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Stay Warm with the Top 5 Propane Tankless Water Heaters – 2023

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There are many options if you’re considering purchasing a propane tankless Water Heater. We compiled a top-five list based on cost, customer satisfaction, maximum GPM, heating capacity (BTUs), and Energy Star certification.

These are the top five propane tankless water heaters that we recommend.

Noritz EZ111 EZ Series

In nearly six decades of business, Noritz has built a solid reputation for quality and product support. In addition to a one-year reasonable labour guarantee, a five-year limited parts warranty, and a 25-year limited warranty for its heat exchanger, Noritz offers an EZ111 tankless water heater.

Its 97% Uniform Energy Factor places it at the top of the five models, and its heating capacity of 199,900 BTUs ties into the highest of our top five models. Additionally, it has the highest gallon-per-minute rate—11.1—among our top five. It is the second most costly item on our list but not cheap. The amount of time required to warm the water increases with the size of the tankless water heater. It will take some time to get a quicker flow for the shower since this equipment requires a minimum flow rate of 0.5.

Stay Warm with the Top 5 Propane Tankless Water Heaters - 2023

Pros & Cons

  • Wi-Fi connectivity
  • Warranty
  • dual stainless steel heat exchanger

  • the longer time spent boiling the water
  • A minimum of 0.5 gpm of flow is required.
  • Professional installation is required to maintain the guarantee.

Rheem Performance Platinum 9.5 GPM Liquid Propane

With a somewhat lower GPM than the Noritz model, Rheem’s Performance Platinum 9.5 GPM liquid propane tankless water heater has the same heating capacity. It costs a little less and can heat up to four showers effortlessly.

It has a 12-year limited heat exchanger guarantee, a five-year parts warranty, and a one-year labour warranty. Its uniform energy factor is 93. The Rheem model will also send maintenance warnings to help owners remember to do planned maintenance. Rheem offers recirculation pump kits that work with this device to expedite heating time for those who dislike the waiting period associated with tankless water heaters.

Stay Warm with the Top 5 Propane Tankless Water Heaters - 2023

Pros & Cons

  • Capable of simultaneously providing three bathrooms
  • Over $2,700 in cost reductions over 12 years are anticipated.
  • Hot Start reduces chilly water blasts.

  • No Wi-Fi equipment is provided.
  • Leaks may occur if the clip connecting a copper pipe to a plastic elbow becomes loose.
  • Due to venting concerns, customers have complained that Rheem has not upheld its guarantee.

Rinnai RU199iP RU Model Series

Rinnai boasts about the modest size of the RU199iP, stating that it’s the equivalent of a little suitcase, making it an excellent option for space-conscious homes. It boasts a 199,000 BTU heating capacity, Wi-Fi connectivity, and freeze prevention.

Its GPM rate ranges from 7 to 11 and can accommodate three to seven fixtures. Besides being the most costly of our top five choices, there isn’t much to be unhappy about this device. The typical criticisms about tankless water heaters include limited flow throughout the heating process and high installation costs.

Stay Warm with the Top 5 Propane Tankless Water Heaters - 2023

Pros & Cons

  • Poor audio quality
  • Water recirculation patterns that correspond with everyday routines may be programmed using Circ-Logic Size.

  • More expensive than the majority of rivals
  • Sometimes sluggish flow;
  • costly installation

Rinnai V53DeP V Model Series

The lightweight model from Rinnai, which weighs less than thirty pounds, is suitable for two to three fixtures. If you can manage the maximum flow rate of 5.3 gallons per minute, it’s a great value at a fair price. With a 120,000 BTU heating capacity, it still has plenty of power.

In warmer areas, this style is most effective for smaller dwellings. As low as -4 degrees Fahrenheit will not cause the water heater to freeze, but any lower than that will cause problems with the heater’s operation.

Stay Warm with the Top 5 Propane Tankless Water Heaters - 2023

Pros & Cons

  • Size
  • Price
  • Dependable

  • GPMs
  • Outdoor installation only
  • Can freeze in low temperatures

Rinnai RL75eP RL Model Series

Compared to the V53De model, the Rinnai RL75eP has a higher heating capacity and may be put inside. It isn’t often apparent. Therefore, buyers should be careful while inspecting this model to ensure it can be placed inside.

It is about fifteen pounds heavier than the V53D3P and has a 180,000 BTU heating capability. What makes it unique are its 7.5 maximum GPM rate and Wi-Fi connectivity. Customers have mentioned that this model sometimes makes noise.

Stay Warm with the Top 5 Propane Tankless Water Heaters - 2023

Pros & Cons

  • both indoor and outdoor versions are available
  • Wi-Fi Enabled
  • Hirinai Water recirculation patterns that correspond with may be established via Circ-Logic.

  • habits
  • Technical glitches
  • Some noise

How to Choose the Right Propane Tankless Water Heater for Your Needs

Size of Household/Flow Rate

When considering a tankless water heater, customers should consider the size of their home and the number of fixtures they need to power. The water temperature of tankless water heaters usually takes a while to reach a comfortable shower temperature, and while the temperature rises, the water pressure may also drop. The manufacturer usually indicates the number of showers a manufacturer’s water heater can power simultaneously. Multiple batteries may be powered more easily by units with larger GPMs.

Natural Gas Availability

Propane is often more expensive and more complicated to get than natural gas. However, propane is often utilized, particularly in rural regions.

Comparing Indoor and Outdoor Installation

Not all interior installations for tankless water heaters occur. Some need to be installed outside, such as the Rinnai V series. This is crucial to remember when looking for a tankless water heater, mainly if you reside in a colder region. Temperatures below zero are unusual for outdoor tankless water heaters, although they can tolerate moderate cold.

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Motives for Purchasing a Tankless Propane Water Heater

Energy Savings

According to Energy.gov, houses that use 41 gallons or fewer per day with a conventional water heater become 24% to 34% more energy efficient when they install a tankless water heater. In households with an average daily water use of 86 gallons, that percentage is 8% to 14%.

A tankless water heater has additional upfront installation expenses, but energy savings often cover these.

Space Savings

Moving around conventional water heaters is difficult due to their large footprint. Smaller rooms may accommodate the installation of tankless water heaters. Homeowners may increase the useable living space by installing tankless water heaters in closets and other closed-off areas.

Little Maintenance

Tankless water heaters require less maintenance than traditional water heaters, which need regular draining and cleaning. Undiluted white vinegar may be used to clean and descale tankless water heaters.


Compared to traditional water heaters, tankless water heaters often have longer lifespans. Conventional water heaters have a lifetime of 10 to 15 years. However, tankless water heaters may last up to 20 years.

We examined third-party data from six significant firms to get the top solar pool cover rating. We assigned a star rating to each product based on several factors, such as:

  • Fiat (35%)
  • Mostiri Bouani (35%)
  • Thermal power unit (BTU) (15%)
  • Maximum GPM (10%)
  • Energy Star Certification (5%)

Frequently Asked Questions (FAQ)

What drawbacks might a propane tankless water heater have?

One drawback of propane is its higher cost than natural gas, yet it is the only practical option in many areas. The initial investment cost of propane tankless water heaters is another drawback. Installing a tankless water heater might be more costly than purchasing a traditional one.

Is it possible to use a propane tankless water heater for showering?

Of course. Additionally, you can operate more appliances simultaneously with a propane tankless water heater than with an electric one.

Is running out of hot water with a propane tankless water heater possible?

No, a propane tankless water heater will never run out of hot water. Tankless water heaters heat water on demand; however, the water may take some time to warm up, and the water pressure may drop while it does.

Is a complete home capable of using a propane tankless water heater?

To ensure an adequate supply, homeowners must know how much propane it will take to heat the water throughout the house.

How do I choose a propane tankless water heater that is the proper size?

The size of your home, your temperature zone, and other considerations will all play a role in selecting the right tankless water heater.

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