Rinnai RL75iN Natural Gas Tankless Water Heater Review

By Robert Flores / May 22, 2020
Rinnai RL75iN Natural Gas Tankless Water Heater Review

Conventional water heaters can wreak havoc in many ways. During high flow rates, the supermassive reservoir depletes faster than it replenishes and heats, squirting chilly sprays that can shake your warmed body like an earthquake. While water heaters compose a ubiquity in homes, their inefficiencies paved the way for the development of an alternative heating system-the tankless water heater.

Our Rinnai RL75iN Natural Gas Tankless Water Heater Review explores improvements on the last offering. The unit integrates a leak and scale detector and temperature lock for better safety and prevents damage. The compressed shape of a tankless water heater lacks a reservoir of standing water.

It packs a high-powered energy device and revolutionary features alien to conventional units and rivals.    

A. Compact and Sleek Configuration 

The Rinnai RL75iN unit comes with a sleek, ultramodern design that snugly sandwiches into the smallest spaces. The model features silver finishing throughout and also includes a sculpted cover.

You will not grapple with a complicated venting mechanism found in gas water heaters. Conventional gas water heater versions not only eat up chunks of space but they also obstruct the entire area with ducts and pipes dangling. The Rinnai RL75iN model sloughs off this burden for a simple approach that vents out via a single wall and roof penetration.

A superior Door Mounted Controller (Model MC-91-2US) means you can mount it anywhere. You also end scheduling the heater while relishing in hot water supply from up to three plumbing or outlets simultaneously.   

B. Advanced Safety and Troubleshooting 

Rinnai RL75iN comes at the bleeding edge of technology. The heater integrates a Digital Controller equipped with an Error Code Indicator that alerts you to potential issues rectifiable immediately. The manual offers a detailed roadmap regarding the error codes, its consequences, and available remedies.

See also  Takagi T-KJr2-IN-NG Indoor Tankless Water Heater Review

It comes with Full Line of Rinnai Digital Controllers for a variation of both residential and commercial applications. A highly developed leak detector shuts off the water to prevent property damage. A temperature lock will deter random and unauthorized fluctuations in the hot water temperature output.

Additionally, built-in scale detection mitigates the likelihood of severe damage in the long haul because of excessive scale deposits.  

C. Super Energy-Efficient 

You can spew 7.5 gallons of hot water per minute with a 35 degrees leap as its 82% thermal efficiency saves energy and money. The natural gas tankless water heater renders improved energy efficiency and has acquired Energy Star Certification for its innovatory technology specifically fine-tuned to save energy.

The system does not consume electricity to generate hot water; instead, it’s natural gas-powered. Natural gas means you go green with low emissions and fewer components allow environmental-friendly disposal. The product adheres to the California and Texas NOx Emission making it eco-friendly.

The model Rinnai RL75iN keeps hot water running on your pipes at full pelt with no malfunctions.

D. Superior Performance 

The Rinnai RL75iN natural gas tankless water heater works by heating up cold water as it flows along your pipes. Built-in sensors detect when you want hot water. The natural burner activates a heat exchanger that attunes to your preferred temperature before releasing it through the valve.

The product has won acclaim as a standard of workhorse unit. Once you install, you can forget about its operations as it runs with incredible quietness and more efficiency. Ideal for 2-to-3 bathroom homes, the 9.4 gallons unit churns out 7.5 gallons of hot water per minute (GPM).

It does not tie your hands to one application. You can bathe in soothing, warm showers, operate dishwashers and laundry simultaneously.    

E. Enhanced Output Temperature & Flow Rate  

The Rinnai RL75iN attains impressive heat output. In residential premises, you can warm up your water up to 140°F; in commercial property, this figure soars to 98°F -to– 160°F. The temperature control permits you to tweak the settings. The flow rate unpacks another stroke of luck.

See also  Titan SCR2 N-120 Electric Tankless Water Heater Review

As captured in the product’s name, the unit pumps more than 7.5 gallons per minute in your home, with enough thrust to seamlessly support multiple bathrooms and applications. You do not run into (~30 seconds) flow lulls with the Rinnai RL75iN. It works like a dream to keep hot water flowing through your taps without downtimes.         

Why should you use Rinnai RL75iN Natural Gas Tankless Water Heater? 

Natural Gas With 82% Efficiency 

The RL75iN offers a whopping 82% efficiency as it inhibits energy loss for decreased electricity bills to get hot water in your home. The high-output 9.4 gallons RL75iN model pumps out an impressive 7.5 gallons of water per minute (GPM). 

Unfussy Installation 

The compact design of the RL75iN permits straightforward installation by mounting anywhere. Vent directly to the outer surroundings using a single wall and roof penetration. The door mounted control allows quick diagnostics. Once installed by a licensed Rinnai technician, the pumps and vents function unremittingly. 

Defensive Technology 

With the Rinnai RL75iN comes with a leak detector to prevent property degradation. A temperature lock will forestall accidental and unauthorized variations in the water temperature. Additionally, a sophisticated scale detector diminishes hard water deposits, which will prolong lifespan.

Hot Water Off-The-Cuff    

As an upgraded version of previous models, the RL75iN advanced door mounted controller (Model MC-91-2US) creates a hot water powerhouse. You no longer have to schedule your daily plans bearing in mind the water heater. You can enjoy hot water 24/7 with up to three plumbing and appliance applications in one fell swoop. 

Intelligent Digital Temperature Control 

The RL75iN features a digital controller with a simple and intuitive interface that allows you to tweak the heat of your water with ease. The controller has an error code alert which detects and shows a specified code to troubleshoot defects. 

Product Benefits

•    Compact, space-saving design and door mounted controller for installing anywhere in your house

See also  EcoSmart ECO27 Electric Tankless Water Heater Review

•    Delivers a minimum of 10,300 and maximum of 180,000 BTU

•    Equipped with standard MC-91-1US digital controller with error code alerts

•    82% thermal efficiency for colossal savings on energy bills

•    Residential temperature level from 98°F – to-140°F and 98°F - 160°F for commercial use

•    Eco-friendly natural-gas with zero Ozone-harmful emissions

•    Modicum maintenance and cleaning-just flush the model once in one or two years to whittle away at calcium stockpiles in the heat exchanger  

•    Delivers up 7.5 gallons per minute for your water flow.

the negative things

•    Rinnai licensed technicians only willing to help if you bought from a specific dealer, users turn to the serviceman. 

FAQ - Frequently Asked Questions 

1.    I have a sprawling apartment w/3.5 bathroom; will the Rinnai RL75iN function efficiently?

Yes, at 7.5 gallons per minute, the dimensions of your apartment make no difference.

2.    Does it supply enough water for up to three people bathing in one go?

Yes, though the water flow rate plays a vital role.

3.    How does it differ from the traditional tank water heater?

      It does not guzzle tons of wattage to retain hot water temperature while it’s not prone to standby heat loss.

4.    Can you install outside?

No, but you can order a unit configured for the cruelest ravages.

5.    Is the model Energy Star?


Final Verdict

Overall, the Rinnai RL75iN Natural Gas Tankless Water Heater Review inducts the model for the top-of-the-line and high-end class. It’s the most exquisite choice if you dwell in a cold climate region with a natural gas heater. The RL75iN has received Energy Star approval and renders 82% thermal efficiency.

Configured in a compact and glossy design, the radiant silver case and the digital controller in front and middle blends in with kitchen and indoor interiors. For peace of mind, Rinnai’s integrates a scale and leak detector, temperature lock and digital error code indicator.

 Regular maintenance will keep minerals at bay for prolonged usability of heating elements. It delivers up 7.5 GPM water flow rate and spews ultra-low NOx emissions.    

Test PG Remove Later

About the author

Robert Flores