Best Tankless Water Heater Reviews

Not having a water heater at all isn’t an option in any house, but when you’re looking to save some space and some money in the long run, you want to get something that’s going to help you out.

One way to do that is with a tankless water heater that helps you cut down on your overall energy consumption and your floor space over a traditional water heater.

Missy Enders, Author, HESCA
Missy Enders

#1 Takagi T-KJr2-IN-NG

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This natural gas water heater produces 140,000 BTU with a 6.6 GPM max flow rate so you can easily power a number of different products in your home with plenty of hot water. This is especially true when it comes to smaller homes and apartments as in these instances it can usually provide all of the water you need within a very quick period of time.

You’ll be able to use this ultra-small unit in just about any area of the house to get it out of the way and make sure that you’re going to have everything you need. It’s also simple to install and lightweight so you don’t have to worry about trying to cart it around before you decide where it’s going to be put in.

If you have hard water you’ll still be able to use it with no problems. You’ll even be able to take care of things relatively easy because the unit itself comes with extremely detailed manuals to help you understand what needs to be done for installation as well as any type of repairs and improvements. That means you’ll be able to do it yourself if you have the plumbing experience necessary.

  • What’s really great about this unit is that it comes with a wall mounted controller that allows you to easily adjust the temperature that you want for your water without a lot of difficulty.
  • You’ll even be able to see the water temperature of what comes in as well as what goes out and the flow rate that you’re currently getting. This is going to help you overall with deciding what types of devices you’re able to run all together without having to wait for someone to get done in the shower before you decide to head in to wash some dishes.

#2 EcoSmart ECO 27

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The EcoSmart Water Heater is designed to help you save up to 50% on the water costs that you already have and can help you control the temperature of your water in 1 degree increments with absolutely no difficulty. Not only that, but it’s extremely compact so you get plenty of space allowance around your house and no longer have to worry about that bulky water heater that probably came with the place.

You’re also going to get copper and stainless steel components that are extremely easy to install as well as replace in the event of problems or breakage down the road. What’s even better is that you can rely on these products to be efficient and to last a long time as well because they are made with higher quality materials compared to some other units.

This water heater is able to heat water that is as low as 37 degrees Fahrenheit with no problem at all and can get you almost 3 gallons of water all in just one minute. That’s even heating the water from the 37 degrees that we just mentioned so you definitely won’t have a problem getting a nice, hot shower (or more than one) even while you’re getting the dishes done.

  • You’ll get a limited lifetime warranty that means you don’t have to worry about any defects in the product and you nearly don’t have to worry about any kind of damage that occurs to it over time either.
  • You’ll be able to get someone in to fix the problem quickly and easily, especially since all the components are so easily replaceable and simple to find. This is a unit that actually adjusts the energy needed with its own self-modulating technology so you aren’t wasting energy when you don’t need it.

#3 Rheem RTE 9

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The Rheem Water Heater is slightly smaller, but produces up to 3 gallons of water per minute, which is definitely plenty for most applications including using more than one shower or running the washer and the dishwasher at the same time. You’ll easily be able to get enough heat at the same time and enough pressure as well.

Not only that but this unit has temperature controls directly on the unit to make it easier to adjust the heat that you get and the overall temperature rise. You’ll also have no problem with conserving energy because it has an active option and a standby option. When it’s not being directly used it puts itself into standby mode so you’re not wasting any energy.

You get brass and copper connectors and modules so you’re always going to have the ability to replace parts quickly and easily without hard to find applications You’re also going to have no problem with modulating the power and making sure that your water connection is just what you’re looking for.

This unit is lightweight and can fit just about anywhere, making it great for larger homes, smaller apartments and even boats or hotels. It’s going to provide you with everything you’re looking for in a water heater and will make sure that you get the water you want as quickly as possible, without having to wait for it to heat up. Overall, this is going to be a unit that takes care of everything you need whenever you need it.

  • When set to the highest flow rate you’ll be able to raise the temperature by 20 degrees and when set to the absolute minimum flow rate you can raise the temperature 100 degrees, which means you’re definitely going to have a range that you can feel comfortable with for your home.

Tankless Water Heater Buyer’s Guide

Overall Size

It may seem strange that you need to consider the size of your tankless water heater, but this is actually a very important thing to look at. You want to make sure that it’s going to have enough of a flow rate to run everything you need it to. You need to know all of the flow rates for your devices in order to make sure that your water heater is going to be able to manage it. This may require a little bit of effort on your part to make sure you’re finding the right rates and the right unit that will help you with it.

Temperature Rise

Next, you want to make sure that you’re going to get the right amount of temperature rise from your water heater. The temperature rise is how much the water heater warms up the water that is coming into it from the ground since you’re getting water directly from the ground to the source that you’re using (like a washer or shower). You need your water heater to be able to increase the temperature quickly and to the right temperature for your use or you’ll end up with cold water instead.

Energy Savings

Next, look at how much it’s going to save you over time and how much you would be spending with a traditional water heater. You’ll spend more on average for a tankless water heater than you will for a traditional one so you want to make sure that you know what you’re actually going to get in return. The energy savings from your tankless heater should be a decent amount, but you definitely want to know what that amount is going to be before you jump in and choose one.

Ease of Repair

Finally, make sure that you’re going to be able to repair your unit quickly and easily. You never know when something could go wrong and you don’t want to need a completely new water heater rather than just fixing a couple pieces that might be broken. Make sure the water heater you choose is going to be simple to repair and that it’s not going to require too many repairs as well. After all, you don’t want your brand new water heater to suddenly start needing everything replaced soon after you buy it.

Overall, a tankless water heater is definitely going to be a great choice and is going to provide you with a whole lot of benefits. By lowering your energy costs and increasing your efficiency you’re definitely going to notice the difference in your bills and with the increased floor space you’re going to love your house even more because you can do more with your own space. There are plenty of reasons that you should be checking it out and making sure that you get one installed for yourself, as soon as you possibly can.


  1. How to Select the Right Size Tankless Water Heater
  2. Tankless Water Heaters