Rinnai RUC98iN Ultra Heater Review : Features, Benefits, and Installation

The days of building a fire to warm up or going to the river for a refreshing dip are long past. We all like the convenience of having hot water at all times in our homes, and we’re ready to pay the price (quite a bit) for it. Is it worthwhile to have a water heating system with tanks in your home?

What’s all the hubbub about tankless water heaters?

The tankless water heaters have no tanks and provide hot water on demand. They consume less energy to heat the water and none to keep it warm because they need a tank. Because less fuel equals less money spent, tankless water heaters are extremely energy efficient.

Because there is no tank, the water is not collected anywhere and has no time to harm the pipes or the system. The calcium and magnesium in water have little time to damage the system, making tankless water heaters far more robust.

However, if you live in a region with hard water, you must also use a water softener. Because there is no tank, there is less maintenance, and most tankless water heaters only require cleaning once or twice a year, depending on the hardness of the water in your location.


Rinnai RUC98iN Tankless Water Heater


Last, tankless water heaters take up far less room than typical tank-based water heating systems. Some may require a third of the space that a standard tank would. Not only that, but you gain more storage space. Furthermore, you are not concerned with where the tankless water heater will be installed.

Some models may drain your bank account, but it’s all for a good cause. Even if you spend an extra cent upfront, the system will be worth it because it reduces your power costs for the first month.

In a nutshell, what is the best way to explain the Rinnai RUC98iN Ultra heater?

The Rinnai RUC98iN Ultra Heater stands out for its practically full functioning and steady temperature regardless of water flow rate. It has a.96 energy factor and a slew of beneficial features.

This gas-powered indoor tankless water heater is suitable for both commercial and household applications. It weighs little more than 60 pounds (61.7) and is relatively tiny, making installation easier.

Are the technical specifications?

The Rinnai RUC98iN Ultra heater is intended for both commercial and residential indoor applications. It’s small size and low weight make it ideal for storage and installation. It has a control panel with a digital display, making it much easier to handle both water and gas. The power button simplifies operation, while the temperature lock function provides safe operation near children.

The device is adaptable and may be used with PVC venting or twin-pipe systems. However, remember that the gas and water inlets/outlets are more important than most heaters in this category. The water heater only requires 2 watts of power while in standby mode. The machine consumes 64 watts when turned on, but it may require up to 146 watts during the winter. The water heater has an electronic ignition method rather than a pilot light, requiring less energy.

The minimum to the maximum gas burned rate of the Rinnai RUC98iN Ultra heater ranges from 15,200 to 199,000 BTUs. The hot water flow rate ranges from 0.26 to 9.8gpm, although the device requires 0.4gpm to activate the system. Because of its advantages, the Rinnai RUC98iN Ultra heater can support several faucets at the same time in big houses.

The temperature of the home model runs from 95 to 140F degrees, while the commercial unit has a maximum temperature of 185F. If you make the appropriate changes, you may use the group with gas and propane.

The Rinnai RUC98iN Ultra heater is compact, durable, and one of the most energy-efficient in its class. It uses virtually all energy to heat the water, with only 5% wasted. Your energy bill will also decrease when you use less energy to run the heater.

The streamlined design is discreet and offers installation flexibility. It makes no difference how much room you have; you’ll always find a suitable location for placing the unit.

The Rinnai RUC98iN Ultra heater has a high level of output at 9.8gpm. It can support five showers or water outputs at the same time without worrying about flow rate or temperature discontinuities. The Rinnai RUC98iN Ultra heater is a good solution for big families or applications requiring water.

You may imagine an active unit like this one is noisy, but you couldn’t be more wrong. On the other hand, the water heater operates softly, which only adds to the appeal for many.

What is it about the unit that we find most appealing?

We enjoy a lot of things about the Rinnai RUC98iN Ultra Heater. The following are the most important:

Rinnai RUC98iN

Rinnai RUC98iN Tankless Water Heater

    • It’s a dependable and tough machine.
    • It may be used for both business and household purposes.
    • The digital display and power button makes it simple to use.
    • It has an electronic ignition.
    • It is extremely energy efficient.
    • It is compatible with both natural gas and propane.
    • It guarantees continuous and consistent functioning.
    • It is tiny, compact, and easy to install. It operates silently.

Should you be concerned about the flaws?

We enjoy several aspects of the Rinnai RUC98iN Ultra heater; none of its drawbacks is deal breakers. Nonetheless, here are some disadvantages:

  • The temperature may sometimes dip unexpectedly, but it quickly returns to normal.
  • Because of its high GPM and heating temperature, heating the water may take a few seconds (especially if not used for a while).
  • It may necessitate maintenance and installation by Rinnai-trained personnel.

What is the unit’s ultimate verdict?

The unit is a great investment for your home because it is secure, dependable, and capable of supporting a large household. It could be better, but it checks most boxes regarding performance, dependability, strength, and durability.