Enviroment: Local
Commercial Tankless Water Heater

Commercial Water Heating Solutions

Sometimes the difference between "open for business" and "closed for repairs" is the reliability of a water heating system.

That's why for decades, a full spectrum of commercial applications - from retrofit to new construction and light to heavy - have trusted Rinnai Tankless Water Heaters. Because the system configures to your needs and to every kind of space, every usage demand is the perfect Rinnai fit - and that makes it easy to do business.

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Condensing and Non Condensing Tankless Water Heaters

* For complete information and details regarding Rinnai’s warranty, visit rinnai.us/warranty.
** To achieve temperatures over 140° F / 60° C, an MCC-91 commercial controller must be purchased separately.
*** For complete information on gas sizing for Rinnai Tankless Water Heaters, consult the Operation and Installation Manual.
‡Based on DOE first hour test (OCFR, Part 430). Side note: the isolation valves are on the unit.

Tankless Rack System Configurations freestanding racks

*For complete information and details regarding Rinnai’s warranty, visit rinnai.us/warranty.

Freestanding Rack

  1. Lifting Eyebolt
  2. Rinnai Tankless Indoor or Outdoor Unit
  3. Manifold, Hot Water
  4. Manifold, Cold Water
  5. Manifold, Gas
  6. 3⁄4” Dirt Leg
  7. 3⁄4 FNPT Brass Ball Valve – Gas
  8. Pressure Relief Valve

For Demonstration Purposes Only.

Tankless Rack System Configurations wall hanging and wall mount racks

*When using cascade controller (REU-MSB)
**For complete information and details regarding Rinnai’s warranty, visit rinnai.us/warranty.

Inline Wall-Mounted Rack

  1. Lifting Eyebolt
  2. Rinnai Tankless Indoor or Outdoor Unit
  3. Manifold, Hot Water
  4. Manifold, Cold Water
  5. Manifold, Gas
  6. 3⁄4” Dirt Leg
  7. 3⁄4 FNPT Brass Ball Valve – Gas
  8. Pressure Relief Valve (PRV)

†GPH represents flow rate delivered as GPH, not storage GPH. *Facing same direction.

Note: Explanation of Part Numbers—For specific model numbers, add i or e (for external / internal) water heaters and N or P (for Natural Gas or LP). Example: TRW02iN, 2-unit wall-mount rack with interior Natural Gas RU98 tankless units.