Top 8 Bathtub Water Heaters: Discover the Best Heating Solutions for a Relaxing Soak

Steve Donaldson Master HVAC technician
Steve Donaldson
Master HVAC technician at Quality Comfort Home Services

I am Steve Donaldson, a Master HVAC technician with a rich background in addressing heating issues, especially when it comes to various types of water heaters. Leveraging my extensive expertise, I offer insights and advice to help individuals maintain a warm and secure home environment. Reach out to me at steve.donaldson@tedreviews.com for valuable tips from a seasoned professional in the industry.

Steve Donaldson Master HVAC technician
Steve Donaldson
Master HVAC technician at Quality Comfort Home Services

I am Steve Donaldson, a Master HVAC technician with a rich background in addressing heating issues, especially when it comes to various types of water heaters. Leveraging my extensive expertise, I offer insights and advice to help individuals maintain a warm and secure home environment. Reach out to me at steve.donaldson@tedreviews.com for valuable tips from a seasoned professional in the industry.

Welcome to my post on the top 8 bathtub water heaters! If you love nothing more than a relaxing soak in the tub, then you're in the right place. In this roundup, I'll be introducing you to some of the best heating solutions available for your bathtub. From portable immersion heaters to scald-free bucket heaters, we've got you covered. So sit back, relax, and let's dive into the world of bathtub water heaters!

1
Fast-Heating Immersion Water Heater
✯ Highly recommended! ✯
BUY NOW Amazon.com
8.7
2
Portable Electric Water Heater - 1000W
Portable Convenience
BUY NOW Amazon.com
7.5
3
GRILLME Immersion Water Heater, Portable & Waterproof
8
5
Electric Immersion Water Heater: Portable and Powerful
In summary, it's a handy option with concerns
BUY NOW Amazon.com
7.8
1

Fast-Heating Immersion Water Heater

$35.99
$29.99
 in stock
Amazon.com
as of March 13, 2025 7:10 pm
8.7
Highly recommended!
The Immersion Water Heater is a versatile and efficient product that quickly heats up to 5 gallons of water in minutes, making it perfect for camping or traveling. It features a durable stainless steel guard for safety, an LCD thermometer for easy temperature monitoring, and has received positive reviews from satisfied customers. The only drawbacks are that it may take a couple of days to stabilize the temperature in larger pools and caution is needed when checking the water temperature to avoid accidents.
Efficient and Quick
  • Fast heating capability
  • LCD thermometer for easy temperature monitoring
  • Versatile and can be used for various purposes (e.g., filling buckets, inflatable pools, bathtubs)
  • Durable stainless steel guard for safety
  • Positive reviews from satisfied customers
Drawbacks
  • Takes a couple of days to stabilize the temperature in a larger pool
  • Need to be cautious when checking the water temperature to avoid accidents

This Immersion Water Heater is a powerful and efficient solution for heating water quickly. With a rating of 2000W and operating at 110-125V AC, it has excellent thermal conductivity and can heat up to 5 gallons of water in just minutes. Perfect for camping or traveling, this portable heater is also equipped with an LCD thermometer, allowing you to easily monitor the temperature. It's versatile too – great for filling outdoor buckets for bathing pets, providing hot water in a bathtub during a temporary loss of heat, or even heating up an above ground pool. With positive reviews and satisfied customers, this Immersion Water Heater is definitely a reliable choice.

Quick and efficient heating
  • 2000W Super Fast Heating
  • Porous design with good thermal conductivity
  • Operates at 110-125V AC
  • Can quickly heat up to 5 gallons of water in minutes
  • Saves time and energy
  • Suitable for camping or traveling purposes
$29.99
$35.99
in stock
as of March 13, 2025 7:10 pm
Amazon.com
2

Portable Electric Water Heater – 1000W

 out of stock
Amazon.com
8.4
Portable Convenience
The portable water heater is a versatile and convenient option for camping, inflatable pools, and bathtubs. It heats up quickly and has a portable design, although it may take longer to heat larger volumes of water and is not suitable for heating full bathtubs.
Efficient and Convenient
  • Portable design
  • Quick heating capability
  • Versatile for various uses (camping, inflatable pools, bathtubs)
Weaknesses
  • Not suitable for heating full bathtubs
  • Takes a long time to heat up larger volumes of water

This Water Heater – Portable Heater is the perfect solution for heating liquids on the go. Its compact and simple design makes it widely distributed and easy to use. With its powerful 1000W, it can heat up a 22 Oz water in just a few seconds. It's great for heating small basins of water, like sinks, and can even be used for bathtubs, although it may take a little longer to reach the desired temperature. Overall, this is a great product for camping, inflatables, and even washing dishes.

Efficient and Convenient Hot Water
3

GRILLME Immersion Water Heater, Portable & Waterproof

$89.89  in stock
Amazon.com
as of March 13, 2025 7:10 pm
8
Overall, excellent
The GRILLME 240V 3000W Immersion Bathtub And Swimming Pool Water Heater is a fully submersible and portable electric heater that provides efficient heating for bathtubs and swimming pools. With its 240V power and 100% waterproof design, it offers safe and reliable operation. However, it is important to note that it requires a special outlet that may not be available in most US homes.
Convenient and Versatile
  • Provides a full 3kW of heating power when plugged into a correct 240V outlet
  • Suitable for outdoor use with a UL labeled 14AWG SJTW cord
  • Stainless steel tube is correctly grounded
  • Can be used to warm up water in a smaller tank
  • Can raise the temperature of the water enough for enjoyable use
My Weaknesses
  • Requires a special outlet that most US homes do not have
  • Standard 110V outlet only provides half the power

The GRILLME 240V 3000W Immersion Bathtub And Swimming Pool Water Heater is a fully submersible portable electric heater that is perfect for heating up your bathtub or swimming pool water. With its powerful 3000W heating capacity, it can increase the water temperature of a 30-gallon bathtub by 50 degrees Fahrenheit within 30 minutes. The heater is designed to be used with a NEMA 6-15P 15A outlet, and it comes with a 13.5-inch long stainless steel tube and a 118-inch power cord. It is 100% waterproof and suitable for outdoor use. Please note that it does not come with a GFCI and is not UL listed, so make sure to use it with caution and take appropriate safety measures.

Convenient and Versatile Features
  • 240V 3000W power for efficient heating
  • Fully submersible for use in bathtubs and swimming pools
  • Portable design for easy transportation
  • NEMA 6-15P plug for convenient power connection
  • 100% waterproof for safe and reliable operation
4

Soundfair Immersion Water Heater – U.S. Version

 in stock
Amazon.com
7.8
Great for smaller volumes!
The Soundfair Immersion Water Heater is a durable and reliable option for heating up to 5 gallons of water in a bucket or bathtub. With its safety features and energy-saving design, it is a convenient tool for all your water heating needs. However, it may not be suitable for heating larger bodies of water and takes a couple of hours to heat a full tub.
Benefits
  • Durable and long-lasting – According to reviews, this immersion water heater has a longer lifespan compared to other brands, lasting well over a year with regular use
  • Safety features – The heater is equipped with a thermostat that automatically turns off when not submerged in water, preventing any accidents
  • Versatile and convenient – While it may not be suitable for heating larger areas like a pool, it is perfect for heating up to 5 gallons of water in a bucket or bathtub, making it a handy tool for various water heating needs
Inefficient
  • Not suitable for heating large bodies of water, such as pools
  • Takes a couple of hours to heat a full tub

The Soundfair Immersion Water Heater is a heavy-duty submersible bucket water heater that is perfect for heating up to 5 gallons of water in minutes. With its powerful 1500W heating efficiency, you can quickly feel the warmth of hot water even in the cold winter. This environmentally friendly heater helps you save time and electricity. It's well-made and durable, as mentioned by satisfied customers in their reviews. It's a versatile product that is ideal for filling up a bathtub or heating water in a bucket.

Efficient and Easy-to-Use Features!
  • Powerful 1500W heating capability
  • Fast heating for up to 5 gallons of water
  • Energy-saving and eco-friendly
  • Heavy-duty submersible design with metal guard cover
5

Electric Immersion Water Heater: Portable and Powerful

$38.88
$32.66
 in stock
Amazon.com
as of March 13, 2025 7:10 pm
7.8
In summary, it's a handy option with concerns
Overall, the 1500W Electric Immersion Water Heater for Bucket is a convenient and portable option for quickly heating water. However, it is important to note that there were some issues with the breaker tripping and rust particles being released into the water.
Efficient and Convenient
Drawbacks
  • Tripped breaker on outlet after a few days of use
  • Heater rusted and dropped rust particles into the water

Introducing the 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)! This powerful immersion water heater is perfect for quickly heating up to 5 gallons of water in your bucket or bathtub. With its efficient 1500W power, it can heat water rapidly, providing you with hot water whenever you need it. The timed power outage feature ensures safe and convenient operation. Plus, it comes with a 304 stainless-steel guard for added durability. You'll also receive a bonus digital thermometer to easily monitor the water temperature. Stay comfortable and enjoy the convenience of hot water with this reliable immersion water heater!

Convenient Hot Water Anywhere
  • 1500W rated power
  • Quick heating capability
  • Timed power outage function
  • 304 Stainless-Steel guard
  • Portable and easy to use
  • Heats 5 gallons of water rapidly
6

Portable 2000W Immersion Water Heater

 in stock
Amazon.com
7.5
The 2000W Immersion Water Heater is a portable and efficient device that quickly heats water for pools, bathtubs, and other water containers. It features a digital LCD thermometer for accurate temperature monitoring and a stainless steel guard for safety. However, there may be potential durability concerns and compatibility issues with certain outlets.
Convenient and Efficient
  • Efficient at heating water
  • Able to heat up an entire bathtub
  • Can heat a 5-gallon bucket of water in about 5 minutes
Drawbacks
  • Potential durability concerns
  • May not be compatible with certain outlets

The 2000W Immersion Water Heater is a portable and efficient solution for heating water in your pool or bathtub. With its digital LCD thermometer, you can easily monitor the temperature while the stainless steel guard ensures safety by preventing direct contact. This UL Listed heater comes with a complimentary storage bag for easy storage after use, making it a convenient and dependable choice for all your water heating needs.

Convenient Hot Water Anywhere
  • 2000W power for quick heating
  • Portable and easy to use
  • Digital LCD thermometer for accurate temperature monitoring
  • Stainless steel guard for safety and anti-scalding protection
  • Suitable for pools, bathtubs, and other water containers
  • UL listed for safety and dependability
7

Scald-Free Bucket Heater: 2000W, Fast & Portable

 in stock
Amazon.com
7.3
The 2000W Anti-scalding Bucket Heater is a portable and easy-to-use water heater that heats 5 gallons of water in minutes. It features an LCD thermometer for accurate temperature monitoring and an anti-scalding 304 SS guard for safety. However, it falls short of its advertised power and takes a long time to heat a large volume of water.
Efficient and Safe Heating
  • Fast heating time
  • LCD thermometer for accurate temperature readings
  • Portable and easy to use
  • Anti-scalding feature for safety
Improvement Opportunities
  • Not as powerful as advertised (measured to be 1513W instead of 2000W)
  • Takes a long time to heat a large volume of water (6.5 hours to reach 105F, estimated to eventually reach 130F)

Introducing the 2000W Anti-scalding Bucket Heater, the perfect heating helper for quickly heating water in large containers such as buckets, basins, bathtubs, and mini inflatable swimming pools. With its 2000W power, it heats water faster than a 1500W heater, allowing you to have 5 gallons of hot water in just minutes. The portable electric water heater comes with an LCD thermometer, making it easy to monitor the temperature. Its submersible design and 304 SS guard ensure safety while heating. Whether you're in need of a temporary solution or want a backup water heater, this product is a reliable choice.

Hot Water On-The-Go!
  • 2000W heating power
  • Heats 5 gallons of water in minutes
  • LCD thermometer for temperature monitoring
  • Submersible water heater
  • Anti-scalding 304 SS guard
8

HASTER Portable Pool Immersion Heater

$32.88  in stock
Amazon.com
as of March 13, 2025 7:10 pm
7.3
Verdict: Convenient and efficient
The HASTER Portable Pool Immersion water heater is a fast and convenient solution for heating small amounts of water. With its portable design, safety features, and LCD thermometer, it's perfect for on-the-go heating needs. However, it does not have a thermostat or temperature adjustment and may not be effective for warming larger baptism pools.
Efficient Pool Heating
  • Fast heating: The HASTER Portable Pool Immersion water heater can heat 5 gallons of water in minutes, allowing for quick and convenient use
  • Portability: This device is portable and easy to use, making it perfect for on-the-go heating needs, such as in an inflatable pool or bathtub
  • Safety features: With its 304 SS guard and electric submersible design, this water heater prioritizes safety during use
  • Temperature monitoring: The inclusion of an LCD thermometer allows users to easily monitor and adjust the water temperature as desired
Explore further:  Top 10 Picks for the Best 750 Watt Space Heater
Potential Drawbacks
  • No thermostat or temperature adjustment
  • Not effective for warming larger baptism pool

The HASTER Portable Pool Immersion water Heater is a powerful and efficient device that can heat up to 5 gallons of water in just a few minutes. Whether you're camping and need a quick shower or your water heater is out in your RV, this portable bucket heater will come to the rescue. It has been praised for its fast heating capabilities, with one user even mentioning that if you forget about it, the water can almost boil! It's also been successfully used to heat up inflatable hot tubs, increasing the temperature by 20 degrees in just a couple of hours. With its affordable price and reliable performance, this water heater is a great investment.

Stay warm and cozy!
  • 1500W high-power immersion water heater
  • Portable and easy to use
  • Can heat 5 gallons of water in minutes
  • Comes with a 304 SS guard for safety
  • Electric submersible water heater
  • Includes an LCD thermometer for temperature monitoring
$32.88
in stock
as of March 13, 2025 7:10 pm
Amazon.com

Other Options to Consider

Choosing the Perfect Bathtub Water Heater: A Buyer's Guide

  • Heating Capacity: The first thing to consider is the heating capacity of the water heater. You want to make sure it can provide enough hot water to fill your bathtub comfortably. Check the specifications to see how many gallons per minute it can heat. It's important to choose a water heater that matches your bathtub's capacity
  • Energy Efficiency: Another crucial aspect to consider is the energy efficiency of the water heater. Look for models that have high energy efficiency ratings, as this will not only help save on your electricity bills but also contribute to a greener environment. Look for certifications like Energy Star, which indicates that the product meets strict energy efficiency guidelines
  • Safety Features: Safety should always be a top priority, especially when dealing with water and electricity. Look for water heaters that have built-in safety features such as an automatic shut-off system to prevent any accidents or damages. It's also a good idea to choose a water heater with a reliable thermostat that can maintain a constant and safe water temperature
Steve Donaldson Master HVAC technician
Steve DonaldsonMaster HVAC technician at Quality Comfort Home Services

I am Steve Donaldson, a Master HVAC technician with a rich background in addressing heating issues, especially when it comes to various types of water heaters. Leveraging my extensive expertise, I offer insights and advice to help individuals maintain a warm and secure home environment. Reach out to me at steve.donaldson@tedreviews.com for valuable tips from a seasoned professional in the industry.

More Posts

We will be happy to hear your thoughts

Leave a reply

Tedreviews.com
Logo