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Best Rv On Demand Water Heater (2023 Update)

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If you’re looking for the best RV on demand water heater, it’s important to consider a few factors before making your purchase decision. With so many different options available on the market, understanding what to look for can help you find the perfect water heater to meet your needs and budget.

One of the most important factors to consider when shopping for an RV on demand water heater is the size and capacity of the unit. Depending on the size of your RV or camper, you’ll need a water heater that can provide enough hot water to meet your needs. In addition, factors like energy efficiency and ease of installation should also be taken into account.

When comparing different RV water heaters, it’s also important to consider factors like reliability, durability, and overall performance. Look for products from reputable brands that have a proven track record of delivering high-quality, reliable products that can stand the test of time.

If you’re not sure where to start your search, ask yourself some questions to help guide your decision-making process. How frequently do you use hot water while traveling? How much hot water do you typically need at one time? Are you more concerned with price or performance? Taking the time to answer these questions can help you find the best RV on demand water heater to meet your unique needs and preferences.

10 Best Rv On Demand Water Heater

# Product Image Product Name Product Notes Check Price
1

It is ideal for providing instant hot water on demand for residential or commercial use.

2

This product is ideal for providing hot water on demand for home kitchens and bathrooms.

3

Ideal for providing hot water on demand in point of use applications, without the need for a separate tank or storage.

4

Ideal for outdoor use such as camping, boating, and cabins to provide hot water instantly with multi-protection features.

5

Ideal for providing instant hot water under the kitchen sink with a 6.5 gallon tank capacity and 120V/1440W power.

6

The product is ideal for providing instant hot water on demand in homes or businesses.

7

Ideal for providing hot water on demand in small spaces such as RVs, boats, cabins, and bathrooms.

8

This product is ideal for heating water on demand in campers or recreational vehicles.

9

This product is ideal for providing instant and on-demand hot water at a specific location, such as a sink or shower.

10

Ideal for providing instant and continuous hot water for sink and faucet, while also saving energy through self modulation.

It is ideal for providing instant hot water on demand for residential or commercial use.

This product is ideal for providing hot water on demand for home kitchens and bathrooms.

Ideal for providing hot water on demand in point of use applications, without the need for a separate tank or storage.

Ideal for outdoor use such as camping, boating, and cabins to provide hot water instantly with multi-protection features.

Ideal for providing instant hot water under the kitchen sink with a 6.5 gallon tank capacity and 120V/1440W power.

The product is ideal for providing instant hot water on demand in homes or businesses.

Ideal for providing hot water on demand in small spaces such as RVs, boats, cabins, and bathrooms.

This product is ideal for heating water on demand in campers or recreational vehicles.

This product is ideal for providing instant and on-demand hot water at a specific location, such as a sink or shower.

Ideal for providing instant and continuous hot water for sink and faucet, while also saving energy through self modulation.

1. Adasea Mini Instant Electric Water Heater – On Demand

Introducing the upgraded tankless water heater, designed to provide instant hot water without the need for a storage tank. This innovative product operates on a voltage of AC 110V and requires wire specifications of 2.08mm² Copper wire (#14 awg wire) and a trip switch of ≥32A (otherwise it will trip). The water temperature range is between 35-50℃, and the outlet water temperature is dependent on the inlet water temperature and flow rate. With a larger flow rate, the temperature is lowered, and with a smaller flow rate, the temperature is raised.

With this instant heating technology, the tankless water heater is always ready to supply warm water continuously for 24 hours without any standby energy consumption. You no longer have to wait for the tank to fill up, making it a convenient and efficient option for your home.

Using the upgraded tankless water heater is easy and simple. It can be controlled by remote control or button, allowing you to adjust the temperature to your desired preference. The installation process is straightforward, and the product is lightweight and can be installed vertically facing up or down. It is also small and exquisite, saving space and making installation and disassembly a breeze.

What sets this tankless water heater apart is its energy-saving feature. It only heats water when you need it, and since there is no hot water tank, it saves up to 50% of water compared to ordinary water heaters. This means you can save on your electricity and water bills while reducing your carbon footprint.

Please note that the water heater requires a circuit breaker larger than 32 amps, and the outlet water temperature may not be very hot as the water heater is only 3KW. Therefore, it is not recommended for use in bathing but can be used for washing hands or in the kitchen. It is crucial to check the wire specifications before installation. If you feel that the water heater is not heating up to your preferred temperature, try waiting longer or reducing the water flow.

2. Instant Hot Water Heater With Remote Control

This domestic tankless electric water heater is designed with safety in mind, having undergone rigorous testing to ensure its safety features. It boasts multiple protection functions, including water and electricity isolation, IPX4 waterproofing, leakage protection, dry-burning protection, and automatic power-off in over-temperature and inactive states.

With a high-efficiency output of 3000W, this mini water heater is capable of fast heating in just 3 seconds, and can maintain a constant temperature to provide the best water temperature for you. The water temperature can be easily adjusted with the water flow, with a temperature range of 28℃-55℃/82℉-131℉.

Installation is a breeze with the mini body, making it easy to install in the bathroom, kitchen, or under the sink. It features a standard 1/2 interface for inflow or outflow, and can be directly connected to household conventional hose connectors. Please note that the plug current should be between 27-32A, the trip switch should be greater than 32A, the circuit breaker within 4000W requires greater than C32, and the wire within 4000W requires 2.5m².

This water heater is perfect for providing comfortable water temperature for washing food, dishes, clothes, face, hands, and more. It is only suitable for summer showers. Moreover, washing hands and face frequently with hot water can effectively prevent various diseases such as colds, making it a must-have for every family.

3. Thermomate 3.5kw Tankless Electric Water Heater

Introducing the Instant Heating Point of Use Water Heater – a compact, self-modulating unit that provides hot water only when needed, ensuring no standby energy consumption. This water heater is perfect for those looking to save space and energy, as it is designed for single sink use and can easily fit into small spaces throughout your home or business.

With its touch control panel and digital temperature display, setting your desired temperature has never been easier. The temperature ranges from 85°F to 131°F, ensuring that you have hot water at the temperature you prefer. The unit is also equipped with multiple protection features, including protection from leakage, dry fire, over-heating, and over-pressure, making it a safe and healthy option for your home or business.

The Instant Heating Point of Use Water Heater is self-modulating, meaning that it automatically adjusts the power based on the change of inlet water flow and temperature, saving up to 50% energy consumption and preventing over-heating. Additionally, it features a stainless steel heating element and no storage water, ensuring that there is no sediment or scale build-up.

This water heater is lightweight and easy to install, with the option of being installed vertically facing up or down. Please note that this unit requires hard wiring and a 40A circuit breaker, 10AWG wire size, and 1/2"NPT water connections.

4. Gas Hot Tankless Water Heater – 4.21gpm

The propane water heater is an efficient and energy-saving appliance that guarantees instant and endless hot water supply wherever you are. It is designed with advanced combustion technology that reduces gas consumption and burning noise while maximizing power output at 68,000btu/hour. With 11.5% energy-saving technology, this water heater provides more hot water for less money.

Safety is a top priority, which is why this tankless water heater is CSA approved and comes with a regulator that meets Canadian and US standards. It also features several safety protections, including a flame failure device, anti-freezing protection, and over-heating protection to ensure maximum safety for your family. The water pressure is automatically decreased between 3.6-110PSI.

The lightweight and compact design of this water heater make it easy to carry and transport wherever you go. Its dimension measures 13.4×5.9×21.65 inches, making it perfect for outdoor showering while camping, hiking, fishing, or at the beach. You can also use it to give your pets a comfortable hot bath. The shower head comes with a one-button feature that allows you to stop the water flow and prevent water waste.

Installation is a breeze with the BSP pipe fittings and all necessary accessories included. The propane water heater has three interface ports, with the left one being the air inlet, the middle one being the shower port, and the right one being the water inlet. Customers find it incredibly convenient to install. However, it is essential to check for gas leakage before use to avoid improper operation that could lead to a fire outbreak.

5. Instant Hot Water Tank For Kitchen Sink

Looking for an instant and reliable source of hot water? Look no further than the Point of Use 6.5 Gallons Mini Tank Water Heater. With a fast recovery time and thermal efficiency of up to 99%, you can enjoy hot water whenever you need it without any waiting.

The compact design of this mini tank water heater, measuring 17.7" x 17.7" x 14.6", makes it easy to install under your sink or counter, and it can even be wall-mounted. Plus, the upgraded plugin makes it even easier to use.

The thermostat offers three adjustable temperature levels, ranging from 50°F to 149°F, and is equipped with high-temperature limit protection as well as a freeze mode to prevent the tank from freezing. The glass-lined tank provides excellent insulation, and a temperature and pressure relief valve is included for added safety.

This mini tank water heater is UL Listed, ensuring a long service life, and comes with a 3-year limited warranty for the tank and a 1-year warranty for parts. Additionally, 24-hour customer service is available to assist you with any product issues.

With water connections of 1/2" NPT and electrical requirements of 1.44 kW at 120 volts, this mini tank water heater has a nominal current of 12A and a maximum water pressure of 150 PSI.

Invest in the Point of Use 6.5 Gallons Mini Tank Water Heater for instant hot water and peace of mind.

6. Instant Black Heater – Camplux 6kw

Looking for a reliable and energy-efficient under sink water heater? Look no further than this compact and easy-to-use unit.

With its smart design, this water heater only heats water when you need it, saving up to 50% in energy consumption. And with a temperature rise of 1.0 GPM at 50°F, you can enjoy hot water between 85°F – 131°F in just two seconds.

Adjusting the temperature is a breeze, thanks to the LED touch display that allows you to easily read the real-time temperature and adjust the temperature increase or decrease according to the sink flow rate.

Safety is a top priority with this under sink water heater, which features a 304 food-grade stainless steel water tube that is resistant to scaling, even when used with hard water. And with anti-leakage, waterproof, over-heating protection, dry combustion protection, and troubleshooting self-test features, you can rest assured that this unit is safe to use.

Installation is quick and easy, with the unit requiring a 30A circuit breaker and 12AWG min wire size for hardwiring. It can be mounted under your bathroom sink or kitchen sink to provide hot water right where you need it. With dimensions of 10.95" x 7.4" x 2.52" and water pipe fittings of 1/2" NPT male, please ensure that the size is right for your needs.

The intelligent touch control makes setting and adjusting the temperature a breeze, with real-time display of water temperature and inlet water flow. Enjoy instant and endless hot water with this reliable and efficient under sink water heater.

Please note that this mini hot water heater is only suitable for sink use and should not be used for bathing. Also, it is important to note that this 240 volt point of use water heater must be hardwired and permanently connected to the fixed circuit breaker, with no plug. It must also be installed vertically.

7. Camplux Mini Tank Water Heater – Hot On-Demand!

The 2.5 gallon Pro mini-tank electric water heater is a versatile and easy-to-use product that provides hot water where you need it. With a 43.3" cord that plugs into a standard 120-volt outlet, this water heater is ideal for independent installation or in-line with a larger hot water source. It can be shelf, wall, or floor mounted, making it a multipurpose appliance that can be used in a variety of settings.

The product dimensions of the water heater are 12.9" W x 12.9" H x 11.5" D, and it can be installed directly at the sink to provide hot water. The water heater is equipped with a temperature and pressure relief valve that is CSA listed, ensuring reliable protection and safety. The maximum water pressure is 150 PSI, making it a durable and sturdy appliance that can withstand heavy use.

The thermostat control feature allows for easy adjustment of the water temperature, providing customizable hot water that suits any user's needs. Additionally, the high limit device ensures protection against overheating, providing a safe and reliable hot water source.

The electric water heater is easy to maintain, making it a cost-effective and long-lasting solution for hot water needs. The glass-lined tank enhances the product's durability and longevity, ensuring that it will provide hot water for years to come.

With its 2.5 gallon capacity, this Pro mini-tank electric water heater is perfect for small spaces, fitting easily under a sink to provide hot water right where you need it. It is a convenient and practical solution for any setting, providing users with reliable and customizable hot water.

8. Kingrver's On-Demand Rv Water Heater

Introducing the More Advanced RV Tankless Water Heater, the perfect solution for those who seek a continuous flow of hot water during multiple showers. Unlike traditional tank water heaters that require a 20-30 minute wait for hot water, this tankless water heater provides hot water instantly, allowing you to enjoy your shower whenever you want.

Versatile and practical, this unit can replace Suburban and Atwood's 6&10 gallons tank water heaters, as well as Girard and Furrion’s tankless water heaters, making it a great choice for a variety of applications.

The temperature is precisely controlled, ranging from 95°F-123°F. This RV tankless water heater features temperature fluctuation elimination technology that prevents the rising temperature, avoiding scalding injuries. Additionally, the staged combustion technology controls the amount of flame in summer, preventing the water from getting too hot and saving the limited propane gas available for caravan travel.

The More Advanced RV Tankless Water Heater is both energy-efficient and powerful, producing up to 2.2 gallons of hot water per minute with 42,000 BTU power. This tankless water heater consumes only half the LP gas that a 6-gallon tank water heater would consume for the same amount of hot water, making it an eco-friendly and cost-effective option.

In the box, you'll receive a water heater, a 15*15 door, and a remote control. The pressure relief valve is pre-installed on the unit for added convenience. You can also enjoy professional customer service and a 24-month worry-free warranty, ensuring that your investment is protected.

Upgrade your RV with the More Advanced RV Tankless Water Heater, and enjoy a steady flow of hot water whenever you need it!

9. Ecotouch Black 14kw Electric Tankless Water Heater

The tankless hot water heater electric ECO140B is a powerful and efficient option for those seeking instant and endless hot water. With a 14kW smart heating system, it supplies hot water of 120℉ or higher in seconds, eliminating the need for preheating and avoiding temperature fluctuation during shower time. This makes it the perfect companion for small apartments, including shower, sink faucets, dishwasher, washing machine, and more.

The electric on-demand tankless hot water heater ECO140B features self-modulation technology that adjusts the exact power input based on the current flow rate and temperature setting. This means that less power is consumed when you reduce water flow, resulting in an ideal temperature instead of scalding hot water. This ensures a comfortable and efficient experience, with optimal energy efficiency of 98%, saving considerable electric charge for you.

The electric tankless water heater 14kW is easy to use, thanks to its digital display and touch control panel, which makes temperature setting a breeze. Useful information on the screen provides a full understanding of the working status of the 240V water heater tankless, so you don't need to go through a hard lesson of setting. Simply turn on the faucet and let the smart instant hot water heater do the rest.

Safety and durability are key features of this electric tankless water heater. The newly updated and applied multiple protections, such as leakage protection, over-heating protection, and auto-stop, ensure 100% safety. Additionally, it is listed by ETL and qualifies for UL. The inner water and electricity lines are designed to run separately to avoid leakage risks and scale build-up. You can expect outstanding performance for years to come.

The sleek tankless water heater ECO140B is compact, about the size of a shoebox, making it possible to install anywhere point of use to avoid waste. It is ideal for shower, kitchen, bar, school, and hair salon. Please verify that it is the right size for you: 14kW at 240V(only); dimensions 11.14" (W) x 15.87" (H) x 3.46" (D); plumbing connections: 1/2" NPT. To install the 14kW Tankless Water Heater, it requires 240 Voltage, 1X60AMP Double Pole Breaker, and 1X6AWG/2 wires with Grounding.

10. Airthereal Evening Tide Tankless Water Heater

The Airthereal Electric Tankless Water Heater is a must-have for those who are tired of running out of hot water or waiting for it to warm up. With this unit, you can enjoy endless hot water on demand without any preheating or temperature fluctuations.

One of the biggest advantages of this water heater is its space-saving design. Unlike traditional water heaters with tanks that take up a lot of space, this wall-mounted unit uses 90% less space. This means you can reclaim valuable space in your home while still enjoying a reliable source of hot water.

In addition to saving space, the Airthereal Electric Tankless Water Heater is also energy-efficient. It only heats water when you need it, so you don't have to worry about wasting energy on heating and storing water in a tank. The self-modulating temperature technology ensures that the unit only uses energy to heat up water while you are using it, saving you up to 50% on water heating costs compared to a typical tank water heater.

It is important to note that in order to install the 9kW Electric Tankless Water Heater, you will need a 240 Voltage and 40 AMP Circuit Breaker Size. Make sure to check your breaker panel to ensure it meets these specifications before purchasing.

Safety is also a top priority with this water heater. It comes equipped with high-temperature protection, dry heating protection, and electrical leakage protection. This means you can enjoy on-demand hot water with peace of mind, knowing that you and your family are safe from potential hazards. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion, further adding to its safety features.

Best Rv On Demand Water Heater FAQs

Are RV on demand water heaters energy efficient?

RV on-demand water heaters are considered to be energy-efficient due to their ability to provide hot water instantly without the need for a storage tank. These water heaters work by heating water as it flows through the unit, which means that it only heats the water that is needed at that moment.

Compared to traditional water heaters that constantly heat and store water, on-demand water heaters use less energy since they only heat the water that is needed. This can result in significant energy savings over time, especially for RV owners who frequently move from one location to another.

However, it's worth noting that the energy efficiency of on-demand water heaters can vary depending on the type and model of the unit, as well as the frequency and duration of use. It's important to choose an RV on-demand water heater that is appropriately sized for your needs and to use it efficiently to maximize its energy-saving potential.

Can an RV on demand water heater be installed by the owner?

Yes, an RV on-demand water heater can be installed by the owner. However, it is important to note that the installation process can be complex and requires a certain level of skill and knowledge. It is recommended that the owner consults the manufacturer's instructions and guidelines before attempting the installation process.

The first step is to choose the correct size and model of the on-demand water heater that suits the RV's needs. Then, the owner should gather all the necessary tools and materials required for the installation process, including plumbing and electrical supplies.

The installation process involves removing the old water heater, mounting the new on-demand water heater in its place, connecting the plumbing and electrical systems, and testing the unit for proper functionality.

It is important to ensure that the installation is done correctly to avoid any potential safety hazards or damage to the RV. If the owner is unsure about the installation process, it is recommended to seek professional help from a licensed plumber or RV technician.

How do I maintain my RV on demand water heater to ensure optimal performance?

Maintaining your RV on demand water heater is crucial to ensure optimal performance. Here are some tips to help you keep it in good condition:

1. Regularly clean the water heater: Over time, mineral deposits can accumulate inside the water heater and reduce its efficiency. To prevent this, you should flush the water heater at least once a year. This will help remove any build-up and improve its performance.

2. Check the anode rod: The anode rod is a sacrificial metal rod that helps protect the tank from corrosion. Check it annually and replace it if it's visibly corroded or less than half an inch thick.

3. Inspect the pressure relief valve: The pressure relief valve is an important safety feature that prevents the water heater from overheating or exploding. Check it regularly to ensure it's working correctly and replace it if necessary.

4. Monitor the water pressure: High water pressure can damage the water heater and reduce its lifespan. Use a pressure regulator to keep the pressure below 50 psi.

By following these simple maintenance tips, you can ensure that your RV on demand water heater performs optimally and lasts for many years.

How do on demand water heaters work in RVs?

On demand water heaters, also known as tankless water heaters, work differently than traditional water heaters in RVs. Instead of storing and heating a large amount of water in a tank, on demand water heaters heat water as it is needed.

When a hot water tap is turned on in an RV, cold water flows into the on demand water heater and is heated by a gas burner or electric heating element. The heated water then flows out of the unit and to the faucet or showerhead. Once the hot water tap is turned off, the on demand water heater shuts off until hot water is needed again.

On demand water heaters in RVs are typically powered by propane or electricity. Propane-powered units are more common in RVs because they are more energy-efficient and can be used even when the RV is not plugged into an electrical outlet.

One advantage of on demand water heaters in RVs is that they take up less space than traditional tank water heaters. However, they may have lower flow rates than tank water heaters, which means that multiple hot water taps cannot be used simultaneously. Overall, on demand water heaters are a convenient and energy-efficient option for providing hot water in RVs.

How much does it cost to replace an RV on demand water heater?

The cost of replacing an RV on demand water heater can vary depending on various factors such as the type of unit you are replacing, the brand of the new unit you choose, and the complexity of the installation process. On average, you can expect to spend anywhere between $500 to $1500 for a new RV on demand water heater installation. However, if you are replacing an older unit with a more modern and efficient model, the cost may be higher. Additionally, if you require professional installation services, the cost may be higher depending on the complexity of the job. It's always recommended to get quotes from multiple vendors before making a purchase decision, and to work with a reputable professional who can help you identify the best unit for your needs and budget.

What are the best brands for RV on demand water heaters?

When it comes to RV on-demand water heaters, there are several brands to choose from that offer high-quality products. One of the top brands in this category is the Rinnai brand, which is known for its energy-efficient and durable tankless water heaters. Another popular brand for RV on-demand water heaters is Atwood, which offers a range of products that are specifically designed for RVs and offer reliable performance.

Other top brands in the RV water heater category include Girard, Suburban, and Eccotemp. Girard offers tankless water heaters that are known for their compact size and powerful performance, while Suburban is a trusted brand that offers both tank and tankless options for RVs. Eccotemp is another brand that is known for its energy-efficient and affordable RV water heaters.

Ultimately, the best brand for your RV on-demand water heater will depend on your specific needs and preferences. It's important to consider factors like size, energy efficiency, and overall performance when choosing a brand and model for your RV.

What are the pros and cons of on demand water heaters for RVs?

On demand water heaters for RVs, also known as tankless water heaters, have become increasingly popular in recent years. Like any other technology, they come with their own set of advantages and disadvantages.

Pros:

1. Energy Efficiency: One of the biggest advantages of on demand water heaters is their energy efficiency. They only heat water when it is needed, which means there is no standby energy loss, as seen in tank water heaters.

2. Cost Savings: Since on demand water heaters only heat water when needed, they can significantly reduce energy bills. This is especially beneficial for RV owners who rely on propane or other fuel sources.

3. Space Saving: On demand water heaters are smaller in size than traditional tank heaters, which makes them an ideal choice for RVs with limited space.

4. Endless Hot Water: On demand water heaters can provide endless hot water, as long as there is fuel available.

Cons:

1. Higher Initial Cost: On demand water heaters have a higher initial cost than traditional tank heaters. However, the cost can be offset by long-term energy savings.

2. Limited Output: On demand water heaters may not be able to provide enough hot water for multiple applications at the same time.

3. Fluctuations in Water Temperature: Since on demand water heaters only heat water when needed, there may be fluctuations in water temperature.

4. Requires Professional Installation: On demand water heaters require professional installation, which can add to the overall cost.

In conclusion, on demand water heaters are energy-efficient, cost-effective, space-saving, and can provide endless hot water. However, they come with a higher initial cost, limited output, fluctuations in water temperature, and require professional installation. RV owners should weigh the pros and cons before deciding whether or not to install an on demand water heater.

What are the safety features of RV on demand water heaters?

RV on demand water heaters come with several safety features that ensure the safety of the users. One of the most important safety features is the automatic shut-off system, which shuts off the heater when the water temperature reaches a certain level. This feature prevents the water from overheating and reduces the risk of scalding.

Another safety feature of RV on demand water heaters is the pressure relief valve, which releases the pressure inside the tank if it becomes too high. This feature prevents the tank from rupturing and causing damage to the RV.

Additionally, some RV on demand water heaters come with a freeze protection system that prevents the water from freezing in cold weather conditions. This feature is important as frozen water can cause damage to the heater and the RV’s plumbing system.

Lastly, RV on demand water heaters have a flame failure safety device that automatically shuts off the heater if the flame goes out. This feature is essential as it prevents gas leaks and potential fire hazards.

In conclusion, RV on demand water heaters have several safety features that ensure the safety of the users and prevent damage to the RV. It is important to always read and follow the manufacturer's instructions to ensure safe usage.

What is the average lifespan of an on demand water heater for an RV?

The average lifespan of an on-demand water heater for an RV can vary depending on several factors. Generally, these water heaters are designed to last for several years, with an average lifespan of 8-12 years. However, certain factors can affect the lifespan of the unit, such as the quality of the water and how frequently it is used. If the water in the RV has high mineral content, it can cause buildup in the unit, which can decrease its efficiency and lifespan. Similarly, if the water heater is used frequently or for long periods, it can wear out faster. It's important to properly maintain the unit by flushing it regularly and addressing any issues promptly to ensure it lasts as long as possible. Additionally, using a water softener or water filter can help prolong the lifespan of the unit by reducing mineral buildup in the water.

What size on demand water heater is best for an RV?

When it comes to choosing the best on demand water heater for an RV, there are a few factors to consider. The size of the water heater should be based on the number of people using it, the climate you'll be traveling in, and your hot water needs.

For a smaller RV with one or two people, a 1.5 gallon per minute (GPM) water heater should be sufficient. However, for larger RVs with more people, a 2.5 GPM or even a 4 GPM water heater may be necessary.

It's important to note that colder climates will require a larger water heater to compensate for the colder incoming water. Additionally, if you plan on using hot water for tasks such as showering, washing dishes, and laundry, a larger water heater will be necessary.

Ultimately, it's best to consult with a professional or do extensive research before making a decision on the size of on demand water heater to ensure it meets your specific needs and requirements.

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