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Internet # 306655638

Model # RL75eP

Store SKU # 1003546119

High Efficiency Plus 7.5 GPM Residential 180,000 BTU/h Propane Exterior Tankless Water Heater

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  • Enjoy endless hot water
  • Less space for heating gives you more space for living
  • Includes isolation and PRV valves; no additional purchase needed
  • View More Details
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Product Details

About This Product

Welcome to ultimate efficiency. With technology that operates only when hot water is needed, super-efficient heating coils, no pilot light and no storage tank to heat and reheat water, you save on energy and utility costs. In fact, Rinnai Tankless Water Heaters use up to 40% less energy than a traditional tank water heater. Plus, with premium technology, increased energy efficiency, an improved Home Energy Rating System (HERS) Index Score and optimized LEED eligibility, our tankless solutions can increase your home's value. You can even qualify for energy efficiency rebates and tax credits. It's a smart investment for now and the future.


  • Energy factor of 0.82 / uniform energy factor of 0.81
  • Equipped with Rinnai Circ-Logic - pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation
  • Save time with hot water whenever and wherever you need it, any size home, even for simultaneous uses at multiple fixtures
  • Save energy and reduce utility costs by operating only when hot water is needed
  • Temperature lock function prevents accidental or unauthorized changes to water temperature
  • Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx emission levels
  • Wi-fi ready
  • Residential warranty: limited 12-year on heat exchanger, 5-year on parts, 1-year on labor (5-year optional on labor); commercial warranty: limited 5-year on heat exchanger, 5-year on parts, 1-year on labor (2-year optional on labor)
  • *Note. Rinnai is changing the language in its warranty terms and conditions found in the current User Installation manuals. The existing statement will be replaced by the following: "This Limited Warranty applies only to products that are installed in the United States and Canada. Improper installation may void this Limited Warranty. It is recommended that a trained and qualified professional who has attended a Rinnai installation training class complete your installation." All warranties (old or new manual) will be honored as written above.
  • You can be confident in choosing to install Rinnai tankless technology in your home; our commitment to quality has made us the #1 selling tankless water heating brand in North America; your family deserves nothing less
  • Professional installation recommended; please call 833-746-6210
  • Rinnai branded accessories will ensure optimal performance of your Rinnai Tankless Water Heater.
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 306655638

Model # RL75eP

Store SKU # 1003546119


Dimensions: H 23 in, W 14 in, D 9 in


Product Depth (in.)

9 in

Product Height (in.)

23 in

Product Width (in.)

14 in

Water Connection Size (in.)

3/4 in


Efficiency Level


Finish Family

Silver Metallic

Flow Rate @ 35°F Rise (gallons/min)

7.5 gal (US)/min

Flow Rate @ 45° Rise (gallons/min)

6.7 gal (US)/min

Flow Rate @ 55° Rise (gallons/min)

5.3 gal (US)/min

Flow Rate @ 65° Rise (gallons/min)

4.5 gal (US)/min

Fuel Type


Heat Exchanger Warranty

12 Year



Maximum Temperature (F)

160 F

Minimum Activation Rate (gpm)


Minimum Temperature (F)

98 F

Number of Showers


Pack Size


Product Weight (lb.)

43.7 lb

Required Volt Connection

120 volt



Total BTU (Btu)

180000 Btu

Uniform Energy Factor


Vent Type

Single Wall

Warranty / Certifications

Certifications and Listings

AHRI Certified, CSA Certified

Labor Warranty

1 Year

Part Warranty

5 Year

Questions & Answers

Q:This listing says propane, but the specifications say gas. Does it actually come set up for propane ?
by|Dec 20, 2023
1 Answer
Answer This Question

A:  Hello, the listed unit gas type is set up for propane gas. You may verify gas type set up for by review of the model number ending in a P (propane gas type, example RL75eP) or N (natural gas type, example RL75eN). - Thank you, Rinnai Customer Care

by|Dec 21, 2023
    Q:Can this model provide enough hot water for a 5 bathroom home, replacing a 75 gal water heater previously in place?
    by|Nov 13, 2023
    1 Answer
    Answer This Question

    A:  Hello, Rinnai offers a tool on our website to assist in selecting a product that best fits your needs please click on the following link https://www.rinnai.us/residential/solution-selector or https://www.rinnai.us/tankless-101 and our live chat agents will be happy to assist. - Thank you, Rinnai Customer Care

    by|Nov 14, 2023
      Q:Does this unit come with the cover or do I have to perchance it separately?
      by|Apr 18, 2023
      2 Answers
      Answer This Question

      A:  Yes, the unit comes complete and ready to install. The cover is part of the unit.

      by|Apr 18, 2023

        A:  Hello, the model RL94eP does not include the accessories such as the pipe cover for below unit or a recess box for whole unit protection. If you have further questions, please call our customer care specialist team on 800-621-9419 between the hours of 8 A.M. and 8 P.M. EST Monday through Friday and will be happy to assist you. - Thank You, Brittany

        by|Apr 18, 2023
          Q:Does this include the thermo stat?
          by|Dec 7, 2020
          1 Answer
          Answer This Question

          A:  Greetings Wade, This unit does come with a thermostat. Thank you!

          by|Dec 10, 2020
            Showing 1-4 of 7

            Customer Reviews

            4.7 out of 5

            • 4.7 out of 312 reviews
            • 100% recommend this product
            Filter by:
            Showing 1-10 of 312 reviews
            Satisfied Customer
            I’ve had the Rinnai Tankless Water Heater for several months. It is performing beautifully. Takes up so much less room than my old water heater, and is neat, good looking, and out of the way. Very pleased.
              New to tankless water heaters
              The continuous supply of hot water. I really dislike the delay in getting the hot water 😖. 6 months. Yes
                Rinnai Tankless
                Heats water extremely fast. The one we replaced, took forever to get hot water.
                  Satisfied Customer
                  Love the the fact that it doesn't use propane unless it is being used. Had first Rinnai over 17 years. It's a great product
                    Order was delivered on schedule and in perfect shape. I had it installed and works like a charm.
                    • Verified Purchase
                    Love hot water
                    We’ve had the unit a couple months. Love that we don’t run out of hot water!
                      Good Company Good Product
                      Really like this tankless hot water unit. Installed outside with propane tank. Very efficient and reliable. I have had unit 4 years now and not one complaint. This unit even has a cold weather system built-in to prevent any freezing. Valves are a bit stiff to open and close when flushing unit every few years, but they sell adapters to assist with this function. Most plumbers in my area sell the Rinnai units and I can see why. Very good unit for the money and no more worrying when the old water tank will leak and damage the ineterior of my home.
                        Rinnai remains a super product
                        Excellent product. We have two (one in our Guesthouse and one in the main house). They are reliable and provide all the hot water we need.
                          My Rinnai on demand outdoor water heater for my tiny house is HIGH quality and so much better than another brand unit it replaced. I have only had it for 4 months, but it already made it through rainy, very windy, central Oregon coast winter weather with no problems. It took me a long time to locate where a beep noise was coming from, because I did not know there is an alarm! Now I know a code 11 means my propane tank is empty & the heater is not receiving propane! I absolutely love that it’s so easy to change the heat setting so I can set the temperature 5 degrees higher in winter.
                            High Quality
                            I’ve had it about 6 months. It is much more powerful than the previous brand it replaced. I wish it had come with insulation so it could be used in winter without my having to go purchase insulation batts myself and install them.
                              Showing 1-10 of 312 reviews