What is the Best Tankless Water Heater?

Water heaters are used for various parts of our daily routines, such as taking a bath or doing laundry. Since not all tankless water heaters vary in price, you should choose the one that fits your needs the best.

In the tankless water heater market, there are various brands to choose from. Selecting a suitable, reliable tankless water heater brand that stands behind their products is very important. We will present and discuss some reputable brands below.

1-Rinnai

Rinnai is a well-known Japanese manufacturer in the indoor gas tankless water heater industry. They produce high-quality propane and gas-powered instantaneous water heaters for residential and commercial use.
Rinnai’s tankless water heaters are great for many purposes. Most of their tankless water heaters hold over 9 gallons per minute. Top-selling Rinnai tankless water heaters include RUC98i, NRL94eP, and RL75iN series. They have a large capacity, and the residential tank’s temperature can be up to 140 degrees Fahrenheit (F) while the commercial tank can reach as high as 160°F. However, it is important to note that all Rinnai tankless water heaters should only be installed by a professional plumber due to their complexity.

2-Bosch

Bosch instantaneous water heaters save energy, require very little maintenance and are environmentally responsible. For example, the Bosch Greentherm Model C 1050 ES comes with an Energy Factor (EF) of 0.95. It has an Energy Star rating as well.

Bosch products also have an automatic fully modulating bypass to ensure temperature stability, new venting options, an inlet water filter and a water heater mobile app.

The Therm 520 PN is another excellent model with push-button ignition and a modulating gas valve that maintains constant water temperature in varying flow rates. It is ideal for smaller households that require a maximum of two hot water outlets running simultaneously.

3-Navien

Navien tankless water heaters offer reliability, but they are not the most cost-effective option. They include two series of products, NPE-A and NPE-S, with some details below:

  • NPE-A refers to the NPE-Advanced series. This series includes ComfortFlow technology, HotButton design, and NaviLink add-on. It also features a built-in recirculation pump and buffer tank
  • NPE-S refers to the NPE-Standard series. They require less energy in the heating process; this results in electricity cost savings

The best-selling Navien tankless heaters are 110A, 180A, 240A, and 110S, 180S, and 240S.

4-Noritz

Noritz tankless water heaters are either stainless steel or copper. They have a large capacity, most of which can support multiple bathrooms or larger homes. Noritz products also produce a minimal amount of greenhouse gases.

Their top sellers are NRC661-DV-NG and NR981-SV-NG. A 93% energy rating saves customers money on your heating bills. In addition, Noritz provides a 12-year warranty on heating parts; this is an excellent value when compared to other manufacturers.

Best Tankless Water Heater

Final Insights

If you are looking for the best tankless water heater on the market and cannot decide which one to buy, we recommend the Rinnai RUC98iN Ultra Series. It offers the most robust options for natural gas water heating, has an excellent warranty, provides a great water flow of 9.8 gallons per minute and is compact enough to store anywhere in your home.

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Susanna PingitoreSusanna Pingitore

I've been a client of Cozy Comfort for 15 yrs. for any HVAC need or service.

My AC broke down in the heat wave and could not be repaired. I called and talked to Brian @ Cozy Comfort.
Explained I was looking for a specific Carrier model and a humidifier as well.
He managed to find it and had both installed by tech. Alex and his crew within a few days. They did a good job and took all garbage with them.

While being installed, other companies I had called for a quote were calling me to inquire what I was looking for. Told them too late!

During this unexpected breakdown in prime summer heat, Brian was patient, quick and fair getting the job done quickly.

These days it is difficult to give a positive review but I highly recommend dealing with Brian at Cozy Comfort for any service they offer.

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David TsuchiyaDavid Tsuchiya

I had my tankless water heater replaced through Cozy Comfort Plus. Brian was very helpful and his technician did his best to ensure the new model would fit the tight nook that the original one was in. The team installed the new heater quickly and ensured the location was clean afterwards. Overall, I was very satisfied with the installation and service.

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Jeffrey HoffmanJeffrey Hoffman

From installation to maintenance, Cozy Comfort Plus Inc. provided us with prompt, quality service. It took under a day to install our Mitsubishi split-type air conditioner in May, 2021. This week, they attended to cleaning our unit’s filters in less than a day’s notice. The technician explained how to remove, clean and reinstall the filters ourselves which will save us money down the road. I highly recommend Cozy Comfort without reservation.

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