Best Propane On Demand Water Heater in 2022 (Review & Buying Guide)

Sometimes it might be quite difficult to find the best propane on demand water heater. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this propane on demand water heater buying guide.

Our 10 Best Picks:

Our Favorite Propane On Demand Water Heater Reviews:

SaleBestseller No. 1
Rinnai V65eP Propane Tankless Hot Water Heater, 6.5 GPM
  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance up to 6.5 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively
Bestseller No. 2
Portable Water Heater Propane Tankless - 6L 1.58GPM RV on demand Hot Gas Outdoor Digital Display Water Heater for Camping ,Boat,Cabins
  • 【On Demand Hot Water】Maximum power output 42,000btu/hour, get instant endless hot water easily wherever you are. No need to preheat before using tankless water heater. As soon as you turn on the tap, the water flows with your desired temperature. Low water pressure start up, just need 2.5 PSI of water pressure. 1.58 gallons per minute of on-demand hot water. Fully adjustable heat and water flow.
  • 【CSA Approved Safety 】RUINOPAR Tankless Water Heater with CSA Approved Regulator, safe as per Canadian and US Standard.Automatically decrease water pressure between 2.5-145PSI. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. High water temperature protection over 167°F. Shut off gas supply automatically under unexpectable flameout.
  • 【Safety Protection】The safety of the propane water heater is also an important thing that everyone will value very much; Our products have more than 6 protection methods; The product has safety protection that measures such as overheating protection, antifreeze protection, flame-out protection, anti-dry protection, high water pressure protection and low water flow protection, which prevent the product from doing harm to users,providing a comfortable and safe bathing conditions, reliable product.
  • 【Lightweight Portable Design】Compact size and lightweight design for easily carry. It can bring a amazing hot shower for you when you are camping , to the beach, etc. Also you can wash your pets with this tankless water heater in outdoor. Using the handle of the gas water heater or the mounting bracket on the back to hang it. It only takes you a few minutes to install it.
  • 【Energy Saving】With automatic ignition and flameout modes, when you turn on the shower nozzle, the tankless water heater automatically ignites, and when you turn off the shower nozzle, the water heater automatically put out the flame; With this unique design, our heater can save 11.5% energy for you and ensure your safety at the same time.
Bestseller No. 3
Camplux 2.64 GPM Portable Propane Water Heater, Tankless Propane Gas Water Heater with Digital Display, On Demand Hot Gas Water Heater for Campings, Road Trips, White
  • Compact,Light Weight Portable Design-12.8 (L)*6.1(W)*21.65(H) inch ,Weight-23.85 lb. Compact and portable design perfect for barns,cabins,outdoor instant hot shower and road trips.
  • Easy Installation for Instant Hot Water-It only takes you a few minutes to get 2.64 gallons per minute of instant hot water. The camplux portable water heater lights when water pressure between 3.6-110 PSI, low water pressure is perfect for campings and remote cabins.
  • Multiple Protection Ensure Your Safety-Flame failure device, anti-freezing protection, over heating protection to ensure the family safety. The anti-freezing drain plug discharges the residual water to avoid freezing in cold areas for long-time maintenance. Gas supply automatically shut off when high water temperature protection over 167 °F.
  • Power Efficient & Energey Saving -Maximum power output 68,000btu/hour, you will get instant endless hot water easily wherever you are. Compact and lightweight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.
  • Important Tips -To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.
SaleBestseller No. 4
Eccotemp i12-LP Water Heater, 4 GPM, Black
  • Whole home indoor, gas powered tankless water heater, rated at 4 GPM that activates only on demand and no pilot light needed, reducing energy consumption
  • Sleek, modern design with black tempered glass front panel featuring an easy to use LED display controls
  • Features fully automatic temperature controls with an energy saving mode and child lock technology
  • Safe electronic ignition system; Plugs into standard 110v electrical outlet with UL-listed cord
  • Uses standard 1/2" NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation
Bestseller No. 5
Tankless Water Heater, Camplux Constant Propane Water Heater, 3.18 GPM On Demand Water Heater, Instant Hot Water Heater, Indoor, Black
  • 3.18 GPM Instant Constant Water Heater -Camplux 3.18 GPM propane tankless water heater delivers 3.18 gallons per minute of on-demand endless hot water ensures constant comfortable instant hot water for 2-3 persons whole house. 3.18-GPM heater is activated by water flow rather than water pressure; Minimum activation water capacity rate: 0.65 GPM-4.8 GPM; Maximum input rating: 82,000 BTUs; Water connection location/size: Bottom/0.5-inch NPT.
  • Easy Installation -The tankless propane water heater uses standard 1/2" NPT water fitting and gas inlet. The gas water heater comes with 2.3" horizontal vent pipe for convenient and quick installation,great for whole home,small cabins and remote apartments use. You can take S/S wall thimble-WT236 for perfect indoor use. You will need a gas regulator ( Camplux model KR-106A )& 1 pc 5/8" NPT male to 1/2" BSP female gas connector adapter if you want to hook this water heater up to a propane tank.
  • Modern Design,Easy Operation -The tankless hot water heater has trendy and modern design with unique black glassy front panel,easy to control the water temperature with LED touchscreen (Fahrenheit and Celsius switch optional).The compact size water heater saves more space than traditional tanks.
  • Outstanding Features- The propane instant hot water heater comes with oxgen-free copper heat exchanger and v-type stainless steel burner,high heating efficiency up to 89.98 %; 90°wind isolation design, this tankless propane water heater can anti backflow wind in high floors, the S/S 2.36 ” vent pipe exhaust harmful gases quickly.
  • 6-In-1 Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety. Fully automatic temperature controls with an energy saving mode and child lock technology.
SaleBestseller No. 6
Propane Gas Tankless Water Heater, FOGATTI Outdoor 8.1 GPM, 180000 BTU White Instant Hot Water Heater
  • We recommend that all installations of units must be done in accordance with the local building and plumbing codes of the installation location and installation be done by a licensed professional.
  • The tankless design means you don't have to wait 30 minutes for preheating and unlimited use of hot water.
  • 180,000 BTU high heating capacity and maximum 8.1 GPM. It is suitable for 3-5 outlet points, which can satisfy whole family. UEF over 0.82, the high energy conversion rate can effectively reduce energy loss.
  • Excellent quality CSA certified in the United States and Canada. Adopting the world's most advanced technology, superior safety and durability.
  • Using built in forced exhaust fan at the bottom ensures stable combustion and eliminates the influence of external wind. Compact design for easy installation.
Bestseller No. 7
TC-Home 18L Propane Gas Water Heater Tankless 4.8GPM Instant 36KW LPG Hot Water Heater
  • Capacity: 18L/min (4.8Gal), SIZE: 13.4"(L) x5"(W) x25.6"(H), 25 degrees warm water producing rate; Cover Material: Cold Rolled Sheet; Gas Type: LPG Liquid Petroleum Gas (PROPANE); Dimension : Picture 2, SIZE: 13.4"(L) x5"(W) x25.6"(H)
  • Thermal input: 36KW; Working temperature:-8-45℃; Temperature rise: 25℃; Thermal efficiency: ≥80.8%
  • Minimum working water pressure: 0.025MPa; Gas pressure: 2800Pa; Vent Type:4.3" Flue Duct;Gas pipe: G 1/2"; Water Inlet: G1/2''; Water Outlet: G1/2''
  • Automatic ignition system, Flame failure protection device; Water & gas combination unit ,Fitted with over heating and pressure safeguard; 20 min. off self-timer
  • Certification: ISO 9001:2000; Net weight: 8.5KG; Mains power not required; Electrical requirement: DC3V, Automatic electric ignition powered by two (2) size 'D' batteries (batteries not included; No electrical hook up; No standing pilot)
Bestseller No. 8
Camplux Tankless Water Heater, 2.64 GPM On Demand Instant Hot Water Heater, Propane Tankless Water Heater for Shower, White
  • 2.64 GPM Instant Hot Water -Camplux high capacity 2.64 GPM propane tankless water heater delivers 2.64 GPM on demand endless hot water ensures instant hot water for any small homes, cabins or apartments. On demand water heater only heats the water when you need it and no waiting for preheat.
  • 6-IN-1 Multiple Protection- Flame-out protection, anti-freezing protection (manual drainage needed), over-heating protection, air flow pressure switch protection to ensure the safety. Safe electronic ignition system, plugs into standard 120V electrical outlet with UL-listed cord.
  • Easy Installation -The propane water heater uses standard 1/2" NPT water fitting and gas inlet. Comes with 2" horizontal vent pipe,ensures efficient power ventilation. Minimum activation rate: 0.65 GPM; Maximum input rating: 68,000 BTU; Water connection location/size: Bottom/0.5-inch NPT. You will need a gas regulator ( Camplux model KR-106A )&1 pc 5/8" NPT male to 1/2" BSP female gas connector adapter if you want to hook this water heater up to a propane tank.
  • Compact Design,Energy saving -The compact size instant hot water heater saves more space than traditional tanks.Trendy and modern design with fahrenheit digital temperature display. Eco and Full gas switch for energy saving and get ideal hot water temperature.
  • Considerate Customer Service- Here at Camplux, customer service is everything ! We offer 24 shift hours customer service make the customer experience easy and fast through our live chat, phone support & our online helpdesk. Have a question? Give us a call at (844) 538-7475.
Bestseller No. 9
VIVOHOME 1.6GPM 6L Portable Outdoor Propane Gas Tankless Water Heater Digital Display Overheating Protection RV Camping Water Heater Easy to Install White
  • POWER EFFICIENT - The flow rate is 6L/min, which means, 1.6 gallons of hot water can be output per minute; It consumes low energy but is very efficient, which can save your energy costs and meet your various needs at the same time( It can only be installed vertically and you should try to use the product in a ventilated place.)
  • CONVENIENT - The applicable water pressure is from 3~145 PSI(≥0.8GPM); If the water pressure is below 3 PSI, the water heater cannot be ignited; The water temperature is displayed in degrees Fahrenheit(℉), which conforms to the American usage; Equipped with a portable handle, it is very convenient to use outdoors
  • SAFETY PROTECTION - The safety of the propane water heater is a vital thing that should be pay special attention to; Our product has more than 6 protection methods: overheating protection, antifreeze protection, flame-out protection, anti-dry protection, high water pressure protection and low water flow protection, which prevent the product from doing harm to users, thus providing comfortable, safe and reliable bathing conditions
  • ENERGY SAVING - With automatic ignition and flame-out modes, when you turn on the shower nozzle, the tank-less water heater automatically ignites, and when you turn off the shower nozzle, the water heater automatically extinguishes the flame; With this unique design, our on demand water heater can save energy and ensure your safety at the same time
  • WIDE APPLICATION - Our gas water heater is mainly used for outdoor hot showers, great for camping, trip to beaches or family vacations on mountains, in cabins, etc.; There is no longer cold outdoor shower, our water heater provides you a safe and comfortable hot shower at anytime and anywhere; There is a cover on top of it to prevent dust and leaves from falling in when outdoors
SaleBestseller No. 10
EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, 17 x 17 x 3.5
  • Endless on-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 17 x 17 x 3.75 inches 
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used. Save up to 50% in water heating costs according to the Department of Energy
  • EcoSmart ECO 27 Sizing; Refer to the sizing map. Requires 3x40 AMP Double Pole Breaker, 27-kilowatt tankless electric water heater ideal for providing hot water for whole home applications; provides between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
  • Warranty and Certifications; Limited Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed

Last update on 2022-08-16 / Affiliate links / Images from Amazon Product Advertising API

How to find the best propane on demand water heater?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best propane on demand water heater for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good propane on demand water heater recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the propane on demand water heater need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for propane on demand water heater to find what you’re looking for:

Brand

In some cases, the brand of propane on demand water heater is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given propane on demand water heater are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about propane on demand water heater are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare propane on demand water heater quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best propane on demand water heater can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.