* Most orders ship same day if placed by 1:00pm EST M-F **

Rinnai RL75iP Tankless Water Heater

  • Sale
  • $1,129.06
  • Regular price $1,503.00
  • We have 115 in stock.
  • 115 available

Liquid Propane, Internal Whole House Tankless Water Heater with 7.5 GPM at 40 degrees F Rise for Three Bathroom Home

Stop planning your mornings and evenings around your water heater. Set your own schedule, thanks to the RL75i. Ideal for two- to three-bathroom homes, the R75LSi delivers up to 7.5 gallons of hot water per minute (GPM), while saving energy and money. Mount your compact R75LSi in virtually any room, and vent directly to the outside with a single wall or roof penetration.

Qualifies For Federal Tax Credit

A tankless water heater is an energy-efficient water heating system that heats water only when it's needed. These space-saving, long-lasting water heaters provide an endless stream of clean, hot water for all your appliances simultaneously without temperature fluctuations. And all while saving you up to 40% in energy costs!


  • Appropriate for 3 Showers and 1 Sink
  • ENERGY STAR Qualified
  • Certified for Installation in Manufactured (Mobile) Homes
  • Commercial-grade Heat Exchanger for Residential and Commercial Applications
  • Hot Water Capacity: 0.4 to 7.5 GPM @ 40 degrees F Rise
  • 82% Thermal Efficiency
  • Liquid Propane Fuel
  • Indoor Installation Only
  • Pre-set at 120 degrees F
  • 98 degrees F to 140 degrees F Temperature Range
  • Gas Rate Input BTU's: 10,300 - 180,000
  • Electronic Ignition
  • EZConnect (Connects Two Units Together)
  • Meets California and Texas NOx Emissions Standards
  • Compatible with Full Line of Rinnai Digital Controllers
  • GSA Approved
  • 12-Year Warranty on Heat Exchanger, 5 Year Parts, 1 Year Labor for Residential Installations
  • Includes:
    • MC-91-1 Digital Controller with Error Code Indicator
    • Isolation Valve
    • Pressure Relief Valve
    • Wall Mounting Hardware


  • Width: 14inch
  • Height: 22-15/16inch
  • Depth: 9-5/8inch
  • Weight: 50 lbs
  • Factory Set Temperature: 120
  • Gas Connection: 3/4inch
  • Water Connection: 3/4inch

Special Savings Available Click here for Rebate.

For Rinnai Certified Installation:

Contact Rinnai at 844-348-4715

Info and Guides

Owners Manual

Specification Sheet

Energy Guide


Click to edit the product in Ali Orders.
Note: only show for shop owner