7 Best Outdoor Tankless Water Heater in 2022

Are you planning to change your heater? Let’s move to outdoor tankless water heaters to save extra space. They are ideal for modern households and perfect for people living off the grid. You will never drain out of warm water and do not need to worry about high bills as long as you choose the best outdoor tankless water heater. These heaters are pro in saving energy as well as time. You cannot ignore their functionality in intense weather as they can provide you with hot water instantly after opening the faucet in seconds. So, let’s replace the conventional heater to save time, money, and space.

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Best Outdoor Tankless Water Heater Buying Guide

Choosing the best outdoor tankless water heaters is not complicated as long as you know the essential features to consider. Here we have mentioned some mandatory considerations to make your choice easy and worthy.

1.     Portable or fixed

It would be best to ask yourself whether you want a portable water heater or a unit that gets fixed permanently. Most exterior tankless water heaters are portable. You can bring the unit to the campgrounds and never bother about cold showers again.

Portable units usually have a low GPM (gallon per minute) flow rate. On the other hand, fixed water heaters are for families who are not traveling freaks. These heaters usually run on natural gas and provide a higher GPM rating for optimum consumption.

2.     Fuel type

Fuel type can depend on the rate of consumption. The best outdoor tankless gas water heaters are more cost-effective in the long run because of their low price.

However, if you do not use hot water in large quantities, you can get a hand on the electric water heater as they are generally easy to install, but they make a big difference in your monthly billing.

3.     Size and location

Location is an important factor to consider. If you want to place the heater at a high altitude, you need a device compatible with extreme temperatures.

Moreover, you also need to carefully determine the size and requirements you have. Generally, it depends on the number of family members utilizing the device.

4.     Water Heater Capacity

Although it is a tankless water heater, you must know its capacity of it. That means how many faucets your water heater can serve at a time without putting any change to the temperature. Many units come with such information placed at the unit that how many showers and faucets can run at a time.

It depends upon the weather conditions too. In case it is not specified, you can check it yourself.

5.     Weather Shield

The weather shield is important for any outdoor water heater; they must be sturdy too. Mostly, during cold weather conditions, there must be freeze protection in the unit to ensure its functionality.

Along with that, as they are installed outside, they must be rust-free too in order to prevent any corrosion from rain, sediment, or dew.

6.     Energy Efficient

The more energy-efficient the water heater is, the less will it cost. The gas heater is the common one and uses propane as a fuel source. Make sure your heater is not the one that costs you a lot. In the case of an electric water heater, if you find any unusual addition to your electric bill, it indicates that the unit needs to be checked.

7.     Heating Time

It refers to the time that your unit takes to provide the hot water. Make sure to check the time that a unit taking for the water heating process. Usually, the heating is considerably less when a tankless water heater is installed right outside of the bathroom.

 In case the water heater is placed far, then it is more likely that the hot water is getting wasted. This happens because the time that the water takes to reach the faucet might decrease the warmth of the water.

8.     Water Temperature

If the water temperature is below 50 degrees F, then you might go for a gas-powered water heater because they are more powerful as compared to electric heaters. This is because the electric heaters are not capable of increasing the temperature after a certain limit, a possible downside for them.

9.     Warranty

Reading outdoor tankless water reviews may give you a comprehensive idea about the unit’s life expectancy. Some manufacturers provide a warranty of around 10 to 20 years, while others may only provide a guarantee of 1 or 2 years.

Moreover, some brands do not bother to honor the unit with a warranty. The benefit of a warranty is that you can get it repaired or replaced in the mentioned period for free.

Our Top 7 Best Outdoor Tankless Water Heater Review

1. Rinnai V53DeN Tankless Hot Water Heater

Rinnai V53DeN is one of the best outdoor tankless water heaters that offer you a continuous stream of hot water even in intense weather. Its high performance of 5.3 gallons per minute makes it ideal for a large family.

This unit utilizes liquid propane as fuel and guarantees an endless supply of hot water for the entire house at the temperature set by the user.

The compact design saves space and gives an aesthetic look. Moreover, it is only space but also energy efficient and can save thousands for you annually because it is hot on demand.

This unit is lightweight and easy to use, but it requires professional assistance for installation.

2. Bosch Electric Mini-Tank Water Heater

If you are willing to get a unit that can minimize the delivery time, a Bosch mini-tank water heater would be the best choice. Its compact design allows you to install it outdoors as well as under the sink near your faucet.

Its sleek and attractive design easily blends with the existing décor when installed in the visible location.

The mini water heater is insulated with CFC-free foam for maximum energy efficiency, and the glass-lined tank is highly durable and corrosion-resistant.

This battery-powered water heater is lightweight and easy to install. Its small design allows you to install it near the faucet and minimize the delivery time. The best thing about this device is that it comes with a 6 years warranty that allows you to get it replaced and repaired in the warranty period.

3. Camplux Pro BD158N Tankless Propane Water Heater

It is one of the best outdoor propane tankless water heaters which provide you with point hot water. Camplux Pro BD158N water heater’s compact design makes it easy to install as well as carry.

This portable water warmer is best for road trips, camping, and outdoor showers. It’s functional even in intense weather, so that you can install it in the barn and cabin for instant hot water showers for dogs or horses.

This unit provides you with exceptional features at an affordable price. Moreover, it keeps a check on your budget until it runs.

Its compact and lightweight structure is equipped with 11.5% energy-saving technology. This unit comprises advanced technology that ensures the safety of units and users with anti-freezing and overheating protection features.

4. Eccotemp L5 Portable Outdoor Tankless Water Heater

If you like traveling, but an intense cold cancel your plan, then you definitely need to consider Eccotemp L5.

It is the best outdoor tankless water heater that can provide an instant and endless stream of hot water. Lightweight, compact, and easy to carry design make it ideal for hunting or camping.

The primary power source of this unit is liquid propane, but it requires electronic ignition. Its straightforward controls make it easy to operate, even for beginners. It comprises two separate dials for adjusting water temperature and fuel expenditures.

Moreover, this propane tankless water warmer has a wide temperature range which rises to 140 degrees F, but 110 degrees is comfortable for many folks.

5. EcoSmart ECO 11 Electric Tankless Water Heater

If you do not want to get a propane or gas water heater, you should give EcoSmart ECO 11 a try. It is an energy-efficient unit with a thermal efficiency of 99%. Unlike conventional heaters that consume energy 24 hours to keep the water warm, it provides instant on-demand hot water.

This electric water heater provides 1.3 to 3.2 gallons per minute, depending on the inlet water temperature.

However, it can provide a continuous stream of hot water for the bathroom, kitchen sink at the same time. Its compact and sleek design can be installed on walls or at the point of use.

6. Fogatti 5L Portable Water Heater

Fogatti is the outdoor gas tankless water heater that provides you with an endless stream of hot water with minimum energy consumption.

It is easy to fix and does not require professional assistance. The portable design makes it ideal for mobile life as it is lightweight, sturdy, and easy to carry. You can take it with you for camping, hunting, or to barns for instant pet showers.

The best thing about this unit is that it has a digital display that shows the water temperature. Moreover, with its three knobs, you can adjust temperature, water flow, and winter or summer options.

This is the best outdoor propane tankless water heater that ensures your as well as device’s safety with its overheating protection, anti-freezing protection, high water pressure protection features.

7. Gooble Tankless Water Heater

Gooble is the best outdoor tankless water heater that aims to reduce gas consumption and burning noise. It is made of durable material and comprises many protection features like anti-freezing and overheating to ensure safety.

The lightweight and compact structure are featured with energy-efficient technology, which makes this unit budget-friendly. This is a portable water heater with an easy installation process that you can carry with you wherever you go. Moreover, it provides 5.3 GPM, ideally functional for large families.

Conclusion

Tankless water heaters come with a bunch of advanced technologies as they are energy-efficient, cost-saving, and give high performance. However, it is very important to take into consideration all your requirements at once and choose the unit in the light of them. The best outdoor tankless water heater lives up to your expectations if chosen carefully. In order to make your selection easy, we have mentioned some best water heaters that you can consider

FAQs

Two factors play a major role in determining the correct water heater’s size, flow rate, and temperature rise.

First of all, figure out how many gallons per minute your fixture uses per minute. For instance, a shower uses 2.5 GPM and the faucet 0.75 GPM. So, the best flow rate for an outdoor tankless water heater would be 3 GPM.

Secondly, determine the required temperature and compare it with your ground temperature. For instance, you want the water to be 110 degrees Fahrenheit and the groundwater temperature to be 60 degrees Fahrenheit. Similarly, both factors change with your water requirement.

Tankless water heaters are designed to provide on-demand water heaters instantly as you turn on the faucet. The heating element is generally placed at the outflow pipe so you can get warm water.

It is designed with the mechanism that the coming cold water passes through the heating element and provides hot water. You can get a continuous stream of hot water with a tankless water heater.You will never drain out of hot water unless you turn the faucet off.

 Best outdoor tankless water heaters comprise a built-in freeze protection feature. The heater activates this feature as the temperature drops down. However, if your heater does not have this feature, you can take the following measures.

• Install the water heater at a warm place or far from the cold draft
• Install a recirculating system
• Run hot water from the system
• Wrap the pipes and valve with a heating cable within a built-in thermostat
• Drain your outdoor unit.

Generally, a tankless water heater can run for 20 years. However, manufacturers do not guarantee a life expectancy of more than 10 years. A water heater can last for more than 20 years with proper maintenance.