If you’re looking for an efficient and cost-effective way to provide hot water in your home or business, an on-demand gas water heater may be the perfect solution. Unlike traditional water heaters that store a large volume of water, on-demand heaters heat the water only when it’s needed, providing a steady and continuous supply of hot water without the energy waste. However, it can be challenging to choose the best on-demand gas water heater for your needs, as there are many different brands and models on the market.
Before making any purchase, readers should consider several factors, such as their hot water usage, the size and layout of their home or business, and their preferred fuel source (natural gas or propane). They should also look for heaters with energy-saving features, such as programmable timers and digital temperature controls. And of course, readers should also check for safety features, such as automatic shut-off switches and overheating protection.
Are you tired of running out of hot water during peak usage times? Do you want to reduce your energy bills and your carbon footprint? Are you unsure about which on-demand gas water heater is right for you? Keep reading to discover the best options on the market, and learn how these devices can improve your quality of life while saving you money.
10 Best On Demand Gas Water Heater
It is ideal for providing hot water on demand for outdoor activities like camping, RVing, and off-grid living.
This product is ideal for providing instant hot water indoors using propane as a fuel source.
Ideal for outdoor activities such as camping and RV trips, providing hot water on demand without overheating.
Ideal for providing hot water with super high efficiency and a high flow rate, perfect for indoor installation in natural gas systems.
It is ideal for providing hot water on demand in RVs, camping trips, and outdoor activities.
Ideal for outdoor activities like camping, boating and cabins to get instant hot water with propane gas.
Ideal for indoor installation, providing efficient and continuous hot water supply with natural gas and 9 gallons per minute flow rate.
The product is ideal for providing instant hot water indoors with a flow rate of 4.0 GPM and a BTU rating of 90,000.
Ideal for residential use, providing hot water to multiple points with high efficiency and natural gas fuel source.
Ideal for providing instant hot water outdoors, with a high flow rate and powerful BTU output.
1. Camplux Propane Tankless Water Heater.
The Camplux portable propane water heater is a reliable and efficient solution for those in need of instant hot water. With a quick and easy installation process, this unit provides 1.58 gallons per minute of hot water in just five minutes. To ensure safety, it is recommended that users check for gas leakage before operation and avoid using Teflon tape between the gas regulator and gas inlet pipe. In case of any issues, the manufacturer's customer service team is available to assist.
With a 3.0 PSI water pressure startup, this tankless water heater is suitable for use in rural areas, RVs, and boats. It features a magnetic water flow sensor that allows it to light up when water pressure is between 3.0-110 PSI, making it perfect for use in low water pressure environments such as camping and remote cabins.
Weighing only 14 lbs, the compact and portable design of this 6L water heater makes it an excellent companion for camping, road trips, and RVs. It provides an instant hot water shower for outdoor activities such as hiking, fishing, and beaching. Additionally, it can be used to wash pets or provide hot water for swimming pools.
This tankless water heater is rated at 1.58 GPM, providing endless hot water on demand and saving up to 89.98% on water heating costs. It is also equipped with multiple protection features such as a flame failure device, anti-freezing protection, and over-heating protection, ensuring the safety of the user and their family. The anti-freezing drain plug is designed to discharge residual water to prevent freezing in cold areas during long-term maintenance. The gas supply is automatically shut off when the high water temperature protection reaches over 167°F.
2. Gaspro Instant Hot Water Heater – Gray
The Camplux 26 litre propane hot water heater is an instant water heater that delivers a quick and endless supply of hot water for the whole house. Powered by 120V AC voltage, this water heater features an imported PCB with precise temperature control. Unlike other water heaters, it never blows hot and cold in turn, ensuring a consistent and comfortable shower experience.
The installation process of this water heater is convenient and easy. The 6.86 GPM hot water is activated by water flow, rather than water pressure, and automatically activates on water pressure between 7.0-150 PSI. The minimum activation rate is 0.65 GPM, and the maximum input rating is 180,000 BTUs. The water connection location/size is at the bottom with a 3/4 inch NPT.
The propane tankless water heater comes with a direct-current frequency conversion fan that can resist level 8 strong wind resistance. This feature ensures that the water pressure remains consistent, even in high floors.
The tankless hot water heater comes with a CSA certified balanced combustion design and a v-type stainless steel burner, providing high heating efficiency up to 89.98%. The PCB frequency conversion and temperature intelligent control make this water heater environmentally friendly and durable. This residential constant water heater saves time, money and energy while producing safe, endless hot water for the entire home.
The propane gas water heater is also equipped with considerate anti-scalding protection to avoid excessively high setting temperatures that can cause burns, especially in children. It is impossible to set a temperature exceeding 122 ℉ under normal working conditions. The water valve needs to be closed to make the water heater in standby status before you set the temperature above 122 ℉.
3. Seeutek Tankless Water Heater: Instant Hot Shower Anywhere!
Introducing the efficient and energy-saving propane tankless water heater, perfect for outdoor use. With a water pressure range of 3.0-145 PSI, maximum power output of 41,000btu/Hr, and water output per minute of 1.6GPM/6L, this lightweight and convenient heater is a must-have for outdoor enthusiasts.
Enjoy instant and continuous hot water with its advanced energy-saving combustion technology, which reduces gas consumption and noise while ensuring a continuous supply of hot water. The heater has two combustion modes for summer and winter, making it versatile for any season.
Safety is a top priority, and this water heater is CSA certified for safety with multiple safety protection settings. The overheat protection automatically shuts off the gas supply when the water temperature exceeds 167℉, while the anti-freeze protection prevents residual water from freezing when not in use or during low temperatures.
The tankless water heater has a compact and sturdy frame design, making it both space-saving and durable with a long service life. It is also easy to install and comes with a portable handle for easy carrying and hanging for outdoor use.
This instant water heater is suitable for a variety of outdoor scenarios, including RV showers, camping, pet washing, outdoor pool showers, outdoor car washing, and beach bathing. It provides hot water anytime and anywhere, making it safe, comfortable, convenient, and energy-saving.
The manufacturer offers reliable after-sales service, ensuring that they are responsible for their products. In case of any questions or product-related problems, their customer service is always available to assist their customers.
Experience the convenience and comfort of instant hot water with this efficient and reliable propane tankless water heater.
4. Smart-Circ Gas Tankless Water Heater – High Efficiency
Introducing the latest innovation in tankless hot water heaters – the Smart-Circ Intelligent Recirculation. This cutting-edge technology is designed to learn your water usage patterns and adjust its pump and recirculation schedules accordingly, providing superior energy efficiency and convenience. With the Smart-Circ technology, you can enjoy hot water on demand without the worry of running out.
This compact tankless gas water heater from Rinnai is perfect for indoor use and provides up to 11 gallons per minute, enough to power up to 7 fixtures at once. Despite its impressive performance, it's only the size of a small suitcase, making it easy to install and unobtrusive in any space.
The Smart-Circ Intelligent Recirculation is designed to be smart and durable, with multiple venting options to fit a wide array of spaces. It also comes with a 15-year guarantee for the heat exchanger, a 5-year guarantee for labor, and a 1-year guarantee for parts. While the Controlr module for WiFi control is not included, it's available for separate purchase.
To ensure that your tankless water heater is installed correctly, Rinnai recommends professional installation. Visit the Find a Rinnai PRO page on their website to locate a qualified technician in your area.
With so many tankless water heaters on the market, it can be overwhelming to choose the right one for your home. Rinnai makes it easy with their product guides, manuals, energy guide, warranty information, videos, and tables. They even offer a Ground Water Temperature Map to help you determine if this heater is optimal for your region.
5. Gasland Portable Tankless Water Heater
The GASLAND BS158 Tankless Water Heater is a powerful and reliable water heater designed for outdoor use. With a maximum power output of 41,000BTU/Hr, this water heater can produce up to 1.58 gallons of hot water per minute at a flow rate of 1.58 GPM. Its low water pressure start-up feature requires only 3.6 PSI of water pressure to start.
This water heater is perfect for a variety of outdoor scenarios such as camping, RVing, hunting, poolside relaxation, pet or horse washing, vehicle cleaning, and even for use in tiny homes, greenhouses, or cabin houses. It runs on a standard 20 lb. liquid propane tank and is equipped with an electronic ignition powered by two D-cell batteries.
Safety is a top priority with the GASLAND BS158 Tankless Water Heater. It is CSA certified and meets Canadian and US safety standards. It features over-heating protection, low water flow protection, dry combustion protection, anti-freezing protection, high water pressure protection, and a flame failure device.
GASLAND provides a 1-year warranty against manufacturing defects and lifetime customer support. The package includes the GASLAND BS158 Tankless Water Heater, a CSA certified gas regulator and hose, a 5 feet On/Off Switch Shower Head, mounting hardware, a garden hose adapter, and a manual.
To ensure safety and proper installation, it is important to note that the use of Teflon tape between the gas regulator and gas inlet pipe is not recommended. Always check for gas leakage before operation.
The GASLAND BS158 Tankless Water Heater is designed for portable outdoor use. It is splash-proof and can withstand a little drizzle, but prolonged exposure to rain or water may damage the internal components. It is recommended to use and store the water heater in a dry place. For winter storage, it is important to drain out the water by disconnecting the drain plug and storing it in a warm and dry area.
6. Propane Tankless Hot Water Heater For Outdoors
Introducing the RUINOPAR Tankless Water Heater – the perfect solution for those looking for on-demand hot water. With a maximum power output of 42,000btu/hour, this water heater provides instant and endless hot water wherever you are. Say goodbye to preheating as this tankless water heater heats water as soon as you turn on the tap, ensuring that water flows at your desired temperature. It also features a low water pressure start-up, requiring only 2.5 PSI of water pressure, and provides 1.58 gallons per minute of on-demand hot water. The heat and water flow are fully adjustable, giving you complete control over the temperature and flow rate of your water.
Safety is at the forefront of the RUINOPAR Tankless Water Heater design. The product is CSA approved, ensuring its compliance with Canadian and US standards. It comes with a regulator that automatically decreases water pressure between 2.5-145PSI, and an anti-freezing drain plug that discharges residual water to avoid freezing in cold areas or in case of long periods of non-use. The water heater also includes high water temperature protection, shutting off the gas supply automatically under unexpected flameout. With more than six protection methods, including overheating protection, antifreeze protection, flame-out protection, anti-dry protection, high water pressure protection, and low water flow protection, the RUINOPAR Tankless Water Heater ensures a comfortable and safe bathing experience.
The RUINOPAR Tankless Water Heater features a lightweight and portable design, making it easy to carry wherever you go. It's perfect for camping trips, beach vacations, or even washing your pets outdoors. You can use the handle of the gas water heater or the mounting bracket on the back to hang it, and it only takes a few minutes to install. This tankless water heater is not only convenient but also energy-efficient. With automatic ignition and flameout modes, it saves 11.5% of energy while ensuring your safety at the same time.
To ensure your safety, it's important to keep in mind some tips when using the RUINOPAR Tankless Water Heater. Avoid gas leakage caused by improper sealing of the water heater by not twining Teflon tape between the gas regulator and gas inlet pipe. Always check for gas leakage before operation.
RUINOPAR provides a 24-month warranty for the gas cooktop, and will replace a new set directly if it has any quality problems. In case of any product after-sales problems, the RUINOPAR support team is always available to provide a satisfactory solution within 24 hours. With the RUINOPAR Tankless Water Heater, you can enjoy a comfortable and safe bathing experience anywhere, anytime.
7. Rinnai Ru160in Condensing Tankless Hot Water Heater, 9 Gpm, Natural Gas, Indoor Installation
This tankless water heater is the perfect solution for those who want endless hot water flow throughout their home. Its compact design allows for easy installation and it is built to last, with a professional installation recommended for optimal performance.
Not only does this water heater provide endless hot water, but it is also energy and space efficient. Its space-saving design conserves energy by heating only when necessary, which reduces energy consumption and saves on costs.
With a hot water flow rate of up to 7 gallons per minute, this tankless water heater provides a powerful and constant stream of hot water for your daily needs.
The Circ-Logic feature allows for instant heating by pairing with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation. This feature is perfect for those who don't want to wait for hot water and want it immediately.
This water heater is built to last, and it comes with a 15-year residential warranty for the heat exchanger, a 5-year warranty for labor, and a 1-year warranty for parts. Additionally, it features Wifi monitoring for easy and convenient monitoring of its performance.
8. Instagas Classic Tankless Water Heater
Looking for a water heater that is both compact and powerful? Look no further than the FOGATTI tankless water heater. Despite being only 1/4 the size of a typical 50 gallon tank water heater, this model can produce up to 4.0 gallons per minute (GPM) of hot water with 90,000 BTUs of power – perfect for meeting the hot water demands of both kitchens and bathrooms. Plus, with integrated components, the FOGATTI water heater is designed to handle water pressure surges without the need for an expansion tank.
Not only is this water heater compact, it also heats water quickly and provides an endless supply of hot water. Thanks to its heat exchanger, the FOGATTI water heater can quickly heat water to a maximum temperature of 140℉, which is then piped directly to your shower or tap. And because it's tankless, there's no need to wait for the temperature to slowly heat up like with a traditional water heater. With an approximate output of 4.0 GPM, this water heater can produce almost 160 gallons of hot water in 40 minutes of continuous operation.
What's more, the FOGATTI tankless water heater is designed for stable and comfortable temperature control. Thanks to its advanced chip technology, the heating power of the water heater is precisely calculated and controlled at a rate of 1000/s, ensuring that the temperature difference of the water is controlled within ±2°F.
If you're looking for a water heater that is easy to install and compatible with your current water and gas pipes, the FOGATTI tankless water heater is a great choice. Most tank water heaters have exhaust vents, water pipes, and gas pipes that are universally compatible with tankless heaters, making installation a breeze. Of course, it's always important to follow local building and plumbing codes and to have the installation carried out by a licensed professional.
Finally, you can trust in the quality and longevity of the FOGATTI tankless water heater. It has been certified by the CSA in both the USA and Canada, and boasts superior safety and durability thanks to its advanced technology. FOGATTI also provides a 5 year warranty on the heat exchanger and a 2 year warranty on all other parts, giving you peace of mind and ensuring that you get the most out of your investment.
9. Marey Tankless Water Heater – Efficient & Certified.
Introducing the highly advanced and reliable CSA certified touch screen computerized safety system, perfect for all your heating needs. This state-of-the-art system features a flow activation mechanism, ensuring safe and efficient heating operations. The oxygen-free copper heat exchanger and stainless steel venting exhaust are designed to provide optimal performance and longevity.
With anti-freeze protection, this system is capable of withstanding even the harshest weather conditions. You can rest assured knowing that this system is UL listed, meeting the highest safety standards. The DOE compliance ensures that this system is energy efficient, saving you money on your electricity bills.
The LED touch screen is user-friendly and easy to navigate, providing you with complete control over your heating system. It displays important parameters such as temperature and heating mode, allowing you to customize your heating experience to your liking.
10. Fogatti Natural Gas Tankless Water Heater: Instant Hot!
For those seeking a reliable and efficient water heating solution, the tankless design of this unit is a standout feature. With no need for preheating, users can enjoy unlimited hot water without delay. Boasting a high heating capacity of 180,000 BTU and a maximum flow rate of 8.1 GPM, this model is suitable for 3-5 outlet points, making it ideal for families.
The unit's UEF rating of over 0.81 ensures a high energy conversion rate, effectively reducing energy loss. Additionally, this model is CSA certified in both the United States and Canada, attesting to its excellent quality. Built with the world's most advanced technology, it offers superior safety and durability.
The unit's built-in forced exhaust fan at the bottom ensures stable combustion and eliminates the influence of external wind, ensuring reliable performance. Its compact design also makes it easy to install.
To ensure customer satisfaction, the manufacturer offers a 30-day free replacement policy, as well as a 5-year warranty on the heat exchanger and a 2-year warranty on other parts. It should be noted that any labor costs after the initial 30-day period are not covered under the warranty.
It is highly recommended that all installations of this unit be done in accordance with local building and plumbing codes, and by a licensed professional. By following these guidelines, users can enjoy the benefits of this high-quality water heating solution for years to come.
Best On Demand Gas Water Heater FAQs
Are there any rebates or incentives available for installing an on demand gas water heater in my home?
Yes, there are rebates and incentives available for installing an on-demand gas water heater in your home. These rebates and incentives are provided by government agencies, gas utility companies, and manufacturers of the equipment.
For example, the federal government offers tax credits for energy-efficient home improvements, including the installation of on-demand gas water heaters. The amount of the tax credit varies depending on the energy efficiency of the equipment and the cost of installation.
In addition, many gas utility companies offer rebates for the installation of on-demand gas water heaters. These rebates vary depending on the location and the utility company. You can contact your local gas utility company to find out if they offer rebates for the installation of on-demand gas water heaters.
Finally, manufacturers of on-demand gas water heaters also offer rebates and incentives to encourage homeowners to purchase their products. These incentives can include cash rebates, extended warranties, and free installation services.
Overall, installing an on-demand gas water heater can provide significant energy savings and cost savings over time, and there are many rebates and incentives available to help offset the upfront cost of installation.
Can an on demand gas water heater be used for both hot water and heating my home?
An on-demand gas water heater, also known as a tankless water heater, can be used to provide hot water for your home, but it is not designed to be used as a heating system. The primary function of an on-demand gas water heater is to provide hot water for your shower, sink, and other household needs.
While some tankless water heaters can be used to supply hot water to a hydronic heating system, which uses hot water to heat your home, this is not a common or recommended practice. It is much more efficient and effective to use a dedicated heating system, such as a furnace or heat pump, to heat your home.
If you are interested in using a tankless water heater to supply hot water for your home, it is important to choose a unit that is appropriately sized for your household needs. You should also consider the energy efficiency of the unit and look for models that are Energy Star certified to help reduce your energy costs and environmental impact.
How do I choose the right size on demand gas water heater for my home?
Choosing the right size of an on-demand gas water heater is crucial to ensure that you have enough hot water for your household needs. To determine the appropriate size, you need to consider the number of people in your household, the peak hot water demand, and the temperature rise required.
The first step is to calculate your peak hot water demand, which is the maximum amount of hot water your household needs at any given time. This can be done by adding up the flow rates of all the hot water fixtures in your home that may be running simultaneously, such as showers, faucets, and washing machines.
Next, you need to determine the temperature rise required. This is the difference between the incoming cold water temperature and the desired hot water temperature. The standard hot water temperature is usually between 120-140°F.
Finally, use the flow rate and temperature rise to determine the appropriate size of the on-demand gas water heater. You can consult with a professional plumber or use an online sizing calculator to help you with the calculations.
Remember, choosing the right size of on-demand gas water heater is essential for optimal efficiency and performance. It is always better to err on the side of caution and choose a slightly larger size than you think you need to ensure that you have enough hot water when you need it.
How much does it cost to install an on demand gas water heater?
The cost of installing an on-demand gas water heater can vary depending on several factors. The size of the unit, the complexity of the installation, and the location of the installation can all affect the cost. On average, the cost of installing an on-demand gas water heater can range from $1,000 to $3,000. This cost includes the price of the unit, installation fees, and any additional materials or labor required. It's important to note that while the initial cost may be higher than a traditional water heater, on-demand gas water heaters are more energy-efficient and can save you money in the long run. Additionally, the cost of installation can be reduced if you already have a gas line in your home, as this can eliminate the need for additional gas line installation. It's always best to consult with a professional plumber to get an accurate estimate for your specific situation.
How much energy does an on demand gas water heater save compared to a traditional tank water heater?
An on-demand gas water heater, also known as a tankless water heater, can save a significant amount of energy compared to a traditional tank water heater. This is because tankless water heaters heat water only when it is needed, whereas tank heaters store and heat water constantly, even when not in use.
According to the U.S. Department of Energy, tankless water heaters can be up to 34% more energy-efficient than traditional tank water heaters for homes that use less than 41 gallons of hot water per day. For homes that use more hot water, the energy savings may be slightly lower, but still significant.
In addition to energy savings, tankless water heaters also have a longer lifespan and take up less space than traditional tank heaters. However, they can be more expensive to purchase and install upfront.
Overall, if you are looking to save energy and money on your water heating bills, an on-demand gas water heater is a great option to consider.
What are the advantages of using an on demand gas water heater over a traditional tank water heater?
On demand gas water heaters, also known as tankless water heaters, offer several advantages over traditional tank water heaters. Firstly, they are more energy-efficient as they only heat water when it is needed, unlike traditional tank water heaters that keep a large amount of water hot at all times. This means that on demand gas water heaters can save homeowners money on their energy bills.
Secondly, on demand gas water heaters are more space-efficient. They are smaller in size and can be mounted on walls, freeing up valuable floor space. Traditional tank water heaters, on the other hand, take up a lot of space and may require a dedicated utility closet.
Thirdly, on demand gas water heaters have a longer lifespan than traditional tank water heaters. They can last up to 20 years, whereas traditional tank water heaters typically last between 10-15 years.
Lastly, on demand gas water heaters provide a continuous supply of hot water, whereas traditional tank water heaters can run out of hot water if they are not sized correctly for the household's needs. This makes on demand gas water heaters a great option for larger households or homes with high hot water demand.
What is the average lifespan of an on demand gas water heater?
The average lifespan of an on-demand gas water heater varies depending on various factors such as usage, maintenance, and quality of installation. However, according to industry experts, an on-demand gas water heater can last anywhere between 10-20 years with proper maintenance and care.
To ensure that your on-demand gas water heater lasts its expected lifespan, it is important to perform regular maintenance such as flushing the system to remove sediment buildup and checking the pressure relief valve for proper functioning. Also, it is recommended to hire a licensed professional to install the unit to ensure optimal performance and longevity.
It is important to note that the lifespan of an on-demand gas water heater can vary depending on the manufacturer and model. Therefore, it is essential to do thorough research and invest in a reputable brand that offers a warranty and reliable customer service.
What is the best on demand gas water heater for a small household?
When it comes to selecting an on-demand gas water heater for a small household, there are a few factors to consider, such as the size of your household, your hot water needs, and your budget. Based on these factors, the Rheem Performance Platinum 9.5 GPM Natural Gas High-Efficiency Indoor Tankless Water Heater is a great option for small households.
This water heater can provide hot water to multiple outlets simultaneously, making it ideal for small households with high hot water demand. It has a 9.5 gallons per minute flow rate, which means you can have a hot shower while running the dishwasher or washing machine.
Moreover, it is a high-efficiency unit, which means that it can help you save on your energy bills. It has a digital display that shows the temperature setting and diagnostic codes for easy troubleshooting. Additionally, it comes with a 12-year limited warranty on the heat exchanger and a 5-year limited warranty on parts.
Overall, the Rheem Performance Platinum 9.5 GPM Natural Gas High-Efficiency Indoor Tankless Water Heater is an excellent option for small households that need a reliable, high-performing, and efficient water heater.
What maintenance is required for an on demand gas water heater?
On demand gas water heaters, also known as tankless water heaters, require maintenance to ensure optimal performance and longevity. One important maintenance task is to regularly clean the unit's heat exchanger. Over time, mineral deposits can build up on the heat exchanger, which can reduce the heater's efficiency and even cause it to fail. To clean the heat exchanger, the unit should be shut off and the cold water inlet valve should be closed. Then, the heater's front cover can be removed and the heat exchanger can be cleaned using a descaling solution and a soft brush.
Additionally, it is important to regularly inspect the unit's venting system to ensure proper airflow and to prevent carbon monoxide buildup. The burner assembly should also be inspected and cleaned as needed to prevent clogs and ensure efficient combustion.
It is recommended to have a professional plumber perform annual maintenance on an on demand gas water heater to ensure it is functioning properly and to address any potential issues before they become major problems.
Which brand makes the most reliable on demand gas water heaters?
When it comes to on demand gas water heaters, there are several brands that are known for their reliability and quality performance. However, it is difficult to name just one brand as the most reliable. Some of the top brands in this category include Rheem, Noritz, Rinnai, Takagi, and Bosch. Each of these brands has its own unique features and benefits that make them stand out from the competition.
Rheem is a popular brand that offers a wide range of on demand gas water heaters with energy-efficient features and advanced technology. Noritz is another reliable brand that offers a variety of models with high-efficiency ratings and durable components. Rinnai is known for its innovative water heating solutions that are designed to save energy and provide consistent hot water.
Takagi is a Japanese brand that has been in the business for over 70 years, offering high-quality and reliable on demand gas water heaters. Bosch is a German brand that is known for its engineering excellence and energy-efficient products.
Ultimately, the most reliable on demand gas water heater brand will depend on your specific needs and preferences. It is recommended that you do your research and consult with a professional plumber to determine which brand and model is right for your home or business.