Best Tankless Water Heaters
By Joanna Clayton · Dec 15, 2022
4 Best Tankless Water Heaters
Best portable water heater
Hike Crew Portable Propane Water Heater
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Highly efficient water heater
Ecosmart Eco 27 Tankless Water Heater
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Best budget tankless water heater
Rheem 18kw Tankless Electric Water Heater
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All the details for our Product picks4 of the Best Tankless Water Heaters
Each product’s warranty depends on how you used it and what caused the damage. However, if you notice any issue with your heater within the first 30 days after receiving it, you can report the issue and request a replacement or a full refund for the water heater.
Since this is an outdoor heater, it can adapt to any water source. Whether you use water from a tap or fetch the water from the lake, the heating process will continue as usual. This aspect makes it suitable for any outdoor trips and family camping endeavors. However, you should ensure you connect the hose to a bucket or a holding container that can hold a minimum of five gallons of water.
The unit supplies hot water at about 2.2 liters per minute flow rate. You can get water from the spigot or connect the shower head attachment for a hot shower. When using the showerhead, you will notice three different spray patterns, and you can use either or switch it up from time to time.
We have found this portable heater to be very convenient since it comes with all the necessary attachments. You will receive the AC/DC and 12V adapters, pump hose, showerhead attachment, power adapter, gas regulator, and bag to carry all the items. However, you can add a shower tent, portable toilet, and a propane tank for a complete experience. These come as separate additions.
Generally, this heater uses propane gas to heat the water. However, it needs a 12V power supply to power up the system and run the process. Therefore, you need to connect the gas supply, then use your adapter to connect to a generator or car output, and your heater will begin functioning.
Pros & Cons
- Minimal power consumption
- Saves space
- Sleek display
- Great safety features
- Requires two energy sources
- Not for large-scale use
The EcoSmart company offers a lifetime of warranties for their electronics. However, this does not cover the labor costs or incidences that harm the product while in your care. If you notice any product malfunction within the first 30 days, you should contact the manufacturer for a replacement or a full-price refund.
Hard water has very little effect on a tankless heater because the unit rarely holds any water. However, minimal sedimentation may happen over time and can reduce the system’s efficiency. Therefore, softening the water will improve the heater’s lifespan and protect your general plumbing when using the water heater.
The Eco 27 has a flow rate ranging from three to six gallons per minute, depending on the temperature of the incoming water. If the inlet’s water temperature is very low, the heater uses more energy to heat a small amount at a time. However, if the surrounding is warmer, the water takes a short time to heat up, thus enabling the unit to heat more water at a time.
The heater usually comes on its own unless you request some complementary parts. Some common additions people ask for are the pressure valve and scale inhibitor. These two parts are essential in maintaining a constant hot water flow in your home when the water heater is in use.
The Eco 27 is a 27kW electric heater that needs three 40-amp double pole breakers. You also should ensure that you have a 200-amp electrical panel. The unit doesn’t require any additional battery and only needs the proper wiring and connection to a power supply.
Pros & Cons
- Highly efficient
- Saves space
- Constant hot water supply
- Saves time
- Remote controlled
- Reduced flow in low temperatures
- Requires a high voltage
When you purchase this heater, we recommend examining it and testing its effectiveness within the first few days. If you notice any defect, you are free to return it to the manufacturer and request a replacement or refund. However, once the unit stays in your home for more than a month, you cannot return it.
As with many other tankless models, hard water has no significant impact on this unit. If you live in an area with hard water, you may invest in a water-softening unit for the sake of the rest of your plumbing. Nevertheless, the heater functions appropriately, no matter the kind of water passing through it.
The Rheem RTEX-13 model has an average flow rate of 3.57 GPM. However, it has a water-saving shower head with a flow rate of 1.5 GPM, which is quite low for some households. You should ensure you install faucets that do not exceed this rate to ensure you enjoy a reliable hot water supply.
In normal circumstances, the packaging only consists of the water heater. However, upon request, you can purchase some additions, like the brass pressure valve and a scale inhibition system. The two components ensure you enjoy the correct water pressure and reduce the contaminants in the water when using the water heater.
This Rheem RTEX-13 model uses electrical power. It has a 13kW wattage and requires 240 volts to run efficiently. Since it already has an inbuilt battery, you do not need extra batteries. You should also ensure you have about 60 amps for proper temperature control.
Pros & Cons
- Constant hot water supply
- Energy efficient
- Friendly return policy
- Easy installation
- Reduced flow rate
- No temperature accuracy
Your warranty efficiency will depend on your usage of the heater. Other factors, like where you bought the product, may also determine whether your warranty will be valid or not. Therefore, you need to consult the manufacturer for detailed information and guidance on the warranty on the water heater.
Hard water rarely affects the heater because the water is always in motion. This ensures a minimal chance of leaving sediments in the system that might cause clogging or a malfunction. However, over time, the unit requires maintenance and cleaning to ensure that it keeps functioning at its optimum level.
This unit supplies hot water at about 9.8 gallons per minute. The water gets heated as it passes through the system, thus giving you as much hot water as you need. You can also get an endless supply of hot water from different facilities at the same time.
The packaging usually comes with the heater only, but upon request, you may purchase a pressure valve and inhibition inline water system. You can also request the manufacturer to add the Wi-Fi module to enable you to connect your heater to your home’s internet network.
The Rinnai V94iN uses natural gas and propane. You can ask for a conversion kit to allow you to use propane instead of natural gas. However, most people power the heater using natural gas, which is more common and affordable. You do not require electrical power or batteries to run the unit.
Pros & Cons
- Endless hot water supply
- Energy efficient
- Saves on space
- Gas-only power supply
- No accompaniments
- No-return policy
List of all Best Tankless Water Heaters for your needs
|Hike Crew Portable Propane Water Heater||12/2022||$ 279.99||Buy|
|Ecosmart Eco 27 Tankless Water Heater||12/2022||$ 513.91||Buy|
|Rheem 18kw Tankless Electric Water Heater||12/2022||$ 299.00||Buy|
|Rinnai V94iN High-Efficiency Tankless Water Heater||12/2022||$ 977.09||Buy|
How do I take care of my water heater?
Water heaters require care for them to have a long lifespan. We advocate following the manufacturer’s instructions to ensure that you get the maximum benefit from the product. The first step is to purchase the appropriate product size for your home and water needs. You should also follow the brand instructions during installation. If you are not an expert in installing water heaters, it would be best if you used the services of a professional to ensure you do everything right. You should also perform a test run immediately after installation and ensure everything is working appropriately.
Flushing the water heater once a year is crucial in keeping the system operating optimally. Over time, mineral buildup can cause clogging and corrode the system’s interior, thus causing reduced efficiency. When flushing, you need to turn off the power source and detach the valves. Then follow the manufacturer’s instructions to run water through the system for a while.
You can also use the services of a professional plumber to inspect and do the necessary repairs to keep the unit serving you for longer. When you service your heaters annually, you enjoy fewer breakdowns and less costly repairs. In the long run, this saves you a considerable amount of money.
What to consider when purchasing a tankless water heater
No matter how fancy or pocket-friendly a water heater seems, you should not purchase it blindly. You need to counter-check the requirements and see whether it fits your needs. The first thing you need to know is the kind of power supply the heater requires. Most heaters use either natural gas, propane, or electricity. Ensure that you have the needed energy source before bringing home the heater. When it comes to electric power, check the heater’s power supply requirements to confirm whether your home can comfortably supply that amount. If the heater requires a higher voltage than is available, it might not produce sufficient heating for all your household needs. However, a higher voltage in your home might damage the heater significantly.
Another item to consider is your household needs. You need to call a plumber to help determine the fixture’s flow rate and whether it corresponds with what the heater can comfortably supply. Having a higher flow rate will prevent you from getting enough hot water, and you might not be able to use more than one fixture simultaneously. This is a significant inconvenience, especially for large households.
Apart from the flow rate, you should also consider how many people may require to use hot water at the same time. If you have a higher demand for hot water, you need to find a large heater. Buying a small one to save on cost will strain the unit and cause a short lifespan. However, buying something bigger than what you need will only make the unit inefficient, and it will operate below its capacity.
Before you purchase a water heater, ensure that you have qualified personnel to perform installations and general maintenance. You shouldn’t buy a product that will cause you sleepless nights due to a lack of professional services. If you are not sure whether the technicians near you can do sufficient work, go to the manufacturer’s website and look for the pros they have near you. You can also ask the seller for this piece of information.
Finally, you need to check the physical size of the heater and look for an appropriate location before bringing it to the house. Go through the manufacturer’s website, and confirm the accurate dimensions of the unit and the conditions necessary for storage. After that, look for the best place, and prepare the area. You should also clear the site of any clutter and create some extra room for ventilation. Whether you want to mount it on the wall or place it on the ground, ensure it is away from your children’s reach.
What tankless water heater size suits my home?
Before you purchase your tankless heater, you need to know if it’s the best fit for your home. All brands make different sizes of heaters to ensure they serve various needs. Despite the physical size and price, you should ensure that you understand its capacity before buying. We advise getting professional assistance from a trained expert who can help you calculate your household requirements and if your desired heater can function optimally.
For example, if you have a rental apartment, you need a tankless heater with a high capacity that can supply adequate water to multiple users at a time. This is because you might find several residents needing hot water or taking a shower at the same time. Therefore, your preferred heater should be one that can guarantee enough heated water for as long as the fixtures keep running. Getting a small heater will cause inconveniences since it will produce water at a lower temperature than you would like.
On the other hand, if you need a heater for a small household, you should not go for one that has excessively high capacity. The bigger heater will cost you more money, and you will underutilize its function. In the long run, you will pay higher energy bills due to its consumption while only using a small portion of its capacity.
Therefore, you need to consult the manufacturer or an expert plumber and let them help you decide on the best fit for your needs. You will enjoy adequate heating, reduced energy bills, and a long-lasting heater. You also avoid frequent heater repairs due to overuse or inefficiency. It is essential to research different brands and read reviews about their products to get firsthand information on what to expect from their heaters.
Having various choices ensures that you make the best decision and avoid investing in the wrong heater. Once you know the right size, you can compare the physical size, affordability, appearance, and warranty offered by the manufacturer.
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Last updated on Dec 15, 2022