The 7 Best Propane Tankless Water Heaters in Winter 2024

Don’t forget, winter is coming! So what would be the most crucial equipment for your home? Yes, you are absolutely right. I am talking about a water heater. Want to purchase the best propane tankless water heater? 

Just take a while to go through this article. Here, you will get the 7 best propane tankless water heaters based on some crucial factors like features, pricing, customer rating, energy star certification, and so on.  


Rinnai Propane Tankless Water Heater
Rheem Tankless Propane Water Heater


7 Best Propane Tankless Water Heaters to Warm Up Your Winter

Now, you can explore the core section of this article. Let’s discover the 7 best propane tankless water heaters including features, specifications, pros, and cons. 

Products Ideal For Pricing Details 
Rinnai Propane Tankless Water HeaterMedium & Smaller Homes  BUY NOW
Camplux Tankless Water HeaterOutdoor InstallationBUY NOW
Rheem Tankless Propane Water HeaterIndoor Installation BUY NOW
TC-Home Propane Gas Water HeaterCold Climates BUY NOW
Excel Tankless Gas Water HeaterSmall Apartments, Lofts, Flats & Mobile HomesBUY NOW
FOGATTI Propane Gas Water HeaterKitchen, Bathroom, or RV BUY NOW
Marey Power Gas Tankless Water HeaterApartments, Cabins, & Tiny HomesBUY NOW

1. Rinnai Propane Tankless Water Heater

Rinnai Propane Tankless Water Heater
Rinnai Propane Tankless Water Heater

The Rinnai high-efficiency non-condensing outdoor tankless water heater models bring cutting-edge, cozy, and cost-effective technology into your house.

This tiny water heater, which was made to be incredibly small and only takes up the area of a small suitcase, allows you to recapture some of your home’s most important space. 

Enjoy the cost-effective comfort and convenience of continuous hot water. By including models that are suitable for medium- and homes, Rinnai has increased the Value Series. 

You may save energy and precious floor space while getting the reliability and durability that only Rinnai can provide. So, the Rinnai Propane Tankless Water Heater will be the best propane tankless water heater for small and medium homes. 


  • Brand: Rinnai
  • Capacity: 7.5 Gallons
  • Power Source: Gas Powered
  • Item Dimensions (LxWxH): 17.32 x 30.51 x 12.8 inches
  • Color: White
  • Item Weight: ‎47.4 Pounds
  • Style: Propane, Outdoor Installation

Customer Reviews: 4.5 out of 5 stars (2,377 ratings)

Key Features

  • Check out the new RE180eP model for the most recent in non-condensing technology and a cleaner layout that expedites repair and installation. Original Design: Tankless hot water heater only warms when necessary to preserve energy.
  • The Rinnai non-condensing tankless hot water heater is only the size of a compact suitcase and fits in a wide range of places, but it offers up to 7.5 GPM of hot water, ensuring that you’ll never run out (5 fixtures at once)
  • Enhanced scale detection helps to prevent major, long-term damage to the unit. The heat exchanger, labor, and parts are all covered by 15-, 5-, and 1-year residential guarantees, respectively (not included).
  • Recommended Professional Installation: Visit the website’s Find a Rinnai PRO page to locate a licensed tankless water heater installer in your region. They do not advise installing a water heater without a technician’s assistance.
  • Locate Your Rinnai To find the best tankless water heater for your home, check out the product guides, manuals, energy guides, warranty information, videos, and tables.  If you want to know whether this heater will work best in your area, check out the Ground Water Temperature Map.


  • Simple-to-install
  • Ultra-compact unit
  • WiFi connectivity


  • Required professional assistance to install 


2. Camplux Tankless Water Heater

Camplux Tankless Water Heater
Camplux Tankless Water Heater

Looking for the best portable propane tankless water heater? If so, you can go for the Camplux Tankless Gas Water Heater

It is ideal for campsites, cabins, or simply around the house. Take a nice shower, wash your boat, car, or even the horses or pets.

It is ideal for use off the grid or in other places without easily available electricity because the ignition is powered by two D-cell batteries. The 3.0 to 110.0 PSI working range is appropriate for the 1.32 GPM Camplux portable tankless water heater for hard water.

The system also performs admirably with modified water systems, such as those with a 12-volt pump. Available in liquid propane only. So, the Camplux Tankless Water Heater will be the best outdoor propane tankless water heater. 


  • Capacity: 5 Liters
  • Power Source: Battery Powered
  • Item Dimensions: 14.8 x 11.42 x 4.33 inches (LxWxH)
  • Color: White
  • Wattage: ‎10.00
  • Voltage: 3 Volts
  • Style: Liquid Propane Portable Tankless Water Heater

Customer Reviews: 4.4 out of 5 stars (1,584 ratings)

Key Features

  • Lightweight, Compact, and Portable Design: The folding handle of the 10-pound portable water heater keeps it out of the way and makes it simple to set up outside.
  • Temperature Specification & Flow Rate: The temperature rise is 1.32 GPM with a temperature range of 114.8°F (46°C) at its highest point to 46.4°F (8°C) at its lowest point. Additionally, at a flow rate of 1.32 GPM, 1.32 gallons of hot water can be produced every minute.
  • Versatile Applications: The water heater’s starting water pressure is 3.0 PSI. This hot water generator, which is powered by two size D batteries, is perfect for remote and off-grid locations. There is no longer a frigid outdoor shower.
  • This tankless water heater is CSA approved and has six different types of protection. These are flame failure protection, dry combustion protection, low water flow protection, overheating protection, and anti-freezing protection.
  • Installation guidelines and package contents are as follows: 1-year warranty, 5 feet premium on/off the shower head, 5 feet gas regulator, 1 set of US-standard garden hose, and 1 installation hardware pack are included with the Camplux AY132 heater. It takes no more than 10 minutes to set up this propane water heater.
  • Important Installation Tip: Do not twine Teflon tape between the gas regulator and the gas inlet pipe to prevent gas leakage brought on by faulty water heater sealing. Before installation, read the instructions, and always check for gas leaks before working.


  • Provides various types of protection 
  • Allows outdoor shower
  • Offers a relaxing shower for your pet dog and horse 


  • Automatic shut-off time is only 20 minutes 
  • Might not be fit for all hose adapters


3. Rheem Tankless Propane Water Heater

Rheem Tankless Propane Water Heater
Rheem Tankless Propane Water Heater

A high-efficiency condensing indoor liquid propane tankless water heater designed for continuous hot water is the Rheem Prestige RTGH-RH11DVLP-2. 

In addition to providing immediate hot water, the built-in recirculation pump with auto-learning programming also only provides it when necessary. It will provide .50GPM for both the minimum flow rate and the minimum activation flow rate. 

Moreover, it offers the lowest flow activation in the industry. The SCAQMD Ultra Minimal NOx Burner satisfies the safety standards for low emissions. Flame sensors, overheat cutoff switches, gas, and water leak detectors, and exhaust and water temperature sensors are further safety measures. 

Depending on the inlet temperature, it can be used for up to 5 bathrooms. Thus, it will be one of the best water heater for bathrooms or kitchens as well.  

It has an efficiency of 199,000 BTU at.94UEF (.96EF in Canada). So, the Rheem Tankless Propane Water Heater will be the best indoor propane tankless water heater. 


  • Brand: Rheem
  • Capacity: 11 Gallons
  • Power Source: Wind-Powered
  • Item Dimensions (LxWxH): 14.8 x 17.3 x 28.7 inches
  • Color: Gray
  • Style: ‎Industry, Indoor

Customer Reviews: 3.9 out of 5 stars (5 ratings)

Key Features

  • It provides hot water without any delay or waste
  • Ensure low operating cost with high energy efficiency and water savings setting
  • Compact and space-saving design. It is perfect for a tank replacement.
  • It can be able to detect water and gas leakage by providing an error code and shutting down the unit automatically. 
  • Integrated with auto-learn programming that tracks water usage over a period of time and auto-programs to meet hot water needs at peak times. 


  • Built-in recirculation pump 
  • Gas and water leak detection system 
  • Compact and modern design with a convenient size 


  • Required professional installation 


4. TC-Home Propane Gas Water Heater

TC-Home Propane Gas Water Heater

The TC-home tankless LPG water heater is the ideal partner if you want hot water but do not want an excessively high gas cost. 

It is best suited for a one-bathroom home or apartment. It uses no power at all because there are no electrical connections or lights. This device is to excel in delivering hot water to your home whenever and wherever you want it. 

Moreover, this TC-Home water heater excels in delivering instant hot water to your faucets and showerheads. You would be pleased and satisfied with the performance of this tankless water heater from TC-Home as a less expensive option. 

There is enough hot water for everyone, so there is no need to rush to have a sufficient quantity. So, it will be a wise decision and the best propane tankless water heater for cold climates. 


  • Brand: TC-Home
  • Capacity: 4.8 Gallons
  • Power Source: Gas Powered
  • Item Dimensions (LxWxH): 13.4 x 5 x 25.6 inches
  • Material: Metal
  • Style: Automatic

Customer Reviews: 3.8 out of 5 stars (122 ratings)

Key Features

  • To reduce gas consumption and noise from burning, the heater exchanger and main burner generally use cutting-edge energy-saving and combustion technology.
  • When there is insufficient water, there is low water pressure, there is a shortage, and there are high stairs, the water control linkage valve starts the heater.
  • Various forms of vehicle protection: You will get various protection systems that will assist to quickly cutting off gas power in the event of an unplanned flameout.
  • Function for protecting against too high water pressure that automatically reduces pressure.
  • Warm and cold water can both be properly controlled by the controller’s design.
  • It is well made and thin, with a modern, stylish line design.


  • Manifold auto protection system 
  • Over water pressure protection function   
  • Magnificent thin-shaped appearance


  • Runtime only 20 minutes 
  • Not waterproof 


5. Excel Tankless Gas Water Heater

Excel Tankless Gas Water Heater
Excel Tankless Gas Water Heater

The Excel Tankless Gas Water Heater will be the perfect choice for small apartments, lofts, flats, and mobile homes. Your kitchen or laundry area will be lavishly decorated by its distinctive and lovely design.

By rapidly supplying hot water upon opening the hot water tap, the Excel heater conserves both electricity and water. The rubber diaphragm system, which presses a pin and activates a micro switch, is still used by all other tankless gas water heaters. 

On other older, less expensive devices, pressures on the order of 30 psi are required to move the rubber diaphragm.


  • Brand: Excel
  • Capacity: 1.6 Gallons
  • Power Source: PROPANE LPG GAS
  • Color: White
  • Material: Rubber
  • Maximum Flow Rate: 1.6 Gallons Per Minute
  • Style: Indoor Installation

Customer Reviews: 4.1 out of 5 stars (93 ratings)

Key Features

  • Designed with vent-free technology 
  • Included with 2 SIZE D batteries
  • Integrated with Oxygen Depletion Safety (ODS) 
  • Allows multiple Points of Use for an entire home with 2 1/2 baths
  • Outfitted with a magnetic water flow sensor that allows the unit to work at low water pressure in rural areas, RV’s, and Boats. 
  • Designed with “Low Water Pressure” Startup Technology
  • Temperature controlling system. For instance, it can produce cold water above 50°F. Also, it can take lower incoming temperatures down to 40°F by reducing the water flow rate. 


  • Suitable for multiple points of use
  • Does not require cumbersome and costly installation
  • Vent-Free appliance


  • Technical issue 
  • You may face product assembly-related issues
  • Poor customer support 


6. FOGATTI Propane Gas Water Heater

FOGATTI Propane Gas Water Heater
FOGATTI Propane Gas Water Heater

If you are looking for the best propane tankless water heater for a small space, you can for the FOGATTI Propane Gas Water Heater. This type of tankless water heater is small in size, and simple to install in new homes.

Moreover, you don’t have to wait for preheating and have unlimited access to hot water thanks to the tankless design. Also, the FOGATTI Propane Gas Water Heater will be the best propane tankless water heater for RVs. 

In both the US and Canada, CSA certification ensures excellent quality, utilizing the most cutting-edge technology available, and better durability. It might be the best whole-house propane tankless water heater. 

Most significantly, FOGATTI offers free exchange within 30 days, a heat exchanger warranty of five years, and a two-year warranty on all other parts. The labor mentioned above adds to the 31-day cost.


  • Brand: FOGATTI
  • Capacity: 4 Gallons
  • Power Source: Only Propane
  • Item Dimensions (LxWxH): 22.75 x 14.5 x 7 inches
  • Color: White
  • Maximum Pressure: 150 Pound per Square Inch
  • Style: Propane, White

Customer Reviews: 4.0 out of 5 stars (270 ratings)

Key Features

  • It is only one-fourth the size of a 50-gallon tank water heater, but it provides enough hot water 4.0 GPM at 90,000 BTU for both the kitchen and bathroom. Without the need to add an expansion tank, the tightly integrated components also provide greater safety from water pressure spikes.
  • The hot water is instantly routed through to the shower and tap after the heat exchanger quickly heats the water to a maximum of 140°F in under 2 seconds.
  • There is no need to wait for the water to gently warm up like with a tank water heater. After then, it continues to run for another 40 minutes at a rate of about 4.0 GPM, which is long enough to generate almost 160 gallons of hot water.
  • The temperature difference of the water may be carefully managed to within 2°F due to the chip’s computation and control of the heating power 1000/s.
  • The majority of tank water heaters contain gas, water, and exhaust vents that can be used universally in tankless water heaters with just a small re-layout. 


  • Smaller size with better performance
  • Stable and comfortable temperature
  • High compatibility and easy installation


  • You may face technical issues 
  • Keeps going in the air every five or 10 minutes


7. Marey Power Gas Tankless Water Heater

Marey Power Gas Tankless Water Heater
Marey Power Gas Tankless Water Heater

Marey Liquid Propane Gas Tankless Water Heater is suited for apartments, cottages, and tiny dwellings because it is made for indoor use. With this gas tankless water heater, you may save room and money on energy because of its user-friendly and environmentally friendly design.

The cordless water heater is activated by water flow rather than water pressure at 1.32 gallons per minute, with a minimum activation rate of 0.65 gallons per minute.

The heater consumes up to 60% less electricity than a conventional tank or electric water heaters since it only uses natural gas when the water is flowing. The tank functions well even with low water pressure, and installation is relatively simple.

The Marey 5-Liter Liquid Propane Gas Tankless Water Heater is a fantastic solution for apartment living, camping, and more. So, it will be the best propane tankless water heater for tiny houses. 


  • Brand: MAREY
  • Capacity: ‎5 Liters
  • Power Source: ‎Battery Powered
  • Item Dimensions (LxWxH): 4.65 x 11.42 x 17 inches
  • Color: ‎White
  • Maximum Flow Rate: 1.89 Gallons Per Minute
  • Style: Auto, Automatic, Indoor, Battery

Key Features

  • The Marey Tankless Liquid Propane Gas Water Heater helps you conserve electricity and gas during the warm months; the color is white; 10.14-pound weight
  • Battery powered: Pulse ignition for the tankless water heater is powered by two D batteries (not included).  
  • Automatic shut-off system: A number of safety sensors, including dual solenoid valves, automatic ignition, anti-dry combustion, over-pressure, over-heating, and over-pressure protection
  • Temperature control: Perfect for usage inside condos, log cabins, and compact houses; Easily regulate your temperature all year round with the summer/winter switch; Not advised for altitudes more than 2,000 feet
  • Features: Rather than water pressure, the 1.32-GPM heater activates with water flow; 0.65 GPM is the minimum activation rate. 34,120 BTUs is the maximum input rating; 6.80 to 66 degrees Fahrenheit for the minimum.


  • Eco-friendly 
  • No cords are required
  • No electrical connection required
  • Easy to install and simple to operate   


  • Required professional installation 
  • Poor customer support 


How Do You Choose the Best Propane Tankless Water Heater?

Tankless propane water heaters provide hot water solutions for a variety of uses. These versatile units can supply an entire home or be a cost-effective solution for guest accommodation. 

However, there are various models available that you can hang from a tree while camping exists. It is best to comprehend the technical aspects described below in order to make a sensible choice.

Flow Rate (GPM)

When picking the best tankless water heater for your needs, flow rate which refers to how much hot water the unit produces may be the most crucial consideration. 

Although certain European models are measured in liters per minute (l/min), there are 3.78 liters in a gallon, it is normally measured in gallons per minute (GPM). It’s crucial to realize that the heater will have to work harder and provide less GPM the colder the mains supply. 

When a heater is installed in the northern U.S. as opposed to the warmer southern regions, the flow rate can vary by several GPM. Manufacturers frequently offer comparison data to aid consumers in making purchasing decisions.

Household Size

Consumers should take their household size and the number of fixtures they need to power into account when thinking about a tankless water heater. In general, tankless water heaters take some time to heat the water to a temperature that is suitable for showers, and higher temperatures can reduce water pressure. 

Moreover, the number of simultaneous showers that a manufacturer’s water heater can power is often specified. Multiple showers can be powered more easily by units with larger. 

Can a propane tankless water heater work for a whole house?

Certainly. There are models that can give hot water to households of different sizes. The setting of the propane tank, which was described in the previous question, should also be taken into account. 

Tankless water heaters for the entire house are a terrific way to reduce your energy bills. These deliver hot water on demand to all of your home’s fixtures.

How big of a propane tank do I need for a tankless water heater?

It depends on the heater’s requirements. Those for tiny houses and camping may be able to operate for several weeks on a typical 20-pound bottle and you can go for a 40-gallon water heater.

On the other hand, for large-capacity heaters, larger propane containers are available, or a permanent tank would be necessary. In this regard, you can go for a 75-gallon gas water heater

120-gallon propane tank: If you use propane in one or two appliances, such as a stove, fireplace, clothes dryer, or tankless water heater.

250-gallon propane tank: This tank might be used to heat the entire house for a modest home, often one that is no larger than 1200 square feet.

Indoor vs. Outdoor

Tankless water heaters powered by propane can be purchased as indoor or outdoor units. Indoor tanks are tiny enough to fit in areas much smaller than a standard water tank, but it is important to take into account getting the gas supply from outside because it is nearly always kept there.

An outdoor variant may be much easier to install. The only pipe needed to enter the house is the one that distributes the hot water. It needs a supply of cold water and, of course, the gas must be connected. While some portable types require an electrical connection, most run on batteries. 

Can you run out of hot water with a propane tankless water heater?

A tankless system might still be overloaded with demand even though it cannot run out of hot water. This cannot be done with a single tap; you can take as many showers as you like and the water will remain hot.


Ventilation is essential to both the combustion process and the subsequent removal of hazardous carbon dioxide. While it’s typical to have separate ducts for each, some heaters use concentric vents, which are essentially two pipes stacked on top of one another. 

Even though concentric forms are more expensive, low-cost PVC is frequently used. Another choice is stainless steel, which is also more expensive. Although side-venting variants are also available, top-venting models are more typical.

Energy Efficiency

By efficiently converting fuel to heat energy, a high-efficiency water heater reduces energy costs. The highest efficiency rating available for some of the best propane tankless water heaters is 99 percent; as some energy is constantly lost, 100 percent efficiency is not attainable.

Moreover, the Uniform Energy Factor (UEF) is an independent measurement standard that was established by the U.S. Department of Energy (DOE) in 2017. This enables prospective purchasers to compare products accurately. The efficiency of the water heater increases with the UEF number. 

Are propane tankless water heaters worth it?

Yes, it will be a worthwhile investment to switch to a propane tankless water heater. 

“The U.S. Dept. of Energy claims that tankless water heaters are more energy-efficient than traditional water heaters and can save consumers anywhere between $25 and $107 annually. A tankless water heater will be 24% to 34% more efficient if your hot water usage is little (less than 41 gallons per day).” Source 

How long do propane tankless water heaters last?

Tankless gas water heaters should last 20 years or longer, which is twice or three times as long as tank-style heaters. The lifespans of tankless electric units are typically 7 to 10 years.

How Much Does It Cost to Install a Propane Tankless Water Heater?

A propane tankless water heater typically costs $500 to $2,000 on average. Liquid propane can be used in the majority of natural gas-powered appliances. Some could need a converter if they were made for natural gas originally. 

Additionally, propane-powered tankless heaters are available. For individuals without access to natural gas or who cannot afford rising energy prices, propane is a decent alternative. Although propane is more expensive than natural gas, it is typically less expensive than oil.

Choose the Best Propane Tankless Water Heater to Get the Maximum Energy Efficiency

With the above discussion, we hope you can decide which propane tankless water heater will be the best for you. Consider the operating environment it must work in, and then match that with the features you require. Additionally, you can be realistic about the difficulties of the installation. 

If you still have any confusion, you can check out our recommendation. According to Google Trends, you can observe that the FOGATTI Propane Gas Water Heater is more in demand and trendy. 

We always try to recommend trendy and demandable products to our readers. In this regard, you can try FOGATTI Propane Gas Water Heater because it will ensure the best and most affordable solution. 

FOGATTI Propane Gas Water Heater

Best For 


FOGATTI Propane Gas Water Heater
FOGATTI Propane Gas Water Heater


So get ready to go shopping as you’ll soon be able to enjoy unlimited hot water whenever you need it.


Finding the best propane tankless heater can be challenging because there are so many different models available. We hope that our thorough assessments have assisted you in reducing the possibilities so you may select the ideal model to meet your specific requirements.

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