Best Portable Hot Water Heater in 2022 (Top 10 & Buying Guide)

Sometimes it might be quite difficult to find the best portable hot water heater. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this portable hot water heater buying guide.

Our 10 Best Picks:

Our Favorite Portable Hot Water Heater Reviews:

Bestseller No. 1
CAMPLUX ENJOY OUTDOOR LIFE 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater, White, (AY132)
  • Compact,Portable Design: The compact portable water heater weights 10 lb, with folding handle keeps it out of the way, allowing for a convenient set-up outdoors
  • Installation Recommended: This propane water heater only takes you 10 minutes to set up. Read the instructions before installation. Always check gas leakage before operation
  • Operation Features: The flow rate is 1.32 GPM, 1.32 gallons of hot water can be output per minute. The maximum temperature raise is 114.8℉(46℃) and the minimum temperature raise is 46.4℉(8℃)for 1.32GPM
  • Wide Applications: The water heater start up with 3.0 PSI lowest water pressure. Hot water powered by 2 size D batteries,it's perfect for off-grid and rural aeras. No cold outdoor shower anymore
  • 6-in-1 Proection: Flame failure device, anti-freezing protection and oxygen depletion safety shut-off protection
SaleBestseller No. 2
Rinnai V65eP Non-Condensing Propane Tankless Water Heater, Outdoor Installation, Up to 6.5 GPM
  • Original Design: Tankless hot water heater only heats when necessary to conserve energy; For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE160eP model
  • Never Run Out of Hot Water with this Compact Propane Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 6.5 GPM (5 fixtures at once)
  • Smart, Durable Design: Enhanced scale detection helps prevent serious, long-term damage to unit; Includes 15-, 5-, and 1-year residential guarantee for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)
  • Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician
  • Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region
Bestseller No. 3
Portable Water Heater Propane Tankless - 6L 1.58GPM RV on demand Hot Gas Outdoor Digital Display Water Heater for Camping ,Boat,Cabins
  • 【On Demand Hot Water】Maximum power output 42,000btu/hour, get instant endless hot water easily wherever you are. No need to preheat before using tankless water heater. As soon as you turn on the tap, the water flows with your desired temperature. Low water pressure start up, just need 2.5 PSI of water pressure. 1.58 gallons per minute of on-demand hot water. Fully adjustable heat and water flow.
  • 【CSA Approved Safety 】RUINOPAR Tankless Water Heater with CSA Approved Regulator, safe as per Canadian and US Standard.Automatically decrease water pressure between 2.5-145PSI. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. High water temperature protection over 167°F. Shut off gas supply automatically under unexpectable flameout.
  • 【Safety Protection】The safety of the propane water heater is also an important thing that everyone will value very much; Our products have more than 6 protection methods; The product has safety protection that measures such as overheating protection, antifreeze protection, flame-out protection, anti-dry protection, high water pressure protection and low water flow protection, which prevent the product from doing harm to users,providing a comfortable and safe bathing conditions, reliable product.
  • 【Lightweight Portable Design】Compact size and lightweight design for easily carry. It can bring a amazing hot shower for you when you are camping , to the beach, etc. Also you can wash your pets with this tankless water heater in outdoor. Using the handle of the gas water heater or the mounting bracket on the back to hang it. It only takes you a few minutes to install it.
  • 【Energy Saving】With automatic ignition and flameout modes, when you turn on the shower nozzle, the tankless water heater automatically ignites, and when you turn off the shower nozzle, the water heater automatically put out the flame; With this unique design, our heater can save 11.5% energy for you and ensure your safety at the same time.
Bestseller No. 4
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
  • CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 10.75 D Inches
  • LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
  • INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
  • FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
  • EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water
SaleBestseller No. 5
Camplux 5L 1.32 GPM Outdoor Portable Propane Gas Tankless Water Heater With 1.2 GPM Water Pump
  • CSA approved portable tankless water heater for US &Canada markets. Lowest water pressure start up just need 3.0 PSI! Also works great with Camplux 12V 1.2 GPM water pump. You don't need buy extra accessories,you can get 2 pcs extension hose and fittings,complete pump package all in one.
  • Wide comfortable water temperature range from 8℃-46℃ (46.4℉-114.8℉), 1.32 gallons per minute of hot water output, you can get instant on-demand hot water easily .
  • Compact and lightweight size tankless water heaterwith folding handle keeps it out of the way, allowing for a convenient set-up outdoors,great for off-grid,road trips,camping trips.
  • Flame failure device, anti-freezing protection,over heating protection,oxygen depletion safety shut-off protection always ensures you wonderful and safety outdoor showers.To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.
  • The tankless propane water heater comes with high efficiency combustion technology to decrease gas consumption and burning noise, structure with 11.5% energy saving technology,you can saving more energy and money
Bestseller No. 6
Camplux 5L Outdoor Portable Water Heater, 1.32 GPM Tankless Propane Gas Water Heater for RV, Camping, Barns, White
  • CSA Safety Standard -CSA safety standard approved portable tankless water heater,flame failure device, anti-freezing protection, over heating protection to ensure the family safety. Automatically decrease water pressure between 3.0-110 PSI. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. The water heater will shut off automatically when high water temperature protection over 176 °F.
  • Lightweight Portable Design-Compact size weights 10 lbs with portable handle for easily carry. Hang it using the mounting bracket on the top/back of the gas water heater. It only takes you a 15 minutes to install the propane water heater.
  • Instant Hot Water- Maximum power output 28,000btu/hour, you can get 1.32 gallons instant endless hot water easily wherever you are. No need to preheat before operating the tankless water heater. As soon as you turn on the tap, the water flows with your desired temperature.
  • 3.0 PSI Water Pressure Startup -Equipped with a magnetic water flow sensor, the tankless water heater can be widely applied for rural areas, RV's and Boats.The tankless propane water heater lights when water pressure between 3.0-110 PSI, low water pressure is perfect for campings and remote cabins.
  • Important Tips -To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.
SaleBestseller No. 7
Tankless Water Heater Propane 1.32 GPM/5L Portable Propane Hot Water Heater Outdoor On Demand with LED Display for Camping, Black
  • 【EASY TO INSTALL & USE】 Started with 2.5 PSI low water pressure, this tankless water heater propane is good for RV camping, outdoor trip and washing pets. No electricity required, ignition of the propane water heater is with 2 pieces D cell batteries(not included). With the LED display, you can easily adjust the temperature to meet your need.
  • 【LIGHTWEIGHT & INSTANT HOT WATER】 Only weighing 9 lbs and energy-saving, this portable propane water heater is perfect companion for your journey. With maximum power output 34,000 BTU/HR, you can get 1.32 gallons endless hot water easily wherever you are. No need to preheat before operating the propane hot water heater. As soon as you turn on the tap, you will get water at the temperature you desire.
  • 【5 SAFETY PROTECTIONS】 Designed with oxygen depletion safety shut-off protection, over-heating protection, anti- freezing protection(a drain plug to discharge residual water), flame failure device and dry combustion protection, the camping propane water heater aims to keep you and your family safe all the time.
  • 【FULLY EQUIPPED】 No need to look around for accessories! This portable tankless water heater comes with a CSA gas regulator, a high pressure shower head with a 5-foot(1.5 meters) stainless steel hose, an US universal gas connector(fitted already), 2 garden hose adapters, wrenches and fitting kits.
  • 【100% SATISFACTION】 This on demand propane water heater is the real deal! We aim to ensure that every customer have a happy and worry-free purchase experience. If you have further query please feel free to contact us.
SaleBestseller No. 8
JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater with Digital LCD Thermometer, Stainless Steel Guard Submersible Heater, Rapid Heating in Minutes
  • 【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.
  • 【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! !
  • 【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.
  • 【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!
  • 【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.
Bestseller No. 9
Marey GA5PORT Portable Propane Gas Tankless Water Heater, Small, White
  • Naturally vented outdoors: you don't need to buy a extra venting
  • Serves to a variety of applications, since washing your car, windows cleaning, wash your horse or your dog and take a hot shower
  • Perfect for campsites, cabins, remote areas or just around the house. BTU/h - 35000 BTU/h. Fuel Type - LPG(liquid propane gas). pipe fittings - 1/2 inch NPT, incoming/outgoing water and gas
  • Provide endless hot water on demand only as needed
  • No electrical connection is required
Bestseller No. 10
Immersion Water Heater Electric Camping Accessories - 300W - 120/240V - Dual Voltage Portable Water Heater Travel Accessories - Immersion Heater for Tea
  • SUPER FAST: With this Water Heater you will have boiling water in minutes. With 300W at 110V, this heating coil will not keep you waiting to have a mug of boiling water. At 220V-240V it becomes incredibly powerful and heats water super fast, so keep watching. 8.KEEP HANDS OFF. Don’t put your hand into the liquid when the element is plugged in a wall outlet
  • SIMPLE TO USE: Just fill your container, put the water cup heater in the liquid, and lastly turn the heater on. Keep watching and keep hands off. Once water is hot enough or boiling, unplug the heater and wait a few seconds before removing it from the water. Please find USER MANUAL under Technical Specification section on the listing and READ it carefully before use.
  • COMPACT AND PORTABLE: Lightweight and incredibly handy for travelers. Powered with a dual voltage system, can be used with 110-120V and 220-240V. Includes European adapter for international travel needs and travel pouch for a comfortable carry and separating from your clothes and other stuff.
  • VERSATILE USE: Perfect water or coffee and tea heater at home, at the office, on a business trip or while you travel. Who travels much they know that more and more hotels have started the practice of removing any coffee maker from the room and making you get dressed and go down to the lobby or restaurant location for your morning coffee. You can have that morning coffee easier. For best results, use with glass or ceramic containers only
  • HIGH QUALITY: Heater coil is made from high-quality stainless steel SUS304. Electric immersion heater has simple design and very compact, making it widely distributed.

Last update on 2022-10-01 / Affiliate links / Images from Amazon Product Advertising API

How to find the best portable hot water heater?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best portable hot water heater for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good portable hot water heater recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the portable hot water heater need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for portable hot water heater to find what you’re looking for:

Brand

In some cases, the brand of portable hot water heater is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given portable hot water heater are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about portable hot water heater are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare portable hot water heater quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best portable hot water heater can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.