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Rinnai RU98IP Review – (Indoor / Condensing / Propane)


Rinnai RU98IP Ultra-NOx Condensing Tankless Propane Water HeaterThe Rinnai RU98IP 9.8 GPM Indoor Ultra-Nox Condensing Tankless Propane Water Heater, is one of the leading high-efficiency water heaters that you can install if you have limited space in your home. Or, if you are just looking for a newer version tankless water heater that is more economical.

It is important to make sure that the water heater that you are purchasing is going to meet all the criteria that you are looking for. This water heater is an energy efficient propane water heater, tankless and ultra-Nox condensing. Making this a great choice.


When you are looking at the Rinnai GPM propane water heater, the first thing that you would see is that it is tankless. Meaning that it doesn’t store water in the tank before the water is heated. On-demand is a great feature to have and will decrease the risk of having a burst water heater in your home again.

The heater is ultra-efficient. Meaning that it is economical and will use less power and gas to work. Making sure that you are saving money on your monthly utility bills. The tankless propane water heater is an indoor water heater that is actually installing really easy. It does meet all the NOx Emissions Standards from California and Texas. Also, the manufacturer offers a 12-year warranty on the heat exchanger and 5-year warranty on the rest of the parts.

This device is available in four different models and is great for medium to large size homes. If you have more than two bathrooms, it is recommended that you are purchasing more than one. These are the features of the Rinnai RU98IP propane water heater:

  • It has a total weight of 80.5 pounds
  • And, the size is 18.5 x 10.1 x 26.4 inches
  • The tankless water heater is offering Max BTU’s 199,000 with a Max Energy Factor of 0.94
  • Only for indoor installation. It isn’t a portable water heater
  • The heater is making use of Condensing Technology to ensure ultra-efficiency
  • The heater is pre-set at 120°F but can be adjusted to 180°F
  • It comes compatible with Full Line of Rinnai Digital Controllers
  • No batteries are needed for this tankless water heater

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There are a couple of reasons why the Rinnai RU98IP 9.8 GPM Indoor Ultra-Nox Condensing Tankless Propane Water Heater is recommended. These are some of the pros and benefits of purchasing and using this propane water heater.

  • Different heating options

    The great thing about this water heater is the different heat settings that you have. You can choose the heat setting that will work for your family best. It has been pre-set to 120°F, but it can be adjusted to a lower or higher temperature.

  • Comes with a great warranty

    There are three different warranties that come with the water heater. The first one is a 15-year warranty for the Heat Exchanger, 5 years for other parts, and a 1-year warranty on labor work in the residential area. Not many other water heaters have the same type of warranty that this heater has.

  • Large enough for medium to large size homes

    There are many tankless heaters on the market, but they are more suitable for smaller homes and offices. However, this isn’t the same as the Rinnai tankless water heater. This water heater is great for medium to large size homes. Making this even more efficient than to purchase two or more water heaters for the larger homes.

  • Propane Gas Powered

    No worry about high monthly utility bills. The water heater is making use of propane gas. This is making the water heater an economical pick and a money saver.

  • Adjustable temperature

    This is one of those better water heaters, where you can adjust the heater according to your family’s needs. The larger the family, the higher you want to make the water temperature. You can also set it a bit lower if you have small children and want to avoid accidents.


There are a couple of things that you should know about the Tankless Propane Water Heater. Things that people have complained about.

  • Can only be used indoors

    Just because this is a tankless heater, it doesn’t mean that this is a portable heater that can be carried around. Many people think that because this is tankless, it can be used outside as well. However, this isn’t the case, and it can only be used indoors.
    If you are looking for a heater for the outdoors, then this isn’t the heater that you should consider purchasing.

  • There are some other cheaper options on the market

    For many people, the price doesn’t matter, however, this is one of the more expensive heaters on the market. You are going to pay much more for this one, as for some of the other tankless water heaters. However, you will get value for money for sure.

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In short

If you are looking for a tankless water heater that doesn’t make use of electricity, then you should consider the Rinnai RU98IP 9.8 GPM Indoor Ultra-Nox Condensing Tankless Propane Water Heater. It has some great features and benefits. However, there are a couple of things that you should know about the heater as well. Things like the price, and the fact that this isn’t a portable water heater. In general, this is a water heater that you can purchase without any problems. Even the installation will be easy. The downside is that it is quite expensive and not everyone can afford it.

The Rinnai RU98IP 9.8 GPM Indoor Ultra-Nox Condensing Tankless Propane Water Heater. A propane water heater that is going to let you save on your utility bills. This is an indoor tankless heater and perfect for all home types. If you are searching for the tankless water heater, then this might be a great choice.

by Water Heater Mag

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