Tankless heaters are becoming more and more popular thanks to government rebates, credits, a reputation for efficiency and their long term conservation of water and electricity. There are various brands of tankless water heaters. In this article I’d like to shine the spotlight on Rinnai, Noritz and Bosche, three of the best brands in my opinion. It’s my goal to give you some detailed information on these brands.


Rinnai Corporation has been responsible for some of the most innovative products since the 1920. Rinnai’s US based product line has grown from spa heaters, tankless water heaters, fireplaces, hydronic air handlers, direct vent wall furnaces, portable cook tops and even commercial grade rice cookers. Rinnai Corporation is committed to the conservation of energy and the best products on the market.

The Rinnai heaters are very compact measuring in at 19 inches in width, 26 inches in height, and 10 inches in diameter. The actual hot water capacity ranges from.04 to 9.8 gallons per minute. Residential temp range on Rinnai tankless water heaters is 98 to 140 degrees Fahrenheit.

Each tankless hot water heater features digital controls that provide exact tem setting so you can set your water temp the way you feel most comfortable. These heaters will not corrode since the water is not actually stored. These water heaters actually have a life span of more than 20 years. The Rinnai RC98Hpe is considered to be a “Green” water heater since they provide lower gas emissions and they are also considered to be water conservers since there is no tank to store the water.


The vision of Noritz is to improve the way that hot water is used, and to help eliminate harmful effects that occur to our environment. They are a fairly new company in the industry compared to the others, they do have the largest manufacturing plant for tankless water heaters.

They offer products that compact and easy to install. The supply of water provided by Noritz tankless heaters is pretty impressive, at 13.2 gallons per minute. A massive advantage is the 10 year warranty on the heat exchanger, and they also provide a 3 year warranty on most other parts of the heater.

The electronic controls are pretty cool, they allow users to prevent scalding issues, and the newer models even come with alarms that go off when a certain amount of water has been used. Check out, the N-084M-DV, the N-132M, and the n-084M for heavier demand. Check out the N-69M-OD, N-063-OD, and the N-063S for simple household needs.


Bosch is a company well known for their innovative products and it is one of the top selling tankless water heaters manufacturers out there, they also have a manufacturing plant here in Charleston, South Carolina. Bosch offers a very attractive 12 year warranty, making it the longest warranty than any of their competitors.

Their tankless water heaters are specifically made to save space and they are also extremely efficient. Bosch tankless heaters deliver more than 7 gallons of water per minute, ensuring you do not run out of hot water.

Bosch tankless heaters are light weight, they also have freeze protection built in with a 120 volt electronic ignition. What Bosch has to offer is definitely premium quality.

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