best 12 volt tankless hot water heater that will surprise you

Are you tired of running out of hot water during your RV trips? A reliable 12-volt tankless water heater can solve this issue instantly.

The core purpose of a 12-volt tankless water heater is to provide continuous hot water on demand, making it perfect for RV enthusiasts. The Ranein 65,000 BTU RV Tankless Water Heater and GIRARD Tankless RV Water Heater offer efficient heating solutions that ensure you never run out of hot water while on the road.

These models stand out with features like high BTU output, digital controls, and freeze protection. Their efficient performance and compact design simplify installation, enhancing your RV experience.

In our full review, we break down performance, durability, and more to help you choose the right unit for your needs.

best 12 volt tankless hot water heaterbest 12 volt tankless hot water heaterbest 12 volt tankless hot water heater

best 12 volt tankless hot water heater

Ranein 65,000 BTU RV Tankless Water Heater

#1 CHOICE

Ranein 65,000 BTU RV Tankless Water Heater, High Altitude Available, 12V, CSA Certificated, with Multi-function Controller, On Demand Instant Hot Water Heater, Compatible with all RVs

Tired of waiting for hot water during your RV trips? The Ranein 65,000 BTU RV Tankless Water Heater fixes this with its on-demand hot water feature. No more long waits or cold showers; you get instant hot water whenever you need it.

Why It Works

  • Deep fire row design improves heating efficiency, producing up to 3.9 GPM of hot water, ensuring you can enjoy long, relaxing baths without interruption.
  • Staged combustion technology maintains a steady temperature between 95°F and 124°F, preventing overheating and conserving propane during your travels.
  • Built-in safety features, like the automatic gas shut-off and anti-freeze device, enhance reliability, making it ideal for various climates.

Trade-offs

  • Requires separate door purchase for installation, which could be an added expense for some users.
  • Premium price compared to traditional tank heaters, but the long-lasting performance justifies the investment.

Overall, the Ranein 65,000 BTU RV Tankless Water Heater is worth it for frequent users seeking convenience and reliability in their hot water supply. With its advanced features and safety measures, it transforms the RV experience, allowing you to enjoy the comforts of home on the road.

To buy this product, click here.

GIRARD 12V Tankless RV Water Heater

#2 CHOICE

GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet Operation, Onboard Microprocessor, Digital User Control Panel, Freeze Protection, Easy Installation - 2022107534

Tired of inconsistent hot water during your RV trips? The GIRARD Tankless RV Water Heater solves this issue with its advanced onboard microprocessor that ensures a steady temperature, eliminating cold spots and preventing scalding.

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Why It Works

  • Consistent temp keeps water at your desired temperature, improving comfort during showers.
  • Quiet operation allows for peaceful camping experiences without the noise of traditional water heaters.
  • Highly efficient design consumes half the LP gas compared to standard six-gallon tank heaters, saving you money on fuel.
  • Intelligent control with a digital user interface allows for easy temperature adjustments and real-time monitoring.

Trade-offs

  • Professional installation is recommended, which may add to the initial cost but ensures proper setup and functionality.
  • Premium price, but the long-term efficiency and performance justify the investment.

Worth it for frequent users who value reliable hot water and efficiency while traveling in their RV. The GIRARD Tankless RV Water Heater is a game changer for anyone tired of the limitations of traditional water heaters.

To buy this product, click here.

Ranein 2025 GEN II 65,000 BTU RV Water Heater

#3 CHOICE

2025 GEN II Ranein On-Demand 65,000 BTU RV Tankless Water Heater, 12V Powered, High Altitude Ready, CSA Approved, With Multi-Function Controller and Thermostatic Chamber

Tired of running out of hot water during your RV trips? The 2025 GEN II Ranein On-Demand 65,000 BTU RV Tankless Water Heater fixes it with its advanced deep fire row design, delivering up to 3.9 GPM of continuous hot water, even in snowy winter conditions.

Why It Works

  • High heating efficiency ensures you’ll have endless hot water for showers, dishes, and more, solving the problem of inconsistent hot water supply.
  • Thermostatic chamber maintains a stable water temperature, eliminating sudden fluctuations that can ruin your shower experience.
  • Easy replacement design allows for quick installation in most RVs, making it a hassle-free upgrade.
  • Safety features like automatic gas shut-off and an anti-freeze system provide peace of mind while traveling.

Trade-offs

  • Premium price compared to traditional water heaters, but the longevity and efficiency justify the investment.
  • Requires compatible door kits for installation, which are sold separately.

Overall, the 2025 GEN II Ranein On-Demand RV Tankless Water Heater is worth it for frequent users who value reliable hot water and safety features while on the road. Its performance in high-altitude and cold climates makes it an essential addition for serious RV enthusiasts.

To buy this product, click here.

RV Tankless Propane Water Heater 55000 BTUs

#4 CHOICE

RV Tankless Water Heater, On Demand Instant Propane Gas RV Hot Water Heater, DC 12V, 15 x 15 inch Door & Front Water Outlet, 55000 BTUs 3.9 GPM, Compatible with All RVs, Camper, CSA Certificated

Tired of running out of hot water during your RV adventures? The RV Tankless Water Heater is here to solve that with its on-demand hot water feature. With a powerful output of 55,000 BTUs, it delivers a steady stream of hot water at 3.9 GPM, ensuring you can shower, wash dishes, and enjoy hot water whenever you need it, without the wait.

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Why It Works

  • Endless hot water means no more cold showers, even with multiple users.
  • High-efficiency heating coils provide consistent water temperature, preventing overheating and ensuring comfort.
  • Advanced safety features like overheat protection and anti-scald technology give you peace of mind while using it.

Trade-offs

  • Premium price compared to traditional tank heaters, but it offers significant savings in propane and energy efficiency.
  • Requires a 12-volt DC power connection and proper ventilation for installation, which may be a challenge for some users.

Overall, the RV Tankless Water Heater is worth it for frequent users who value convenience and reliability. Its ability to provide hot water on demand, combined with safety features and efficiency, makes it a smart investment for any RV enthusiast. Enjoy your travels without the worry of running out of hot water!

To buy this product, click here.

DARTMOOR 65000 BTU Tankless Water Heater

#5 CHOICE

DARTMOOR RV Tankless Water Heater, 65000 BTU with Showerhead Kit Control Panel 15 x 15 in White Door, 12V On Demand Instant Hot Water Heater for RV Camping, Propane Gas

Tired of cold showers while camping? The Dartmoor RV Tankless Water Heater solves this problem with its impressive 65,000 BTU power and on-demand hot water feature. Say goodbye to waiting for the water to heat up; this unit delivers a steady 2.4 gpm flow rate, ensuring you enjoy continuous hot water wherever your adventures take you.

Why It Works

  • Stable Temperature prevents overheating and ensures a consistent experience at temperatures up to 124°F, making it perfect for varying altitudes.
  • Safety Features like dry heating and overpressure protection provide peace of mind, ensuring safe operation during your travels.
  • User-Friendly Control Panel allows for easy adjustments and troubleshooting, making it accessible for all users.

Trade-offs

  • Premium Price compared to traditional heaters, but the longevity and reliability make it a worthwhile investment.

This tankless water heater is designed for RV enthusiasts who value convenience and reliability. It offers a seamless hot water experience, perfect for frequent users who want to enjoy warm showers without the hassle of traditional systems. If you’re serious about your camping comfort, the Dartmoor RV Tankless Water Heater is worth it.

To buy this product, click here.

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Faq about best 12 volt tankless hot water heater:

1:What is a 12 volt tankless hot water heater?

A 12 volt tankless hot water heater heats water on demand using a 12-volt power source, eliminating the need for a storage tank.

2:What are the benefits of a 12 volt tankless hot water heater?

Benefits include energy efficiency, continuous hot water supply, space-saving design, and lower operational costs compared to traditional heaters.

3:How does a 12 volt tankless hot water heater work?

It activates when a hot water tap is turned on, using electric coils to heat water as it flows through the unit.

4:Can a 12 volt tankless hot water heater be used in an RV?

Yes, it is ideal for RVs due to its compact size and efficient power usage.

5:What size 12 volt tankless hot water heater do I need?

Choose a size based on your hot water demands, considering flow rate and temperature rise needed for your specific application.

6:Are 12 volt tankless hot water heaters energy-efficient?

Yes, they are designed to use less energy than traditional heaters, making them cost-effective for long-term use.

7:Can I install a 12 volt tankless hot water heater myself?

Installation can be DIY-friendly, but professional installation is recommended for optimal performance and safety.

8:What maintenance does a 12 volt tankless hot water heater require?

Regular descaling and checking for leaks are necessary to maintain efficiency and extend the unit’s lifespan.

Conclusion

Ranein’s 65,000 BTU RV Tankless Water Heater exemplifies efficiency and power, delivering rapid hot water on demand, ideal for adventurous travelers. Its robust design ensures durability, making it a quintessential choice for those seeking reliability and performance during their journeys.

Conversely, the GIRARD 12V Tankless RV Water Heater stands out for its compact elegance and innovative technology. It offers seamless integration into RV systems, providing consistent hot water while optimizing energy consumption, thus appealing to eco-conscious consumers. Both products reflect the pinnacle of modern engineering in portable hot water solutions.