Rinnai Service in Sharonville with Knochelmann Service Experts

More homeowners and business owners choose Rinnai than any other tankless water heater brand. They choose us for our 100-year commitment to quality, for our industry-leading warranties, and because we’re the first major tankless brand to manufacture in the U.S.A.

Tankless Water Heaters

Upgrade Your Home; Upgrade Your Life

Rinnai tankless hot water heaters are built to commercial-grade standards and each individual unit is tested for quality. So you may never need our industry-leading warranty and legendary support for the most important appliance in your home.

Technology to Improve Your Lifestyle

Select models have the Rinnai Smart-Circ™ Intelligent Recirculation™ that learns your hot water usage pattern and schedules your recirculation accordingly, providing you with hot water faster and when you need it. With the additional purchase of a control-r™ module (compatible with most condensing models), you can integrate it into your smart home technology for greater control and have on-demand hot water in seconds.

Reliability You Can Count On

Every Rinnai tankless water heater is individually tested for quality before shipping. Unlike many competitors, Rinnai makes the vast majority of our key components, allowing for consistent control of quality. That’s why more consumers and businesses choose Rinnai over any other tankless brand.

Condensing Boilers

Comfort You Can Count On

Rinnai condensing boilers are user-friendly and dependable for heating your home and your water. Each model continually adjusts to maximize efficiency and optimize performance — providing comfort you can count on.

Flexible Options

Choose between heat-only boilers or combination boilers, offering both heating and hot water all in one unit. All boiler series support natural gas or propane.

Easy Installation

Each model offers reduced space requirements compared to traditional boilers, allowing for quick installations in existing homes and new construction.

Smarter is Better

Rinnai boilers include on-board display for easy navigation. Additionally, an outdoor reset sensor continually adjusts to changing temperatures.

I-Series

The Rinnai I-Series Boilers offer both heat-only and combination models with simultaneous delivery of heat and hot water in one unit.

  • Dual Zone Heating
  • Hot Water Temperature Control
  • Built-in Recirculation for Combination Models

Direct Vent Wall Furnaces

EnergySaver® Direct Vent Furnaces®

Direct Vent Furnaces are highly efficient and can be installed in a wide variety of locations, including basements, sheds, garages, cabins, and more.

Efficient Warmth

Create consistent heat and energy efficiency with Rinnai technology that optimizes gas usage. Each model features advanced modulating technology, which responds to even the smallest temperature fluctuations — keeping your home consistently comfortable.

  • Quality and Reliability
  • Compact Size
  • Flexible Installation Options
  • Wall Thermostat Compatible
  • User-Friendly Controls
  • Safety Features

Always Comfortable

With no ductwork required, a modulating gas valve with a variable-speed blower uses only the gas needed to heat the space, bringing in evenly distributed heat and minimizing heat loss.

  • Monitor: Constantly monitoring the temperature within 2 inches from the floor.
  • Detect: Responds immediately to heat loss.
  • Adjust: Fan speed and BTU increase to reach your set temperature. During influxes of cold air, the furnace quickly restores warmth.

Vent-Free Fan Convectors

Rinnai Vent-Free Convectors push heat to the farthest reaches of the room, evenly warming larger spaces. Each model is 99.9% efficient for hard-to-heat rooms, maximizing cost savings and comfort for your home (U.S. only).

Consistent Temperature

Supplemental / Zone heating keeps influxes of cold air at bay by regulating the temperature for a more comfortable living environment.

  • Flexible Installation Options
  • User-Friendly Controls
  • Modulating Technology
  • Oxygen Depletion Sensor
  • Electronic Ignition
  • Easy Maintenance

Evenly Distributed Warm Air

With a convection fan, warm air is distributed throughout the space, providing comfort even in faraway corners.

  • Temperature output control maintains efficiency when heat isn’t needed.
  • By eliminating vents or ducts, places where heat typically gets lost, virtually all the warm air gets delivered to the room.

Hydronic Air Handler

Enjoy efficient home heating and hot water simultaneously with one complete, energy-saving system. The Rinnai Hydronic Air Handler System makes the traditional furnace a thing of the past.

All-in-One Comfort

Connects to the RUR-Series, RU-Series, RL-Series and V-Series tankless models as well as the I-Series combination boilers.

  • Models With and Without Pumps
  • Compatible with Cooling Solutions
  • Balance of Heat and Humidity
  • Flexible Installation Options
  • Works with Thermostats
  • Supports Varying Fuel Types

One Complete Heating System

The hydronic air handler system connects seamlessly to select tankless water heaters and condensing boilers to deliver efficient, simultaneous home heating and hot water in one complete system.

  • Delivers high-quality heat to the home
  • Operates based on input from a wide variety of thermostats
  • Can be configured to work with AHRI-certified cooling solutions, including indoor cooling coils and outdoor systems

Learn More About Rinnai