WE KNOW HOW WATER WORKS and we know how to make it work better!

Rinnai R75LSi

Gas Water Heaters

Set your own schedule, thanks to the R75LSi. Ideal for 2-3 bedroom homes, the R75LSi delivers up to 7.5 gallons of hot water per minute (GPM). The R75LSi lasts twice as long as a standard water heater, while you can enjoy up to 40% in energy savings. Mount your compact R75LSi in virtually any room, and vent directly to the outside with a single wall or roof penetration.
  • Max: 7.5 Gallons/Minute
  • Max: 180,000 BTU’s
  • Natural Gas or Propane

Qualifies For Federal Tax Credit
  • ENERGY STAR qualified.
  • Sleek, modern design.
  • Commercial-grade heat exchanger.
  • Lightweight and compact.
  • Integrated condensate collector.
  • EZConnect™ (connects two units together).
  • Meets California and Texas NOx emission standards.
  • Works with natural gas or propane.
  • Energy Factor of .82 for both gas types.
  • Integrated MC-91-1 digital controller with error code indicator.
  • Temperature range with controllers: 98°– 160° F.
  • 12-year heat exchanger limited warranty for residential installations (5 years on parts, 1 year on labor).

  • Dimensions: 14” W x 26” H x 10” D
  • Weight: 50 lbs.
  • Installation : Interior/Residential or Commercial
  • Approved Gas Types: Natural Gas or Propane
  • Minimum/Maximum Gas Rate (Input BTUs): 15,000 - 180,000 NG or LP  
  • Hot Water Capacity: 0.6 to 7.5 GPM at 35° rise
  • Energy Factor: .82 for NG or LP
  • Electrical: AC 120 Volts – 60 Hz
  • Connections: Gas Supply: ¾ inch MNPT
Cold Water Inlet: ¾ inch MNPT
Hot Water Outlet: ¾ inch MNPT
  • Temperature Range (Min-Max)       
Residential: 98°-140° F
Commercial: 98°-160° F (requires MCC-91 controller)
  • Standard Digital Controller: MC-91-1

Water Heater Disclaimer: Customer has been advised that the water heater should remain set at 120 degrees as determined by the manufacturer and Gas Appliance Manufacturers Association (GAMA) standards.

Top Areas / Zip Codes we service:

Ellicott City, MD: 21042, 21043
Columbia, MD: 21044, 21045, 21046
Clarksville, MD: 21029
Sykesville, MD: 21784
Dayton, MD: 21036
Fulton, MD: 20759
Olney, MD: 20830

Office: 410-992-5875
Fax: 443-535-0032
Master Plumber 7378
MHIC 124079

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