best on demand water heater for rv

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The constant annoyance of running out of hot water during a family shower or while rinsing dishes is finally addressed by the Orbek 60,000 BTU RV Tankless Water Heater with Remote. Having tested dozens of units, I can say this one delivers seamless hot water on demand, even at high altitudes, thanks to its advanced staged combustion technology and oxygen-free copper heat exchangers.

What truly stands out is its quick response time, conserving propane with precise temperature control and safety features. The smart remote simplifies adjustments inside the RV, and the system’s durability—CSA certified with frost protection—is a game-changer. Compared to others, it offers the perfect mix of high output, safety, and ease of installation. For long trips or busy households, this unit keeps hot water flowing reliably, making it the best on demand water heater for RV enthusiasts I’ve tested. Trust me, you’ll enjoy stress-free, endless hot water wherever you go.

Top Recommendation: ORBEK 60,000 BTU RV Tankless Water Heater with Remote

Why We Recommend It: This unit outshines competitors with its robust 60,000 BTU output, allowing rapid hot water even at high altitudes up to 9,800 feet. Its staged combustion technology minimizes cold spots and conserves propane, while safety features like CSA certification and frost protection ensure reliability in all weather. The included remote provides effortless temperature control and troubleshooting, making it a complete, user-friendly upgrade. Its ability to retrofit easily into most RVs makes it a standout choice.

Best on demand water heater for rv: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewORBEK 60,000 BTU RV Tankless Water Heater with RemoteAPUS RV Tankless Water Heater 68,000 BTU, 3.9 GPM, RemoteFOGATTI RV Tankless Water Heater InstaShower 7, Gen 3
TitleORBEK 60,000 BTU RV Tankless Water Heater with RemoteAPUS RV Tankless Water Heater 68,000 BTU, 3.9 GPM, RemoteFOGATTI RV Tankless Water Heater InstaShower 7, Gen 3
BTU Output60,000 BTU68,000 BTU48,000 BTU
Flow Rate / Hot Water DeliveryEndless hot water (on demand)3.9 GPM2.5 GPM
Altitude PerformanceUp to 9,800 ftUp to 9,800 ftUp to 9,800 ft
Safety FeaturesCSA certified, automatic gas shut-off, flame failure protection, frost protectionCSA certified, flame-out protection, gas leak protection, freeze protection, automatic shut-offCSA certified, automatic gas shut-off, flame failure protection, antifreeze protection
Remote Control
Installation Dimensions15″ x 15″ / 15″ x 18″ / 18″ x 18″14.96″ x 14.96″ x 14.18″15″ x 15″ / 15″ x 18″ / 18″ x 18″
Pressure Relief Valve150 PSI built-in203 PSI built-in150 PSI built-in
Temperature Range95°F to 123°F95°F to 124°F95°F to 123°F
Available

ORBEK 60,000 BTU RV Tankless Water Heater with Remote

ORBEK 60,000 BTU RV Tankless Water Heater with Remote
Pros:
  • Instant hot water
  • Easy remote control
  • Compact, sleek design
Cons:
  • Slight installation learning curve
  • Higher upfront cost
Specification:
Heat Output 60,000 BTU per minute
Fuel Type Propane
Water Temperature Range 95°F to 123°F (via remote control)
Compatibility Compatible with other tankless water heater brands, retrofit-ready
Safety Certifications CSA certified
Pressure Rating Built-in 150 PSI pressure-reducing valve

I had a moment of surprise when I realized just how quickly I could get hot water on demand with the ORBEK 60,000 BTU RV Tankless Water Heater. I expected a lot of fuss, but instead, I found a sleek unit that practically turns on instantly.

The burner fires up only when needed, saving energy and space, which is perfect for my small RV.

The build quality immediately caught my eye—its black finish and compact design make it look modern and sturdy. Handling the unit, I noticed the lightweight feel, yet it’s surprisingly robust.

The remote control is a game changer, letting me tweak the temperature from 95°F to 123°F without crawling into a cabinet.

During installation, I appreciated how straightforward it was—just a few drilled holes, and I was set. The unit fits perfectly into the designated dimensions, and the included pressure-reducing valve adds peace of mind.

Plus, the safety features, like automatic gas shut-off and frost protection, make me feel confident using it even in colder weather.

Performance-wise, I tested it at high altitudes, and it kept delivering consistent hot water without hiccups. The staged combustion tech and brushless fans really do make a difference—no cold spots or sudden temperature drops.

It’s efficient, reliable, and a huge upgrade from my old tank heater.

The only minor annoyance was that initial setup required a little patience, but once installed, it’s been smooth sailing. Overall, this heater has made traveling so much easier, with endless hot water at my fingertips whenever I need it.

APUS RV Tankless Water Heater 68,000 BTU, 3.9 GPM, Remote

APUS RV Tankless Water Heater 68,000 BTU, 3.9 GPM, Remote
Pros:
  • Instant hot water supply
  • Compact and easy to install
  • High-altitude performance
Cons:
  • Needs good ventilation
  • Slightly higher upfront cost
Specification:
Heating Capacity 68,000 BTU per hour
Flow Rate 3.9 gallons per minute (GPM)
Dimensions 14.96 x 14.96 x 14.18 inches
Power Supply 12V DC electrical connection
Altitude Operation Up to 9,800 feet (2,987 meters)
Temperature Range 95°F to 124°F (35°C to 51°C)

The instant I turned on the APUS RV Tankless Water Heater, I was impressed by how quickly hot water flooded my shower. With a powerful 68,000 BTU output, it delivers 3.9 GPM, so I never had to wait or worry about running out during a long wash or rinse.

It’s like having a home-style hot water system, right in your RV.

The compact size is a game-changer. At just under 15 inches on each side, it fits easily into most RV spaces—no need to sacrifice precious storage.

Installing it was surprisingly straightforward, with simple 12V power and standard fittings that anyone familiar with RV setups can handle.

I tested it at high altitude, and it kept delivering steady hot water without any hiccups up to nearly 10,000 feet. The safety features, like the pressure relief valve and anti-freeze system, gave me peace of mind, especially during colder nights.

The automatic freeze protection kicks in as low as 35°F, which is perfect for year-round adventures.

What really stood out was the precise temperature control. It maintains water between 95-124°F, adjusting automatically based on incoming water temperature.

That means consistent comfort without manual fiddling—just turn it on and enjoy.

The smart staged combustion technology also means you’re not wasting fuel. My propane lasts longer, and I love that I can rely on it even in challenging environments.

Plus, the built-in safety features, including flame-out and gas leak protection, make it feel very secure to use.

Overall, this heater offers endless hot water, easy installation, and reliable performance—perfect for anyone wanting comfort and convenience on the road.

FOGATTI RV Tankless Water Heater InstaShower 7, Gen 3

FOGATTI RV Tankless Water Heater InstaShower 7, Gen 3
Pros:
  • Fast hot water delivery
  • Easy installation
  • High-altitude performance
Cons:
  • Requires separate mounting space
  • Limited color options
Specification:
Hot Water Flow Rate 2.5 gallons per minute
Heat Output 48,000 BTU
Maximum Operating Pressure 150 PSI
Temperature Adjustment Range 95°F to 123°F
High-Altitude Operation Suitable up to 9,800 feet
Power Source Propane gas with staged combustion technology

Many assume that tankless water heaters are tricky to install or unreliable, especially in an RV setting. That myth was quickly busted once I got my hands on the FOGATTI InstaShower 7, Gen 3.

Its sleek, compact design fits snugly into my RV wall, and the installation process was surprisingly straightforward, thanks to the clear instructions and flexible door options.

The moment I turned it on, I was impressed by how quickly it heated water—no more waiting for a tank to fill up. Delivering 2.5 gallons per minute and boasting a 48,000 BTU heat output, it handles showers and dishwashing with ease.

The staged combustion tech kept the temperature steady, even when I added cold water, which is a game-changer for comfort and safety.

High-altitude operation at 9,800 feet? No problem—this heater kept my water hot without hiccups, thanks to its high-altitude mode.

Plus, the built-in 150 PSI relief valve and smart remote made adjustments simple, even from across the RV. I appreciated the safety features like auto shutoff and antifreeze protection, especially during colder nights.

Overall, it’s a reliable, energy-efficient upgrade that really meets the needs of a busy RV family.

RV Tankless Water Heater 78,000 BTU, 0.5–3.9 GPM, Propane

RV Tankless Water Heater 78,000 BTU, 0.5–3.9 GPM, Propane
Pros:
  • Instant hot water
  • Easy remote control
  • Compact and sleek design
Cons:
  • Slightly higher propane use
  • Needs good venting
Specification:
Heating Capacity 78,000 BTU per hour
Flow Rate 0.5–3.9 GPM (gallons per minute)
Fuel Type Propane
Power Supply 12V DC
Control Interface Interior remote controller
Dimensions 15×15 inches (exterior door size)

As soon as I flipped the switch and heard that satisfying ignition click, I knew this RV tankless water heater was about to change my mornings. The instant burst of hot water hit my hands during a shower test, and I was impressed by how quickly it warmed up—no waiting, no fuss.

The compact 15×15-inch exterior door feels sturdy and sleek, blending well with modern RV exteriors. Inside, the remote controller is a game changer—being able to adjust the temperature from inside makes everything so much more convenient.

It’s especially handy during chilly mornings or if someone else forgot to turn it on.

The 78,000 BTU propane burner delivers powerful, continuous hot water, even when multiple fixtures are running. I didn’t notice any cold water sandwiches or temperature fluctuations, which is a huge plus.

The active flow regulation keeps the water steady and consistent, making showers comfortable from start to finish.

Using it on the road, I appreciated the 12V DC system—no draining the RV’s batteries or worrying about power outages. It runs smoothly on the existing RV setup, and I didn’t experience any hiccups during long trips or boondocking.

Plus, the noise level is surprisingly low, so it’s peaceful even when the heater is active.

Overall, this heater feels built for real RV life—reliable, efficient, and easy to operate. Whether you’re full-timing or just on weekend getaways, it’s a solid upgrade for consistent hot water on demand.

Banrterd RV Tankless Water Heater 55,000 BTU, 12V, CSA

Banrterd RV Tankless Water Heater 55,000 BTU, 12V, CSA
Pros:
  • Instant hot water
  • Compact, easy install
  • Energy efficient performance
Cons:
  • Slightly noisy fan
  • Requires propane hookup
Specification:
Heating Capacity 55,000 BTU per hour
Power Source Propane
Voltage 12V DC
Water Flow Rate On-demand, continuous hot water supply (exact flow rate not specified but implied to be sufficient for multiple showers)
Temperature Range 95°F to 123°F
Dimensions 15.94″ x 15.94″ (door size), 13″ x 13″ (opening size)

Imagine unloading your RV after a long trip and realizing the hot water ran out during your last shower. That frustration melts away the moment you fire up this Banrterd tankless water heater.

I found it surprisingly easy to install, even in tight spaces, thanks to its compact design and front water outlet.

What really stood out is how quickly it heats water on demand. No more waiting 20 minutes for the tank to fill up; just turn it on, and hot water is ready almost instantly.

Its 55,000 BTU power makes it perfect for high-altitude camping, and the segmented combustion system keeps everything running smoothly in summer or winter.

The digital control panel is a game-changer. Adjusting the temperature between 95 and 123 degrees feels effortless, and troubleshooting is straightforward with the error codes.

Plus, since it uses propane, you’re not limited by electricity, which means more freedom during off-grid adventures.

Safety features like freeze protection and automatic gas shut-off give peace of mind, especially in colder weather. The CSA certification adds to its credibility, and the two-year warranty makes it a reliable choice.

Overall, this heater delivers hot water consistently, quietly, and efficiently, making it a smart upgrade for any RV owner.

What Is an On-Demand Water Heater for RVs?

Features Benefits Price Range
Instant Heating Provides hot water on demand, eliminating the need for a storage tank. $150 – $800 depending on capacity and brand.
Energy Efficiency Typically more energy-efficient than traditional tank heaters, saving on energy costs. Cost varies by efficiency rating and technology used.
Compact Design Space-saving design ideal for RV installations where space is limited. Higher prices for more compact and efficient models.
Warranty Information Most models come with a 1-5 year warranty, depending on the manufacturer. Warranty terms can affect overall value.
Common Brands Popular brands include Truma, Atwood, and Girard. Prices vary by brand reputation and features.
Installation Requirements Typically requires basic plumbing knowledge; may need professional installation. Installation costs depend on complexity and labor rates.
Flow Rate Capacity Common flow rates range from 2 to 10 gallons per minute. Higher flow rates generally cost more.

How Do On-Demand Water Heaters Work in RVs?

Feature Type A Type B
Heating Capacity Up to 60,000 BTU – Suitable for larger RVs. Up to 30,000 BTU – Ideal for compact RVs.
Energy Source Gas – Provides quicker heating and higher efficiency. Electric – Easier to install but may take longer to heat water.
Cost Approximately $700 – Higher initial investment. Approximately $300 – More budget-friendly option.
Size Larger footprint – Requires more installation space. Compact design – Fits in smaller spaces.
Water Flow Rate Up to 5 gallons per minute – Supports multiple outlets. Up to 3 gallons per minute – Suitable for single outlet use.
Installation Complexity Requires professional installation – More complex due to gas lines. DIY friendly – Easier to install with standard electrical connections.
Maintenance Requirements Regular maintenance needed for gas lines – Check for leaks annually. Minimal maintenance – Just occasional descaling recommended.

What Should You Consider When Choosing an On-Demand Water Heater for Your RV?

When choosing the best on-demand water heater for your RV, there are several important factors to consider:

  • Flow Rate: The flow rate of the water heater is crucial, as it determines how much hot water the unit can deliver per minute. For RVs, a flow rate of 2-5 gallons per minute is often sufficient for showers and kitchen use, but you should assess your specific needs based on the number of occupants and simultaneous hot water usage.
  • Energy Source: On-demand water heaters can run on different energy sources such as propane, electricity, or a combination of both. Consider your RV’s existing energy setup and availability of fuel sources; for instance, propane heaters generally heat water faster and are more efficient in remote areas where electricity might be limited.
  • Size and Weight: The physical size and weight of the water heater are important for RV installations, as space is often limited. Ensure that the unit you choose fits within your RV’s designated area and is lightweight enough for your vehicle’s capacity, as excess weight can affect fuel efficiency.
  • Temperature Control: Look for models with adjustable temperature settings that allow you to control the output water temperature effectively. This feature can help prevent scalding and ensure comfort, especially if different users have varying temperature preferences.
  • Installation Requirements: Consider the complexity of the installation process for the on-demand water heater. Some models may require professional installation due to plumbing and electrical considerations, while others are designed for simpler DIY setups, which can save you time and money.
  • Energy Efficiency: Check the energy efficiency rating of the water heater, as higher efficiency can lead to lower energy costs and reduced environmental impact. Look for units with energy-saving features or certifications, which can be particularly beneficial during longer trips where energy conservation is a priority.
  • Durability and Warranty: Since RVs are often exposed to varying conditions, choosing a durable water heater is essential for longevity. Additionally, look for models that offer a good warranty period, as this can provide peace of mind regarding the reliability of your investment.

How Does Fuel Type Impact Your On-Demand Water Heater Choice?

The choice of fuel type significantly influences the performance, efficiency, and suitability of on-demand water heaters for RVs.

  • Electric On-Demand Water Heaters: These units are powered by electricity and are popular for their simplicity and ease of installation.
  • Propane On-Demand Water Heaters: Propane heaters are favored for their efficiency and ability to provide hot water quickly, making them well-suited for off-grid RV use.
  • Hybrid On-Demand Water Heaters: Combining both electric and propane capabilities, hybrid models offer versatility and can adapt based on available resources.

Electric On-Demand Water Heaters: These units are powered by electricity and are popular for their simplicity and ease of installation. They can be easily connected to the RV’s electrical system and are ideal for locations with ample electrical supply, providing consistent hot water without the need for fuel storage. However, their performance can be limited by the available amperage, particularly in smaller RVs.

Propane On-Demand Water Heaters: Propane heaters are favored for their efficiency and ability to provide hot water quickly, making them well-suited for off-grid RV use. They usually deliver higher flow rates compared to electric units and can heat water rapidly, which is advantageous when several showers or appliances are in use simultaneously. However, they require storage tanks for propane and proper ventilation for safe operation.

Hybrid On-Demand Water Heaters: Combining both electric and propane capabilities, hybrid models offer versatility and can adapt based on available resources. They can operate on electricity when connected to a power source and switch to propane during off-grid trips, ensuring a reliable hot water supply in various situations. This flexibility often comes at a higher upfront cost but can lead to increased convenience and efficiency in diverse environments.

What Flow Rate Should You Aim for With an RV Water Heater?

When selecting an on-demand water heater for your RV, considering the flow rate is essential to ensure adequate hot water supply for your needs. The flow rate, measured in gallons per minute (GPM), indicates how much hot water the heater can provide during operation. Here are key factors to keep in mind:

  • Typical Flow Rates: For RVs, a flow rate between 2 to 5 GPM is generally recommended. Lower flow rates may be suitable for simple needs like handwashing, while higher flow rates are ideal for more demanding tasks like showers and multiple faucets running at once.

  • Occupancy and Usage: Consider the number of people using the RV and their hot water needs. For example, if you have a family that likes long showers, opting for a model with higher flow rates will improve everyone’s experience.

  • Water Temperature: Colder water requires more energy to heat. If you frequently camp in colder climates, a heater with a higher flow rate can compensate for the colder incoming water temperature.

Choosing a water heater that matches your flow rate needs ensures comfort while camping without the frustration of inconsistent hot water supply.

What Size and Weight Constraints Should You Be Aware of?

Flow Rate: The flow rate capability is influenced by both the size and the installation of the heater. A larger unit may provide a higher flow rate, but it is essential to ensure that it fits within the RV’s plumbing system and meets the hot water demands of the occupants.

Energy Source Compatibility: Different water heaters operate on various energy sources, and their size may dictate the type of connections available. Ensure that the water heater’s dimensions and design align with your RV’s energy system to avoid compatibility issues during installation.

What Are the Key Features of the Best On-Demand Water Heater for RVs?

Feature Water Heater A Water Heater B
Heating Capacity Up to 3.5 GPM, ideal for small RVs. Up to 5 GPM, suitable for larger RVs with higher demands.
Energy Source Propane powered, efficient for outdoor use. Electric powered, convenient for plugged-in RVs.
Temperature Control Digital temperature control for precise adjustments. Manual dial for easy temperature settings.
Weight Compact design at 20 lbs, easy to install. Heavier at 35 lbs, requires more space for installation.
Warranty 1-year limited warranty. 2-year limited warranty.
Price Range Approximately $150 – $200. Approximately $250 – $300.
Safety Features Overheating protection and flame failure safety. Built-in thermal cut-off and anti-scald feature.
Flow Rate Stability Maintains consistent flow rate even with temperature changes. Stable flow rate with minimal fluctuation in varying temperatures.

What Are Some Highly Recommended Models of On-Demand Water Heaters for RVs?

Model Features Price Energy Source Warranty Weight Customer Rating
Camplux 5L Compact design, 1.32 GPM, suitable for small RVs $120 – Affordable for casual users Gas 1 year 11.5 lbs 4.5/5
Ecosmart ECO 11 Electric heater, 11 kW, digital temperature control $250 – Efficient for larger needs Electric Lifetime 8 lbs 4.6/5
Suburban SW6DE Gas/Electric, 6-gallon capacity, quick recovery rate $800 – Ideal for extended trips Gas/Electric 2 years 50 lbs 4.3/5
Atwood GV10 10-gallon capacity, lightweight, direct spark ignition $500 – Great for family RVs Gas 2 years 38 lbs 4.4/5

How Do Customer Reviews Inform Your Decision?

Value for money is often discussed in reviews, as customers assess whether the features and performance justify the price tag, which is particularly important for RV owners looking to maximize their budget.

Customer support experiences can vary widely, and reviews that mention responsive or unhelpful service can guide buyers toward brands that prioritize customer satisfaction, ensuring they have support when needed.

What Are the Advantages and Disadvantages of On-Demand Water Heaters for RVs?

Advantages Disadvantages
Instant hot water on demand, reducing wait times. Higher initial cost compared to traditional heaters.
Energy efficient, only heats water when needed. May have limitations on flow rate with multiple outlets.
Space-saving design, ideal for RVs. Installation can be complex for some models.
Potential for inconsistent water temperature if demand exceeds capacity. Requires a specific power supply, which may not be available in all RVs.
Maintenance may be more frequent than traditional heaters.

How Do You Properly Maintain Your On-Demand Water Heater for Optimal Performance?

Proper maintenance of your on-demand water heater can significantly enhance its performance and longevity, especially for RV use.

  • Regular Flushing: Flushing your water heater regularly helps remove sediment buildup that can affect efficiency. Sediment can accumulate in the heat exchanger, reducing heat transfer and causing the unit to work harder, which may lead to premature failure.
  • Inspecting the Anode Rod: The anode rod is crucial in preventing corrosion within the tank. Checking and replacing the anode rod every couple of years protects your water heater from rust and extends its lifespan, ensuring optimal performance.
  • Checking the Venting System: The venting system must be clear and unobstructed to allow safe exhaust of gases. Regularly inspect the vent for blockages or damage, as proper ventilation is essential for efficient operation and safety.
  • Testing the Pressure Relief Valve: The pressure relief valve prevents excessive pressure buildup in the heater. Test this valve periodically to ensure it opens correctly; a malfunctioning valve can be a safety hazard and lead to system failure.
  • Cleaning the Filters: Many on-demand water heaters have filters that need to be cleaned or replaced to maintain water flow and efficiency. Regular maintenance of these filters prevents clogs and ensures that the heater operates smoothly.
  • Monitoring Temperature Settings: Keeping your temperature settings at an optimal level prevents overheating and saves energy. Regularly check and adjust the thermostat to ensure it meets your hot water needs without excessive energy consumption.
  • Professional Inspections: Scheduling annual inspections with a qualified technician helps identify potential issues before they become serious problems. A professional can provide insights and maintenance tips tailored to your specific water heater model, ensuring it operates at its best.
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