Pool 1875W(125V 15A)
out of stock
Amazon.com
as of September 9, 2025 6:29 pm
Features
- Adequate Heating Effect:1875W(125V 15A): Effective heating is vital for our customers, and a higher power rating usually means better performance. However, it's important to note that the US has a lower voltage limit than other countries, with 125V being the maximum voltage for household use. Our portable water heater is set at 1875W(125V 15A) to accommodate the maximum current that a household power strip can handle. Products claiming the power of 2000W are unrealistic in the US market
- Smart Water Heater-Multi-Functional: Compared to other common immersion water heaters, our product comes with a controller and is equipped with three built-in sensors, which enable a security alarm function, real-time temperature detection and setting, and temperature maintenance function. This reduces the risks associated with using this type of product, making it more intelligent and improving the user experience. For specific instructions on usage, please refer to the manual and main image
- Premium Materials: Quality immersion water heaters demand top materials. Our wire (14AWG, 3*2.08mm²) is twice as thick as others, handling 15A current without overheating. The heating tube, also double the thickness, features an 11mm diameter and superior heating wire for durability. Our waterproof sealant prevents electrical leakage and resists high temperatures, ensuring heater safety
- Widely used: First, please note that this product is not designed for heating food-grade water. However, it can be used to heat various containers, such as buckets, basins, bathtubs, and even mini inflatable swimming pools. Additionally, it is lightweight and portable design makes it easy to carry and heat water for your farm animals, wash your car
SereneLife Electric Bathtub Bubble Massage Mat - Waterproof Tub Massaging Spa, Full Body Bubbling Bath Thermal Massager Machine w/Heat with Motorized Air Pump and Aroma Clip for Oil
$123.11 in stock
11 used from $94.73
Free shipping
Amazon.com
as of September 9, 2025 6:29 pm
Features
- FULL BODY MASSAGE EXPERIENCE – Transform your bath into a luxurious spa with the SereneLife Bubble Bath Mat, designed to deliver a soothing bubble massage with adjustable intensity. It's a perfect bathroom spa to relax after a long day.
- WIRELESS BUBBLE CONTROL - The remote control bath mat lets you ON/OFF and switch between gentle or invigorating bubbles, whatever you desire. Add essential oils (not included) in the built-in aroma diffuser for enhanced bathing experience.
- ENJOY A COMFORTABLE BATH – The cushioned surface of this bathtub mat offers full-body support, providing ultimate comfort as you soak. The non-slip suction cups ensure it stays securely in place during use, offering peace of mind and relaxation.
- SAFE, WATERPROOF AND DURABLE – The bath mat is 100% waterproof and designed to last. The non-abrasive material is safe for all bathtubs, and the motorized air pump is easy to install outside the tub. Enjoy a long-lasting and safe bath experience.
- PORTABLE AND AUTO-OFF TIMER – This portable Bath Mat can be used in any bathtub in your home. Add essential oils (not included) in built-in aroma clips for relaxation. It also has an auto timer that switches off after 20 mins for a peaceful bath.
Immersion Water Heater, 2000W Portable Electric Instant Bucket Heater with Digital LCD Thermometer, Stainless Steel Guard Anti-scalding Submersible Water Heater for Bathtub Hot Tub Pool, UL Listed
$17.99 in stock
Amazon.com
as of September 9, 2025 6:29 pm
Features
- 2000W Instant Water Heater - The electric hot water heater has a power of 2000W and a voltage of 110-125V. It will quickly heat 5 gallons of water with high power in a few minutes, and it will take about 30 minutes to heat the water to 104 degrees Fahrenheit (longer in winter). It is suitable for rapid heats water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc.
- 【Easy to Operate】Our submersible portable water heater is easy to operate and comes with a digital LCD thermometer to help you monitor the water temperature. Simply make sure the immersion heater is fully immersed in water and connect the 125v/110v power supply.
- 【Upgrade Design】Our 2000W High Power Immersion Heater features an upgraded design with a stainless steel protective shell for added safety and durability. The bottom drainage design prevents accidental injury and ensures fast heat release.
- 【Used Anywhere】Use our bathtub water heater anywhere for a super comfortable hot bath in cold weather or a relaxing foot soak. Suitable for rapid heating in different small capacity containers such as buckets, bathtubs, small pools, washbasins, and mini inflatable swimming pools above the ground.
- 【Safe Hot Water Heater Set】Package Includes 1x UL certificate immersion water heater, 1x LCD secreen thermometer for water temperature check, 1x stainless steel scourer for cleaning the heater. Please read the instructions and precautions carefully before using the electric immersion water heater.
EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology
$408.80
in stock
8 new from $408.80
1 used from $379.77
1 used from $379.77
Amazon.com
as of September 9, 2025 6:29 pm
Features
- Voltage 240
- Phase Single
- KW 18 kW
- HZ 50/60
- Temperature Control Digital
Whirlpool White Bathtub Hydrotherapy SPA Hot Tub 2 persons LULU with Heater
out of stock
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as of September 9, 2025 6:29 pm
Features
- READY FOR INSTALLATION: Our home spa is ready to be installed, you will only have to connect the hot/cold water and drain hoses already included in the package!
- FAUCETS INCLUDED: The bathtub has high quality stainless steel chrome finish faucets Included!
- HYDROMASSAGE: Enjoy our hydromassage, thanks to the 1.5 HP Water Pump with 6 big jets and 8 small jets, adjustable with the appropriate valve while remaining comfortably lying down and choose the intensity you prefer!
- HEATER INCLUDED: Just Relax in the hottub, no problem! The heater keeps the water at the temperature you need, as long as you need, just set the temperature from the control panel!
- CHROMOTHERAPY: Turn off the lights and enjoy the magic! A hydromassage with chromotherapy in 7 different colors, for a relaxing bath with your partner
222000Btu/Hr Up to 40000 Gallons Swimming Pool Heater for Swimming Pools, SPA Pools, and Bathtubs,Wired To three Phase 40A GFCI,SPA Water Bath Heater Thermostat Swimming Pool Thermostat Heater Pump
out of stock
Amazon.com
as of September 9, 2025 6:29 pm
Features
- 1.220,000 BTU/ hr 480V in coastal climates,the temperature ranged from 71.6 °F-122 °F (22 °C-50 °C)
- Suitable for 40,000 Gallons -300 sqft In ground Pools, 27' Round-18 x 33 Oval Above ground pools ( Long Island NY- Corpus Christi TX) . If you are not sure about your area's suitability or performance rating, please sned us your zipcode and pool size and we will size it for you.
- 3.Designed, Engineered, Manufactured and Serviced by Coasts
- 4.Suitable for ALL Hot Tubs,Above Ground Inground Pool Swimming Pool.
- 5. 54KW,60 HZ American Voltage.Wired To three Phase 40A GFCI,Use With Water Pump.
DECORAPORT Whirlpool Tub HIGH-END 67 x 30 In with Control Panel, Heater, Radio Speaker, Double Waterfall, LED Lights, Soaking Massage Tub (Q351N-L) Freestanding Bathtub with jets
out of stock
Amazon.com
as of September 9, 2025 6:29 pm
Features
- 【Super Design】DECORAPORT 67x30x24 In Whirlpool Tub with Control Panel, Heater, Radio Speaker, Double Waterfall will match any bathroom decor and make your bathroom more elegant and modern. Water capacity up to 240 L. Plenty of room for 1 person fully stretching and relaxing body during bathing. Ergonomics shape design of tub and pillow to support you neck and back perfectly.
- 【Super Functions】MASSAGE FUNCTION: 1.5 P motor with UL certification, 4 pcs big jets, 2 pcs middle jets,3 pcs small jets; AIR BUBBLE FUNCTION: 300w UL certification blower,8 pcs air bubble jets with light. Equipped with thermostat and Upgrade control panel. 16pcs side multi-color LED lights and 1 meter double waterfall inlet.
- 【Super Quality】100% glossy white acrylic body and reinforced with fiberglass. Scratch resistant, extra-smooth and easy to clean. Integral apron for easy alcove installation and pump access. Chrome polished drain,faucet,shower head and top quality PU pillow included.
- 【Super Safety】 Pump can not be started unless enough water inside. UL certified motor and heater.
- 【Super After Sale Service】We fully guarantee your benefit, if item damage or defective on arrival, please contact us to send replacement or refund. 5 Years Manufacturer Warranty.
Immersion Water Heater, 2000W Portable Bucket Water Heater with LCD Thermometer, Stainless Steel Guard Submersible Water Heater, Heat 5 Gallons of Water in Minutes for Bathtub
out of stock
Amazon.com
as of September 9, 2025 6:29 pm
Features
- ☀【2000W High Power Water Heater】Immersion water heater has upgraded the internal heating element, with good thermal conductivity porous design, heating more efficient. Boil 5 gallons of water in a few minutes, saving energy and allowing you to enjoy a cozy bath even on a cold winter's day! If the amount of water is large, just increase the heating time.
- ☀【High Quality】Portable water heater housing is made of 304 stainless steel and fireproof fiber material, which can effectively prevent the internal heating element from direct contact with people or animals, making it safer to use. Water heater electric has a 304 stainless steel housing that is rust resistant, so it can be reused and has a life expectancy of 10,000+ hours.
- ☀【Easy to Use】The water heater is easy to use. Fill the container with water, then immerse the electric water heater completely, connect it to the 120V power supply, and wait for heating. If you are unsure of the heating effect, you can use the included liquid crystal thermometer to test the right water temperature. Note: Do not touch the hot water directly with your hands.
- ☀【Portability & Versatile Applications】Water heater electric lightweight and portable, electric water heaters offer a convenient solution for different uses without the need for bulky equipment. Not only for containers such as buckets, basins, bathtubs, mini inflatable swimming pools, etc. (not applicable to iron containers), but also for a wide range of environmental scenarios.
- ☀【You will get】1* immersion water heater, 1* LCD thermometer, 1* cleaning wire brush, 1* instruction manual. This is a gift for friends and family. Received goods if the goods are damaged or you have any aspect of the question, please do not be angry, timely contact us, we will provide professional and satisfactory services and solutions within 24 hours.
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
out of stock
Amazon.com
as of September 9, 2025 6:29 pm
Features
- ☀[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 .
- ❀[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.
- 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 .
The Video Review of Best heater for bathtub
Conclusion
Our best overall heater for bathtub, the Perception and the reviews helps assist to choose you the product better. We hope our reviews buyer guide of these heater for bathtub will help you pick the perfect heater for bathtub for you and your buying decision making.