Best RV Tankless Propane Water Heaters

The best RV tankless propane water heater provides an endless supply of hot water for campers, travelers, and anyone seeking comfort away from home. Selecting the right model ensures efficiency, reliability, and an improved overall experience in your recreational vehicle. Factors like flow rate, energy consumption, installation complexity, and durability vary significantly between units, and a mismatch can lead to frustrating cold showers, wasted fuel, and premature replacement costs.

To help you navigate the options and find the perfect fit for your mobile lifestyle, we’ve compiled a list of the top contenders in Explore these premium choices to elevate your RVing journey with consistent, on-demand hot water.

The best RV tankless propane water heater often features high BTU output for consistent hot water, such as models like the APUS RV Tankless Water Heater (68,000 BTU) or ORBEK RV Tankless Water Heater (60,000 BTU). Key considerations include the unit’s BTU rating, flow rate (GPM), and suitability for various temperatures and altitudes.

Best RV Tankless Propane Water Heater: Top Picks at a Glance

Image	Product	Buy
Best Pick 1	GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet Best for: Quiet operation campers	Check Price
Best Pick 2	APUS RV Tankless Water Heater, 68,000 BTU Propane Gas On Best for: High-output adventurers	Check Price
Best Pick 3	ORBEK RV Tankless Water Heater, Ideal for RV Families & Best for: Family travel campers	Check Price
Best Pick 4	RV Tankless Water Heater, Propane-Powered, with 15″×15″Black Door and Remote Best for: Remote controlled users	Check Price
Best Pick 5	Furrion® RV Tankless Gas 60,000 BTU Water Heater – 16.14″ Best for: Ambitious campers	Check Price

How We Picked

Selecting the best rv tankless propane water heater involved rigorous evaluation. We prioritized performance metrics like BTU output (ranging from 42,000 to 68,000) and GPM capacity, alongside user-centric features such as quiet operation and 12V power options. Safety and durability were paramount, leading us to favor models with advanced fire row designs and high-altitude suitability, like the Fogatti InstaShower.

Build quality and real-world performance, especially in colder conditions, were assessed through detailed product descriptions. Models lacking clear indications of robust construction or consistent temperature control were carefully considered, ensuring our recommendations offered exceptional value and reliability for any RV traveler.

What Most Buyers Get Wrong

BTU: Understanding Your RV’s Hot Water Muscle

When selecting an RV tankless water heater, the BTU (British Thermal Unit) rating is crucial. It signifies the unit’s heating power. Higher BTUs, like the 68,000 BTU on the APUS model or the 60,000 BTU options from ORBEK and Furrion, mean faster heating and the ability to supply hot water to multiple fixtures simultaneously.

For intense use, consider higher BTU ratings to avoid temperature drops during showers, especially with models like the GIRARD (42,000 BTU) and APUS (68,000 BTU) which show a wide range.

Altitude Adjustments for Mountain Adventures

If your travels take you to higher elevations, especially above 5,000 feet, you’ll need a water heater designed for high-altitude performance. Standard propane appliances can struggle with thinner air, leading to inefficient burning and potential shutdowns. The FOGATTI InstaShower 8 Plus explicitly mentions high-altitude readiness up to 9,800 ft, ensuring consistent hot water even on challenging mountain passes, a feature not relevant for heaters intended for sea-level use only.

1. GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet

Best for: Quiet operation without compromising hot water.

The Girard 12V continuous hot water heater boasts a 42,000 BTU output and a quiet, brushless 12V motor, allowing for virtually noiseless operation while providing ample hot water for your RV.

This unit’s onboard microprocessor actively monitors incoming water temperature, flow rate, and outgoing hot water to maintain a steady, consistent temperature. It efficiently regulates the burner, ensuring you avoid cold spots and enjoy a reliable hot water supply throughout your journey.

Pros

• 42,000 BTU heat output for robust water heating
• 12V operation with low amp draw for quiet use
• Microprocessor regulates temperature for consistency
• Half the fuel consumption of traditional tank heaters

Cons

• Maximum temperature limited to 124°F, which may be insufficient for some users.

This model is ideal for RV owners prioritizing quiet operation. Travelers seeking continuous hot water without intrusive noise will find this heater a strong performer.

2. APUS RV Tankless Water Heater, 68,000 BTU Propane Gas On

Best for: High-flow for families and demanding use.

With a powerful 68,000 BTU output, the APUS RV tankless water heater delivers 3.9 GPM, ensuring an endless supply of hot water for multiple uses simultaneously, from kitchen sinks to showers.

This unit provides 3.9 GPM at a maximum temperature of 124°F, meaning you won’t experience a wait time for hot water, even during peak usage. Its compact dimensions of 14.96 x 14.96 x 14.18 inches allow for easy integration into various RV spaces.

Pros

• High 68,000 BTU output for rapid heating
• Generous 3.9 GPM flow rate
• Features anti-freezing and dry combustion protection
• Integrated LED display for easy monitoring

Cons

• Requires 12V DC power for operation, in addition to propane.

This heater is well-suited for larger RVs or families with significant hot water demands. Individuals needing reliable on-demand hot water for extended periods will appreciate its capacity.

3. ORBEK RV Tankless Water Heater, Ideal for RV Families &

Best for: Energy-efficient heating for RV families.

The Orbek RV tankless water heater outputs 60,000 BTU, activating its burner only when hot water is needed, which conserves energy and eliminates waiting for water to heat up.

This model offers an adjustable temperature range from 95°F to 123°F, providing precise control over your hot water. With a flow rate of 3.5 GPM, it effectively meets the high-demand needs of families or multiple users in an RV.

Pros

• Powerful 60,000 BTU heat output
• Conserves energy with on-demand heating
• Adjustable temperature from 95°F to 123°F
• Includes anti-freezing protection

Cons

• Maximum pressure capacity is 150 PSI, which may be a limitation in certain water systems.

Ideal for RV families seeking efficient and consistent hot water supply. This heater is a great option for those who value energy conservation and reliable performance.

4. RV Tankless Water Heater, Propane-Powered, with 15″×15″Black Door and Remote

Best for: Stylish and functional for RV upgrades.

Delivering 60,000 BTU of heat output, this RV tankless water heater provides on-demand hot water, activating its burner only when needed to conserve energy and eliminate waiting times.

This unit features a high-performance system with an adjustable temperature range of 95°F to 123°F, ensuring your ideal comfort level. It comes with a 15″x15″ black door for a sleek, integrated appearance in your RV, and includes anti-freezing protection for year-round use.

Pros

• 60,000 BTU heating power for quick recovery
• On-demand activation saves propane
• User-adjustable temperature control
• Includes anti-freezing protection

Cons

• While it offers 24/7 customer support, it only comes with a 1-year warranty.

This water heater is perfect for RV owners looking for an energy-efficient upgrade with a modern aesthetic. It’s designed for seamless use during showers and dishwashing, ensuring comfort on the road.

5. Furrion® RV Tankless Gas 60,000 BTU Water Heater – 16.14″

Best for: Retrofit replacement with consistent temperatures.

The Furrion RV Tankless Gas Water Heater features 60,000 BTU heating power and a 2.4 GPM capacity, designed to deliver hot water on demand with consistent temperatures, even in colder ambient conditions.

With its Vortex technology, this heater consistently mixes water to your desired temperature, while dual-sensors ensure safety by automatically shutting off if temperatures exceed a set limit. Its 2.4 GPM flow rate ensures a steady supply for your RV needs.

Pros

• High 60,000 BTU heating power
• Consistent water temperature with Vortex technology
• Overheat protection for safety
• Designed for easy replacement of Suburban models

Cons

• Flow rate of 2.4 GPM is lower than some competing models.

This Furrion heater is an excellent choice for RV owners needing a reliable replacement for existing Suburban units. Its consistent temperature delivery makes it ideal for everyday RV use.

6. Gen II Ranein On-Demand Propane RV Tankless Water Heater, 15×15

Best for: Efficient heating for various climates.

The Gen II Ranein On-Demand Propane RV Tankless Water Heater features an advanced deep fire row design for maximum heating efficiency, delivering consistent hot water even in cold winter conditions.

Adjustable from 95°F to 124°F, this unit utilizes staged combustion to prevent overheating in summer and conserve propane. With a 2.9 GPM flow rate, it provides sufficient hot water for typical RV usage, making it suitable for moderate climates.

Pros

• Efficient deep fire row design
• Adjustable temperature range (95°F-124°F)
• Staged combustion saves propane
• Features anti-freezing protection

Cons

• Rated at 42,000 BTU, which is lower than some higher-output models.

This Ranein water heater is a good option for RV owners in moderate climates seeking efficient, on-demand hot water. Its design makes it an easy replacement for many existing RV water heaters.

7. FOGATTI InstaShower 8 Plus RV Tankless Water Heater, 3 Door

Best for: High-altitude performance and compact design.

The FOGATTI InstaShower 8 Plus RV Tankless Water Heater operates effectively at altitudes up to 9,800 feet, thanks to its high-altitude suitability mode, ensuring reliable hot water even in mountainous regions.

This unit features staged combustion technology that controls flame levels, preventing overheating in summer and conserving propane. With a flow rate of 2.9 GPM and an efficiency of 84%, it delivers a good balance of performance and resource conservation.

Pros

• Operates reliably up to 9,800 ft altitude
• Staged combustion for temperature control and fuel saving
• Features low water pressure start-up
• Anti-freezing and overheat protection included

Cons

• With a heat output of 55,000 BTU, it’s not the highest-powered unit available.

This FOGATTI heater is ideal for RVers who frequently travel to high-altitude areas. Its advanced features make it a robust choice for maintaining hot water comfort across diverse environments.

8. RV Tankless Water Heater, 65000BTU Dual-Outlet Lockable Instant Camper Hot

Best for: High-flow and temperature control for continuous use.

This RV tankless water heater delivers up to 65,000 BTU and 3.9 GPM, providing instant hot water in as little as 3 seconds for an endless supply without interruptions.

With a maximum temperature output of 140°F, this unit offers robust heating capabilities for all your RV needs, from long showers to kitchen tasks. Its on-demand ignition means it only operates when a tap is turned on, contributing to energy savings.

Pros

• High 65,000 BTU output
• Impressive 3.9 GPM flow rate
• Instantaneous hot water delivery
• Features anti-freezing protection

Cons

• Operates on DC power and propane; requires a 12V connection.

This heater is perfect for RV owners who demand high flow rates and instant hot water for multiple simultaneous uses. Travelers seeking uninterrupted hot water for extended camping trips will find it very effective.

9. ORBEK RV Tankless Water Heater, Propane Gas On-Demand Instant Hot

Best for: Robust heating for travel trailers and campers.

Powered by a 60,000 BTU propane heating system, the Orbek RV tankless water heater delivers a stable hot water flow of up to 3.5–3.9 GPM for everyday RV use.

This on-demand design eliminates the need for long preheating or limited tank capacity, providing continuous hot water for showers, dishwashing, and cleaning. It is designed for RV travel and suitable for high-altitude use, accommodating demanding conditions.

Pros

• Powerful 60,000 BTU heating capacity
• Up to 3.9 GPM flow rate
• On-demand continuous hot water
• Includes anti-freezing protection

Cons

• While offering 24/7 support, specific warranty details are only for 24 months.

This Orbek model is well-suited for travel trailers and campers needing reliable hot water. Its performance at high altitudes makes it a versatile choice for adventurous RVers.

10. Gen II Ranein RV Tankless Water Heater 65,000 BTU, On-Demand

Best for: Powerful, high-flow for demanding RVs.

The Gen II Ranein RV Tankless Water Heater, with its 65,000 BTU high-output burner, heats water faster and delivers a stable flow up to 3.9 GPM, supporting simultaneous faucet use without a drop in pressure.

This unit’s higher BTU and GPM output ensure longer, uninterrupted showers with fewer temperature swings, controlled precisely between 95°F and 124°F. Staged combustion technology further enhances its energy efficiency and performance in various conditions.

Pros

• High 65,000 BTU output for rapid heating
• Strong 3.9 GPM flow rate
• Consistent temperature control (95°F-124°F)
• Energy-efficient design

Cons

• This unit is a built-in mount type, limiting placement flexibility compared to wall mounts.

This Gen II Ranein heater is an excellent choice for RV owners who require significant hot water volume and flow. It’s designed for those who need robust performance for extended use and simultaneous demand.

BTU vs. Flow Rate: Which Water Heater Spec Matters Most

When selecting a best rv tankless propane water heater, prioritize the continuous flow rate over raw BTU output. The sustained water delivery capability is what dictates your actual showering and dishwashing experience, not just the peak heating power. While a higher BTU rating, such as the impressive 68,000 BTU of the APUS RV Tankless Water Heater, indicates a unit’s capacity to heat water quickly, it’s the Gallons Per Minute (GPM) it can achieve consistently that prevents you from running cold mid-wash.

Consider the Furrion® RV Tankless Gas 60,000 BTU Water Heater, which claims a 2.4 GPM capacity. Compared to the 3.9 GPM offered by models like the APUS RV Tankless Water Heater or the RV Tankless Water Heater, 65000BTU Dual-Outlet Lockable Instant Camper Hot, the Furrion might struggle to keep up with simultaneous demands, even with its substantial 60,000 BTU rating. The ORBEK RV Tankless Water Heater and the similar RVPart Pro model, both at 60,000 BTU, often list higher flow rates, closer to 3.5-3.9 GPM, making them potentially more suitable for families or situations where multiple water sources might be used concurrently.

The GIRARD Tankless RV Water Heater, with its 42,000 BTUs, is on the lower end and would naturally have a lower GPM, better suited for lighter, single-use scenarios.

The true test lies in how well these heaters perform under load. A 60,000 BTU unit that delivers a steady 3.9 GPM will provide a demonstrably better experience than a 68,000 BTU unit that can only sustain 3.0 GPM. Models like the Gen II Ranein RV Tankless Water Heater and the Gen II Ranein On-Demand Propane RV Tankless Water Heater emphasize both high BTU and consistent flow, which is ideal, but it’s the GPM specification that will directly translate to your comfort.

Features like high-altitude suitability, found on the FOGATTI InstaShower 8 Plus RV Tankless Water Heater, are important, but secondary to the fundamental ability to deliver enough hot water when you need it.

Ultimately, chasing the highest BTU number without considering the GPM can lead to disappointment. You might have a unit capable of rapid heating, but if it can’t deliver that heated water fast enough, you’ll experience the familiar drop in temperature. For consistent, on-demand hot water across multiple uses, look beyond just the BTU rating and focus on the gallons per minute delivered.

For those prioritizing maximum simultaneous use, the RV Tankless Water Heater, 65000BTU Dual-Outlet Lockable Instant Camper Hot, with its stated 3.9 GPM, offers a compelling specification.

What to Look for in the Best RV Tankless Propane Water Heater

Heating capacity flow rate

Choose your RV tankless water heater based on the GPM (Gallons Per Minute) output that matches your usage. For a single faucet, 1.0-1.5 GPM is sufficient. If you plan to run a shower and sink simultaneously, aim for 2.5-3.5 GPM to ensure consistent hot water.

Prioritize models with a temperature rise capability of at least 50-70°F to handle colder water sources and provide comfortable shower temperatures. For RVs with a single bathroom and basic needs, a 2.5 GPM unit is your best bet.

Ignition type power source

Opt for electronic ignition for effortless operation; it’s the modern standard and avoids the manual hassle of piezo igniters. Ensure the unit runs on standard 12V DC power, common in RVs, and check for a reliable battery backup to guarantee ignition even without shore power. A secure, standard propane connection, typically 3/8 flare fittings, is essential for safety and proper gas flow.

This combination offers convenience and reliability for all your hot water needs.

Dimensions mounting

Consider the physical dimensions and weight to ensure a seamless installation in your RV’s designated space. Compact units that measure around 10-15 inches in height and width, with a depth under 10 inches, are generally easier to integrate. Focus on models with lighter chassis, ideally under 20-25 pounds, for straightforward mounting without compromising structural integrity.

Prioritize exterior mounting options to maximize interior living space, making smaller RVs feel more expansive.

Winterization features

For RVers who travel in colder climates, look for tankless water heaters with integrated automatic drain systems. This feature is critical for preventing freeze damage. Models featuring built-in electric heating elements for low-temperature protection offer an additional layer of security against freezing, even when the propane is off.

Selecting a unit with these robust winterization features guarantees reliable operation year-round, protecting your investment from harsh weather.

Which Should You Choose?

• If you have a large family or multiple users demanding hot water simultaneously, choose a model with at least 60,000 BTU and a high GPM rating (3.5-3.9 GPM).
• If you prioritize quiet operation and RV power efficiency, look for models with around 42,000 BTUs and a 12V brushless motor that runs on low amps.
• If you frequently camp in higher altitudes, select a heater specifically designed with a high-altitude suitability mode.
• If you need consistent hot water even in colder ambient temperatures, opt for a unit with higher BTUs (60,000+) and features designed for cold-weather performance.

Quick Best Rv Tankless Propane Water Heater Buying Checklist

• Check Ignition Type: Opt for electronic ignition for easier startup, though some prefer manual piezo for simplicity.
• Verify Flow Rate (GPM): Ensure the Gallons Per Minute rating meets your needs for multiple fixtures.
• Consider Temperature Rise: Confirm the heater can achieve your desired hot water temperature, even in colder climates.
• Evaluate Venting Requirements: Understand the necessary venting setup for safe and efficient operation.
• Review Dimensions and Weight: Make sure the unit will fit in your designated space and can be securely mounted.
• Look for Winterization Features: If you’ll be using your RV in freezing temperatures, a unit with freeze protection is crucial.

Frequently Asked Questions

How Do Rv Tankless Propane Water Heaters Provide Continuous Hot Water?

RV tankless propane water heaters provide continuous hot water by heating water on demand as it flows through the unit. Unlike traditional tank heaters, they don’t store hot water, ensuring an endless supply as long as propane and water are available.

What Is A Typical Flow Rate For The Best Rv Tankless Propane Water Heaters?

The best RV tankless propane water heaters typically offer flow rates between 1.5 to 3 gallons per minute (GPM). This is usually sufficient for running a shower and sink simultaneously, depending on the specific model’s capabilities.

Are Rv Tankless Propane Water Heaters More Efficient Than Tank Models?

Yes, RV tankless propane water heaters are generally more energy-efficient than tank models because they only heat water when needed. This on-demand heating prevents standby heat loss associated with maintaining a full tank of hot water.

What Are The Benefits Of Electronic Ignition On Rv Tankless Propane Water Heaters?

Electronic ignition provides effortless startup for RV tankless propane water heaters without manual pilot light management. This offers convenience and quicker access to hot water, often with a simple push of a button.

Can An Rv Tankless Propane Water Heater Operate In Freezing Temperatures?

Many modern RV tankless propane water heaters are designed with freeze protection features, allowing operation in sub-zero conditions. These units often have automatic drain systems or internal heating elements to prevent damage from frozen water.

Final Words

Investing in the best RV tankless propane water heater significantly enhances your travel comfort by providing endless hot water. Enjoy the convenience of not running out during showers or dishwashing, making every trip more enjoyable. Upgrade your RV experience today with reliable and efficient on-demand hot water.