Rinnai Tankless Gas Water Heater RSC160iN Review Smart Efficiency and Compact Design

  • Smart-Circ technology adapts to your routine, significantly reducing wait times for hot water while saving energy.
  • Compact size fits easily in tight indoor spaces, yet delivers a strong flow rate of up to 9 gallons per minute.
  • Multiple venting options provide flexible installation to suit a variety of home layouts.
  • Comes with a generous warranty: 15 years on the heat exchanger, 5 years on labor, and 1 year on parts.
  • ENERGY STAR qualified, ensuring high efficiency and lower utility bills.
SKU: B09Y9HQ6QV Category:

Description

Smart-Circ Technology: A Game Changer in Hot Water Efficiency

The headline specification on the Rinnai RSC160iN Smart-Circ Condensing Gas Tankless Water Heater is its Smart-Circ technology. This feature learns daily water usage patterns and automatically activates the recirculation pump so hot water is ready when it is needed. The advantage is twofold: shorter wait times for hot water and lower energy waste. Compared with a conventional heater that keeps a tank warm regardless of demand, that pattern-learning behaviour is where the savings come from. Short waits for hot water at multiple taps is a real convenience, especially for a household with several people.

Compact Design and Space-Saving Benefits

One aspect that stands out is its compact size. Measuring only about the size of a small suitcase, this unit fits on a wall without hogging valuable space. Unlike bulky traditional water heaters that can feel like an eyesore in utility rooms or basements, this sleek, gray-colored tankless model blends in seamlessly. This is a huge plus for anyone with limited square footage or those who prefer a minimalist setup. The multiple venting options allow for flexible installation, making it adaptable even in tricky spaces.

Super High Efficiency Plus for Consistent Performance

The heater’s super high efficiency plus rating is backed by the numbers. The system is rated for a 160,000 BTU output with a flow rate of up to 9 gallons per minute. This means it can supply hot water to as many as six fixtures simultaneously without a large drop in temperature or pressure. Running a shower, a dishwasher, and a laundry cycle at once falls inside that rated capacity. The efficiency rating is also what drives the reduction in utility bills relative to a standard tank unit.

Durability and Warranty: Peace of Mind

From a durability perspective, this tankless heater is solidly built. Unlike traditional tank heaters that accumulate rust and sediment over time, this model’s design helps avoid such issues, contributing to a longer lifespan. The included warranties, 15 years on the heat exchanger, 5 years on labor, and 1 year on parts, indicate the manufacturer’s confidence in its longevity. Warranty terms at that length are generally a reasonable proxy for build quality in this category. Professional installation is recommended, which is consistent with a product designed for sustained, reliable use.

Wi-Fi Connectivity and Control Options

Although the Wi-Fi control module is sold separately, the option to remotely manage the heater adds a modern touch. The heater is compatible with the Control-R module, which allows settings to be adjusted through a smartphone app. This feature is particularly useful for those who want to monitor energy consumption or schedule heating cycles remotely. The ability to customize settings and receive alerts brings a smart home element to water heating, something that has become increasingly desirable in today’s tech-savvy world.

Drawbacks Worth Considering

Despite many positives, this water heater isn’t without its flaws. A few limitations stand out:

  • The initial cost and installation require a professional technician, which can add to the overall expense.
  • Some users might find the lack of included Wi-Fi control frustrating, as it requires an additional purchase.
  • The unit operates on natural gas only, so homes without this fuel source will need alternatives.
  • While it handles multiple fixtures well, extremely large households might find the 9 GPM flow rate limiting during peak usage.

Comparing to Competitors

Looking at other tankless water heaters in this category, such as the Noritz NRC66DVNG or the Takagi T-H3-DV-N, the Rinnai stands out for its Smart-Circ recirculation technology and compact design. The Noritz offers similar BTU output but lacks the intelligent recirculation feature, meaning longer waits for hot water and slightly less energy efficiency. The Takagi model is comparable in efficiency but is bulkier and doesn’t provide Wi-Fi control options. The Rinnai’s longer warranty terms also give it an edge over many rivals, especially for those who prioritize long-term reliability. However, some competitors offer more affordable upfront prices or electric models for those without gas lines, which might be better suited for different household needs.

Price Performance: Is It Worth It?

Considering the advanced features, build quality, and energy savings, the unit offers good value for money. The upfront investment might seem steep, especially with professional installation and optional Wi-Fi controls, but the long-term benefits justify the cost. Energy bills tend to decrease with this level of efficiency, and short waits for hot water reduce waste. It’s a solid choice for homeowners looking to upgrade from a traditional tank heater to a modern, energy-saving alternative. For those seeking a balance between smart features, durability, and performance, this heater delivers a strong price-to-quality ratio.

Summary of Highlights

  • Smart-Circ technology provides energy-efficient, on-demand hot water circulation.
  • Compact size fits well in tight spaces and offers flexible installation options.
  • Handles up to 9 gallons per minute, suitable for multiple simultaneous fixtures.
  • Durable build backed by extensive warranties for peace of mind.
  • Optional Wi-Fi control adds smart home connectivity and convenience.

Areas for Improvement

  • Requires professional installation, adding to initial costs.
  • Wi-Fi control module is not included, which might inconvenience some users.
  • Limited to natural gas, excluding homes without this fuel source.
  • Flow rate may not suffice for very large households with heavy simultaneous usage.

Taken as a whole, the specification set describes a thoughtfully engineered water heater with several user-friendly and energy-saving advantages, though not without some practical drawbacks.

Additional information

Brand

‎Rinnai

Product Dimensions

‎9"W x 9"H

Color

‎Gray

Wattage

‎160 KW

Voltage

‎120 Volts

Maximum Temperature

‎1.4E+2 Degrees Fahrenheit

Efficiency

‎Super High Efficiency Plus

Mounting Type

‎Wall

Is Electric

‎No

Manufacturer

‎Rinnai

Item Depth

‎9 inches

UPC

‎766156016837

Part Number

‎RSC160iN

Item Weight

‎65.9 pounds

Item model number

‎RSC160iN

Item Package Quantity

‎1

Included Components

‎Water Heater, Bracket, Valves

Batteries Required

‎No

Date First Available

April 19, 2022