7 Best Small Propane Tankless Water Heater 2021 Buying Guide

small propane tankless water heater

Water heaters are an integral part of a home providing hot water when needed. A tankless water heater is a great choice for your hot water needs. For fuel efficiency, propane water heaters are a great choice. This article will discuss the best small propane tankless water heater to help you determine which is best for your house or office.

What Is the Best Small Propane Tankless Water Heater on the Market?

7 Best Small Propane Tankless Water Heater for Shower Quick Review

How to Choose Best Small Propane Tankless Water Heater?

There are several tips you should take into consideration so that you can locate the best tankless water heater. It is necessary to take into consideration your personal preferences before you can proceed to invest in a tankless water heater. For example, if you would like to achieve great durability, then look for a tankless water heater that is designed to be highly durable. Here are other factors you should check out before you can proceed to buy a tankless water heater:

Digital Display

You need to have full control of the tankless water heater. The best way to have full control is to ensure you have a digital display. There are several brands of water heaters out there. Not all of them come with digital displays. It is upon you to compare the different water heaters in the market and choose one which incorporates digital display. With the digital display, it is easy to save money because you will easily set it.

Eco/Full switch function

There are some tankless water heaters that come with economical designs. You can work with such a type of tankless water heater to realize the best performance. Take time to assess the general design of the tankless water heater before you can proceed to buy. A tankless water heater which has been designed with eco-friendly design will contribute towards conserving the environment. It will also save you on the energy cost because its propane consumption will be low when compared to other units.

Anti-freezing protection

There are times when the tankless water heater will be switched off. There is a risk of the pipes freezing if it is during winter. To avoid damage to the tankless water heater, you need to buy one which comes with antifreeze protection. There are several manufacturers who incorporate the feature. Buying from such a manufacturer will avoid cases where you will be exposed to the issue of freezing pipes which can burst.

Overheating protection

There is a need to ensure you invest in a unit that will not overheat. Remember water heaters that can overheat will expose you to accidents. Take time to assess the design of the given water heater before you can proceed to invest. As a way of making your home stay safe, it is necessary to check on the general design of the water heater before you can invest.

A water heater that has been designed to eliminate the danger of overheating will reduce the chances of your house getting on fire. It will be a big mistake if you can buy a unit which will fail during winter. Check the quality of the anti-freeze protection feature before you can buy it. Some units will require certain types of maintenance, it is essential to check on the type of maintenance required before you can proceed to invest in a given water heater.

Compact and lightweight

To save on space, it is necessary to look for a unit that is compact and lightweight. The manufacturers will clearly indicate the dimensions of the given water heater. You need to check on the general design of the water heater before you can proceed to invest. A tankless water heater which has been designed to allow you to achieve the best heating while saving on space should be your choice.

CSA approved gas regulator

For safety reasons, the gas regulator should meet the highest standards. Check on the type of gas regulator which works with a given unit before buying. There are some units which incorporate several safety features but they are highly effective in helping you achieve the best results, you need to work with such units and they will contribute greatly towards helping you realize the best results in your water heating needs. Take time to compare the different water heaters available in the market and it will be easy for you to locate the best.

2020’s Top Rated Small Propane Tankless Water Heater Reviews

1. Camplux 10L Portable Propane Tankless Water Heater

outdoor small propane tankless water heater

This is a portable outdoor water heater. Best suited for people out camping with 2.64 gallons per minute flow rate, the unit can handle a single shower at any given time. This heater is fitted with two weather modes, winter mode and summer mode. The winter mode will provide hotter showers taking into account the cold weather while if you put the summer mode, the shower will be not as hot due to the warmer weather.

This unit is very efficient saving on energy, it also comes all-inclusive meaning that you do not need to buy additional parts for this unit once you buy the unit you have everything to run it.

2. Eccotemp i12-LP Water Heater

prices of propane tankless water heater

The first thing you note with this water heater is its sleek glass tampered front panel; it is aesthetically pleasing making it a great choice for people who are conscious about their heaters’ appearance and modern interiors. It is fitted with an LED display to showcase the output temperature as well as the flow rate.

It is equipped with an automatic temperature control where you can use the touch screen to make adjustments. The heater runs smoothly and has a child lock feature in case there are kids in the house. It is a very energy efficient option appropriate for small or medium homes or occasional holiday cottages.

3. Eccotemp FVI-12 Propane Tankless Water Heater

small propane tankless water heater

This is a water heater appropriate for smaller residential families due to its rather low flow rate of 3.4 GPM. It can support 1 or 2 showers at a go but nothing more than that. The unit is fitted with an LED display showing the water temperature and two knobs to the left of the screen for temperature control. You are required to work both knobs until you acquire the right temperature. One of the knobs controls gas while the other controls the temperature of the water.

The unit produces hot water between 90 and 140 degrees F; however, the temperature is dependent on the weather outside. If the incoming water is below 65degrees F, the heater can only heat it to 100 degrees F. the unit is easy to install and energy-efficient, it is however not considered user-friendly.

4. Rinnai RUC98iP Ultra Series Propane Tankless Water Heater

small propane tankless water heater review

This water heater is Rannai’s propane-fueled model; it is a powerful water heater with the power to deliver hot water wherever it is needed. It has an output of 199,000 BTUs meaning that it is capable of heating 1990 pounds of water to 100 degrees in an hour. The heater is not instantaneous but it heats water pretty quickly, you will only need to wait a few seconds.

It has a compact design that will fit anywhere with a stainless steel covering, making it aesthetically fit. The heater has low nitrogen oxide emissions, thus it is eco-friendly. It can be a bit expensive but its features are quite impressive.

5. Takagi T-KJr2-IN-LP Propane Tankless Water Heater

Takagi tankless water heater

This is a powerful propane-powered water heater; it runs very quickly and is discreet, running smoothly without producing too much noise. It has a flow rate of 6.6 gallons per minute which is enough to serve two showers at a go or a shower and some other appliance depending on your needs. It is lightweight with 38 pounds.

Proper venting is required for this heater, stainless steel is most appropriate for proper ventilation for the gases. This heater comes with a remote control that you can use to control the water temperature up to 150 degrees F. The downside of this heater is that it is a point of use unit that is installed where hot water is needed but cannot feed the whole house with hot water. If you have several bathrooms, one unit is not enough.

6. Rheem RTG-84DVP Propane Tankless Water Heater

best rheem propane tankless water heater

This propane-powered water heater is appropriate for a household with multiple uses of hot water. It is powerful with 8.4 gallons per minute flow rate enough to run two showers and another appliance concurrently. People living in colder climates may heed to wait a little longer before they can have hot water from this heater than those living in warmer areas.

It is recommended that this unit is installed outside to prevent the buildup of harmful gases. Proper ventilation is also a requirement for this unit. This unit comes with a remote control that you will use to adjust the water temperature.

7. Rinnai RL94iP Propane Tankless Water Heater

best propane tankless water heater

This is a powerful water heater that can boost 9.4 gallons per minute meaning that it can handle 3-4 showers at a go or a shower and multiple appliances. This makes this unit appropriate for a medium-sized family of 4-5 people. It is an indoor unit and comes with a digital controller that allows you to control the temperature between 98 and 140 degrees F. It also comes with an anti-freeze protection system.


Propane tankless water heaters are designed for cost-effectiveness, energy efficiency, and durability. They are fitted with major features providing convenience and comfort for your family. Choose the propane tankless water heater that best suits your needs.

It is very necessary to invest in the best small propane tankless water heater. A quick check on the best small propane tankless water heater guides you will discover several models in the market. There are some models that are built to be highly reliable. You need to invest in such models and it will be easy for you to realize the best performance.

When comparing the heating cost of propane and electricity, you will realize having a propane-powered tankless water heater can be a great way to save on energy. Here are a few things you will get from the best small propane tankless water heater guides:

Can Small Tankless Water Heaters Run on Propane?

Yes, there are some models with tankless water heaters that are designed to run on propane. The tankless water heaters which run on propane come with several features; there are others that are designed to guarantee you the best performance. You will count on them to realize the highest efficiency possible. It is also necessary to check on the efficiency of the water heaters. Some manufacturers incorporate several features that aim at making the water heaters highly reliable. Buying such water heaters can assure you the best decision.

small propane tankless water heater

How Much Propane Will a Small Tankless Water Heater Use?

It will depend on the size of your family. If you have a small family of two people, then you can run on 15 gallons for a year. There are several factors that will determine the amount of propane you can use. For example, if you are trying to heat a lot of water, then you will have to use more propane. There are also some economical units which you can rely on to realize a lot of savings as you try to heat your home use water.


TypeBest Pick
Best for outdoor showerCamplux 10L Portable Heater
Best with LED displayEccotemp i12-LP Heater
Best for small houseEccotemp FVI-12 Heater

Will Montgomery

Will Montgomery: Electro-Mechanical Engineer, Serial Entrepreneur, and Real Estate Enthusiast. Met David at Penn State, where he earned a BS in Electro-Mechanical Engineering and a minor in Business. Expertly manages capital equipment manufacturing, refurbishing, and repair businesses, while exploring opportunities in real estate and advocating for practical heating solutions.

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