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10 Best 12v Water Heaters And Their Reviews For 2022

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Tim Rhodes

Finding the best 12v water heater can be quite a challenge. There’s a lot of different models, a variety of different features and plenty of other factors to consider.

Trust us – we’ve been through the process.

Fortunately, we’ve done the hard work so you don’t have to. We looked at over 37 different water heaters to bring you the top 10 with 12v functionality.



Last update on 2023-12-15 / Affiliate links / Images from Amazon Product Advertising API

10 Best 12v Water Heaters Reviewed

Below is a list of the 10 best 12v water heaters rated and reviewed. For each item, you’ll find a product description, detailed features and a rating.

1. Duoetto MK2 Water Heater

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Duoetto is a global player when it comes to hot water systems, and the company offers a wide and innovative range of gas and electric water heaters for domestic, industrial, and recreational purposes.

The Duoetto MK2 is a dual voltage water heater that comes with a variable and advanced thermostat.

This Australian designed water heater offers selectable temperatures that can go between 30-75ºC on 240v and up to 70ºC on 12v.

The water heater has a 10L water storage capacity and can be floor mounted.

The Duoetto MK2 water heater is compact and easy to install.

It is suitable for homes, motorhomes or campervans, ships, and even horse floats.

Users can enjoy abundant hot water to cook, clean, shower, and wash with this unique product.

The heater has a durable outer case, and the tank inside is made up of SPCC steel and enamel.

Moreover, the device comes with polyurethane insulation, which not only helps save electricity by maintaining temperature but also offers robust heat protection.

The Duoetto MK2 comes with several accessories such as mounting brackets, bolts and washers, self-tapping screws, and a pressure relief valve.

The Duoetto MK2 has state-of-the-art temperature protection in the power supply system that automatically shuts power supply when the internal temperature exceeds 98ºC.

It comes with a multi-functional safety valve alongside energy-saving high-density foam insulation.

It also has run-dry protection and overpressure protection, which makes the heater extraordinarily reliable and safe.

The Duoetto MK2 water heater comes with a guarantee of 24 months.

Pros & Benefits:

  • Any supply of spare parts is free of charge within the warranty period
  • No gas needed to run this device
  • As the heater is electric, it does not require any clearance or venting

Check Price and Reviews on Amazon

2. Bayite 12V Solar Water Heater

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The Bayite BYT-7A014 DC is a 12v solar water heater that is perfect for homes or other circulation pump applications.

It can run directly off a solar panel.

The device comes with a brushless motor and long shelf life.

It is easy to install and great value for money.

The entire piece is made of PVC, while the core is made up of ceramic material.T

he pump can be mounted anywhere, and it can resist a maximum of 145 PSI pressure.

The max flow rate a user can expect with this pump is 2.1 GMP.

The unique aspect of the Bayite solar water heater and circulation pump is that it creates almost no noise like other pumps.

It is genuinely eco-friendly in all respects as it runs on solar energy and also minimizes noise pollution.

It comes with a service life of 30000 hours and up.

This heater can continuously run at 60C.

The tiny pump is ideal for campers that are looking for a hot shower, homes that want more sustainable options for hot water, or mash recirculation in breweries.

The Bayite 12v water heater is listed in Amazon’s Choice, which means the product is highly-rated and well-priced in the market.

Another attractive feature about this product is that it comes with a one year warranty and covers free replacement within warranty in case of any issues.

Pros & Benefits:

  • The heater can be disassembled without tools for cleaning
  • The device comes with brass fittings, O-rings, power connectors, hose clamps, and even Teflon tape
  • This pump can lift water to a place three meters high

Check Price and Reviews on Amazon

3. Fdit Portable Car Electric Kettle

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As the name suggests, the Fdit 12v hot water kettle is ideal for those people who are looking to boil water for beverages and other purposes in a moving car or vehicle.

This premium quality kettle is made up of food-grade 304 stainless steel and plastic material, which makes it safe to drink boiling water from.

304 stainless steel contains high nickel and chromium content making it resistant to corrosion.

The device is easy to clean and has a long shelf life.Overall it has a very sleek and elegant look.

Fdit car electric kettle uses the latest electromagnetic heating technology, which results in rapid heating and energy saving.

With this kettle, you can expect boiling water at 100ºC in about 25 minutes.

One of the best features of this product is that when the water comes to a rolling boil, the kettle automatically turns off, keeping in mind user safety.

The Fdit kettle is designed to be user-friendly and has a light, which indicates when the kettle is working.

The kettle has a 750 ml capacity and fits into most car and cup holders and is designed to be feasible while traveling.

It has a sealed lid made out of high-quality, safe, and non-toxic plastic, which acts as a good sealant and keeps the water warm for long.

For maximum comfort of passengers, the kettle has a push-button, simple-to-open lid that prevents spillage and hot water burns.

The product also comes with a DC12v charger and a user manual.

Pros & Benefits:

  • The kettle comes with an anti-slip grip
  • It also has a heat-resistant handle
  • It is very lightweight, weighing approximately 629g

Check Price and Reviews on Amazon

4. Immersion Water Heater Mini By Hyuduo

Last update on 2023-12-16 / Affiliate links / Images from Amazon Product Advertising API

The immersion water heater mini by Hyuduo is made up of stainless steel and bakelite material.

Bakelite is well-known for electrical non-conductivity and heat resistant properties making the product extremely safe to use.

The device is moderately sized and lightweight, weighing at 2.4 ounces.

With the Immersion water heater by Hyuduo, it’s ideal for heating water or making coffee in a cup or kettle.

It is portable and ergonomically designed to be used at offices or during travel.

It’s a great water heater to have during a camping trip, long drives, picnics, or at dorm rooms.

Also, it takes only around 10 minutes to boil water with this device.

This particular water heater by Hyuduo has a long cord attached, enabling movability and flexibility.

The product can be directly inserted in a lighter socket and features energy-saving properties.

It is dust-proof, affordable, and durable.

The company Hyuduo has an excellent customer service policy, and consumers can always reach out to them in case of any issues.

Pros & Benefits:

  • There is low power consumption
  • The device is compact and easy to store
  • It is corrosion-resistant

Check Price and Reviews on Amazon

5. Eccotemp L5 Portable Outdoor Tankless Water Heater

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Eccotemp is a portable outdoor water heater that answers all your hot water needs, whether you are at the poolside, giving a bath to pets outdoors, cleaning a vehicle, or gardening.

Eccotemp L5 is designed and developed in the US and is a CSA-certified portable tankless water heater.

The heater can be legally sold in the US and Canada.

The heater is best paired with a 12v water pump, allowing users access to hot water even in the remotest of locations.

The heater runs on a standard 20 lb.

Liquid propane tank and comes with electronic ignition.

Eccotemp runs on electronic ignition powered by 2D cell batteries, and hence it’s ideal for users on the move.

The device does not require electricity at all.

It comes with an adjustable water and gas flow, allowing consumers to achieve a temperature of 50-140 degrees Fahrenheit.

Depending on the need, it has an on/off button at the showerhead.

If there is an existing water source, then the device doesn’t require a pump.

However, if the source of water is a well or river, then it requires a pump.

The model also features a safe automatic “shut off” feature, which is activated with the device is on for more than 20 minutes or if it’s at 45 degrees in either the hot or cold direction.

It has a low-pressure activation of 20 PSI and can easily be connected to any garden hose.

The device is also rated at 1.5 gallons per minute (GMP) of hot water output with an adjustable temperature range.

Another convenient feature of this product is that it can be hanged using the mounting bracket, which is placed at the top and back of the unit.

In case a customer wants, it is also available in multi-packs.

All of Eccotemp’s products are designed to be energy-efficient and conserve energy.

The company also offers a robust customer support system and 24/7 live chat as well as a self- help desk in case a customer faces some issue.

Pros & Benefits:

  • Eccotemp L5 water heater is battery operated
  • The heater as adjustable dials for temperature modulation
  • It comes with a garden hose adaptor, shower head, and CSA regulator

Check Price and Reviews on Amazon

6. Gulrear Intelligent Car Kettle

Gulrear 12V Car Kettle Boiler 280ml Portable Heated Travel Water Boiler For Car Double Layer To...
406 Reviews
Gulrear 12V Car Kettle Boiler 280ml Portable Heated Travel Water Boiler For Car Double Layer To...
  • 【Premium Safe Material】 This car kettle boiler is designed with a double-layer structure. water insulated car mug...
  • 【Intelligent Heater System】Car heating travel cup Controlled by the intelligent microcomputer system, this water...
  • 【Efficient Charging Base】Intelligent car electric kettle powered by cigarette lighter charger base, electric car cup...
  • 【Convenient Car Holder】 Coming with clips and car holders, The car electric kettle can be installed in an air...
  • 【Best Accessory】 Whether you are a professional driver, office worker, travel or camping, this 12V car heating mug...

Last update on 2023-12-15 / Affiliate links / Images from Amazon Product Advertising API

The Gulrear intelligent car kettle is powered by a cigarette lighter charger base and is perfect for heating water in cars.

In case you are confused, a cigarette lighter charger is an auxiliary power outlet in automobiles.

The kettle is designed with a double-layered structure and can fit up to 280 ml of liquid.

The inner layer is made up of food-grade silicone boron glass, which is healthy and safe.

Silicon boron glass has a low coefficient of thermal expansion, which means that it will not crack under extreme temperature changes.

Borosilicate glass is also shock resistant.

The kettle is advanced as opposed to its counterparts in the market as it has a folding mounting, and the inner cup consists of pyrex glass.

Pyrex glass showcases a resistance to chemical exposure.

Similarly, the outer layer of the water heater is made up of polycarbonate plastic and has an anti-collision nature.

The heater is well insulated, protecting your hands from scalding or burning.

The device features an intelligent heating system, vacuum blocking heat, and has a microcomputer.

It also has a display screen and easy-to-use buttons for maximum efficiency.

Keeping customer needs in mind, the heater comes with clips and a car holder so that it can be securely fastened.

The kettle can be installed in an air-conditioned environment.

It can be hanged anywhere and, as a result, helps save space.

The heater is most handy for office workers, travelers, and campers.

Users can use this heater to boil water, make tea or coffee, or instant noodles.

Most importantly, the kettle is built out of a crystal heater, which has an energy-saving nature.

The use of crystal heater also minimizes the heat dissipation rate.

Its multi-protection design prevents any issues related to overvoltage, dry heating, and overcurrent.

The device is a complete value for money as apart from the electric kettle cup, it includes a charger base, car holder, eight stent hooks, and a fuse.

Pros & Benefits:

  • It has an adjustable temperature setting
  • There is a built-in fuse for extra safety
  • It’s suitable for all 12v cars

Check Price and Reviews on Amazon

7. Tatoko Cartridge Heater

tatoko Cartridge Heater 12V 100W 8x100mm Electric Hot Rod Stainless Steel Heating Element...
28 Reviews
tatoko Cartridge Heater 12V 100W 8x100mm Electric Hot Rod Stainless Steel Heating Element...
  • Cartridge Heater 12v 100w
  • Tube diameter: 8mm (0.32 Inch)
  • Tube length: 100mm (3.94 Inch)
  • Cartridge heaters is consist of a cylindrical stainless steel tube and thus provide a high corrosion prevention
  • 12v 100W Cartridge Heater widely used for 3D printer

Last update on 2023-12-15 / Affiliate links / Images from Amazon Product Advertising API

The Tatoko Cartridge Heater is a 12v electric hot rod stainless steel heating equipment.

The heater consists of a cylindrical stainless steel tube.

It comes in two sets.

The device prevents corrosion with a tube length of 100mm and doesn’t run on batteries.

The device weighs only 2.08 ounces, making it lightweight.

Tatoko cartridge heater is very versatile and can be used for various purposes.

It is used in the heavy industrial industry, critical care, and medical devices sector to boil water because of the flange.

Cartridge heaters can operate at a temperature of 1400F as well as achieve watt densities of up to 260 watts per square inch.

Pros & Benefits:

  • It does not require batteries
  • Apart from boiling water, it can also be used to mold die and seal bars that are used in packaging equipment
  • It is extremely durable

Check Price and Reviews on Amazon

8. Wagan Stainless Steel Heated Travel Mug

Wagan EL6100 12V Stainless Steel 16 oz Heated Travel Mug with Anti-Spill Lid, 1 Pack
3,128 Reviews
Wagan EL6100 12V Stainless Steel 16 oz Heated Travel Mug with Anti-Spill Lid, 1 Pack
  • The Bpa Free, Stainless Steel, Double Walled Construction Ensures Your Drink Stays Hot And Tastes Just As Good As The...
  • Heats Cold Beverages To About 145 Degree F In Less Than 30 Minutes
  • Maintains Temperature Up To 2 Hours After The Mug Is Unplugged From The Vehicle
  • Heat Resistant Ergonomic Plastic Handle, And Close-Able And Spill Resistant Lid With Gasket

Last update on 2023-12-15 / Affiliate links / Images from Amazon Product Advertising API

The Wagan EL6100 12v stainless steel heated travel mug is specifically designed for people who like hot drinks on the go or need hot water for instant meals such as cereals or noodles.

The makers of the mug Wagan Tech have over 35 years of experience, and most of their products are designed for today’s “mobile professionals.”

Made in the US, the Wagan mug is easy to carry whether a user is in a car, truck, or boat.

This BPA free travel mug is made up of stainless steel.

The cup can hold a drink up to 473 ml.

It is also double layered to ensure that drinks stay hot for longer.

The machine can boil cold water or beverages at 145 degrees Fahrenheit in less than 30 minutes.

The storage capacity of this holder is around 16 ounces, and it has a detachable 12v power cord.

The unique feature of the Wagan stainless steel travel mug is that it can maintain its temperature for up to two hours after the device is unplugged.

In case the device is plugged, your water will stay hot for up to four hours.

It’s built with a heat resistant and ergonomically designed handle to prevent any mishaps.

With an anti-slip base, the mug is capable of staying stable in moving vehicles.

It also fits perfectly in all standard vehicle cup holders.

The heating coil of the mug is present in its base, and it’s built to avoid any residue build-up at the base

Pros & Benefits:

  • It comprises a spill-resistant lid with gasket
  • The mug has a sleek, tapered design to fit in any car holder
  • Drinks taste the same even when stored for two hours

Check Price and Reviews on Amazon

9. Eccotemp L10 Portable Water Heater

Eccotemp L10 Portable Water Heater w/ EccoFlo Diaphragm 12V Pump and Strainer
53 Reviews
Eccotemp L10 Portable Water Heater w/ EccoFlo Diaphragm 12V Pump and Strainer
  • Includes 3.5' hose and CSA regulator for use with standard 20lb grill propane tank
  • Battery igniter means no electricity needed
  • 2.9 GPM(Gallons per minute), 50 PSI, 12 Volt, 4.4 Amp Pump
  • Liquid Propane Powered
  • 1/2 hose barb x quad 90 degree strainer

Last update on 2023-12-15 / Affiliate links / Images from Amazon Product Advertising API

The Eccotemp L10 Tankless Water Heater enables the supply of hot water in isolated setups.

If you need hot water in a summer cabin, lake home, shed, RV camper, or stable, then the Eccotemp L10 portable water heater has you covered.

Founded in 2004, Eccotemp water heaters can be found throughout North America, Europe, and Australia.

The product comes with a hose and a CSA regulator.

The Eccotemp L10 can produce up to 2.6 gallons of hot water per minute, ranging from 80-165 degrees Fahrenheit.

This heater can also provide water in two different water supplies at the same time.

The device runs on a 2 D cell battery, which ignites the flame only when the water is running.

As a result, the Eccotemp L10 ensures power consumption and eliminates any chances of overheating.

The batteries can be easily replaced when required with the help of a lock switch at the bottom of the device.

Naturally, it’s an excellent device for off the grid locations where electricity is sparse.

At the same time, Eccotemp has a robust customer service and assistance in place for any customer support needs.

Since it is liquid propane powered, it does not require any electricity.

The ideal operating range of this device is 25-80 PSI.

The Eccotemp L10 comes with extra NPT fittings so that it can be easily attached to standard fixtures.

The system also works perfectly with modified water systems.

The device is wall-mounted, and it’s a fuss-free process to install it.

Pros & Benefits:

  • It comes with a one year warranty
  • The device is gas-powered
  • It comes with a hose and regulator

Check Price and Reviews on Amazon

Final Thoughts

The joy of having access to hot water when you demand, even in the unlikeliest of situations, feels extremely gratifying.

Today, modern-day technology has progressed significantly, and it is now possible to have hot water at your fingertips at all times with minimum effort.

Whether you are looking for a water heater for your car, outdoor vacation, or farmhouse, it’s essential to invest in the right kind of product that is specifically designed to suit your needs.

I hope our list of ten best-in-class 12v water heaters helps you simplify and make the right decisions.

In case you feel a deserving 12v water heater is missing in the list, please let us know in the comments below.

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