rinnai vs navien

Navien and Rinnai both have a significant impact on the environment. Both are the most reliable brands in the tankless water heater market.

Navien is a global brand renowned for high-quality home appliances. It ensures the highest possible efficiency. These heaters can last you a long time because they are built from stainless steel. It resists corrosion and the build-up of residues like limestone.

Rinnai is a leading tankless water heater brands on the world market. It is perfect for the whole house and commercial. It is also capable enough to support multiple bathroom use. Our article will help you to find the right water heater for you.

How Does Navien Tankless Water Heater Work?

The water heaters heat the water when the hot water tap is open. These water heaters don’t use a storage container to store and heat the water. That’s why these are the most energy-efficient and consistent. It works by passing water through the pipes into the unit, and the unit heats the water. It is repeated every time you open a hot water tap at the sink or the shower.

Is a tankless water heater budget-friendly?

Buying a tankless water heater is higher, but it is more efficient than a storage-tank water heater. It uses less energy and saves you up to $100 on energy costs on average annually. So a tankless water heater worth it.

Are tankless water heaters better?

Tankless water heaters are environment-friendly. These can save you money and works better than traditional water heaters.

Preferably heating the water in a tank, these water heaters use gas to heat the water as it flows within a pipe. The water becomes hot instantly.

Tankless water heaters can help families cut down their water use by up to 25% and reduce energy bills by up to 50%.

Rinnai V65IN Tankless Water Heater

Rinnai V65IN Tankless Water Heater can handle high capacity and Heats water quickly. The company is widely known for producing tankless water heaters using advanced technology. It is well-known for producing kitchen appliances, heating appliances, rice cookers, flyers, and home appliances.

This water heater is suitable for both indoors or outdoors and is easy to install. It is equipped with Wi-Fi and remote controls. So, it offers you the luxury of controlling the unit from anywhere in the house.

This item comes with efficiency from 82-98% efficiency and has 120,000 to 199,000 BTUs. Its compact design allows for installation in non-traditional spaces. It is ideal for small to medium homes or remodels.

Key Features

  • Flow rate up to Up to 6.5 GPM
  • 10 years Residential Factory Warrant
  • It uses 40% less energy than traditional tanks
  • It can easily replace a 50-gallon tank


  • Save Valuable Space
  • Durable heat exchanger
  • Easy to install and use
  • Innovative features


  • Expensive

Features to consider Rinnai vs Navien

Comfort Flow Technology

The Navien company offers Comfort Flow technology. This feature provides recirculation of hot water through your supply lines. So, your water is always hot instantly, effectively eliminating all wait time. It also saves your money by reducing the water bill. This is achieved by combining a buffer tank within the unit and a built-in recirculation pump. It helps you to maintain a consistent temperature.


Buying a Navien heater can last you a long time because its heat exchangers are made of stainless steel. Both companies offer higher durability and reliability. You can use these water heaters for at least 12-15 years.


Rinnai water heater is energy-efficient and saves up to 40% more energy than other heaters with the tank. This water heater reduces CO2 emissions. So if you’re worried about environmental health and sustenance, these water heaters can be a good choice.


Navien is widely known for providing the highest efficiency in the marketplace. It claims a sufficient number of 97% efficiency, whereas that of Rinnai starts from 82%. Both brands offer high efficiency.


The Navien tankless water heater is suitable for households. It provides an equal and impressive volume of hot water. Rinnai provides compact water heaters. It is ideal for small apartments.


Both brands make the most high-efficient products on the market. Rinnai offers the tech to heat water only when you need it. This tankless water heater saves your money by reducing electricity bills.

Navien heaters are highly energy-efficient. It comes with modern technology and sturdy materials.


Rinnai heaters are more reliable than Navien water heaters. The company provides a five-year contract covering all the aspects of their models. It offers a 10-12 years warranty for its product.

But Navien offers up to 15 years warranty for its product. So, it will help if you choose a tankless water heater.


The average size of both tankless water heaters weighs around 90 pounds and is middle-sized. Navien utilises white as its primary color, looks simple, and fits nearly all the design styles. Rinnai tankless water heaters are generally dark grey, with a more modern look.


Both tankless water heaters are in the higher range. They take an average cost of up to $1,500. But they offer excellent quality and performance.


Rinnai is well known for its gas and electric tankless water heaters. It provides oil, indirectly powered, and solar models.

Navien company made every kind of water heater you can think of, like gas, propane, electric, indirect, hybrid, and solar.

Both brands provide water heaters for residential, commercial, and industrial use. You can find the best one for you according to your needs.