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Model #RL75iP

Store SKU #1003546116

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

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$undefined.00 /mo* suggested payments with months* financingApply Now
  • Enjoy endless hot water
  • Less space for heating gives you more space for living
  • Includes isolation and PRV valves; no additional purchase needed
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Product Overview

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
  • Maximum output, minimum space; suitable for installation in non-traditional spaces such as crawl spaces and attics
  • Wi-fi ready
  • Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx emission levels
  • 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
  • California residents

Additional Resources

From the Manufacturer

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NamePerformance Plus 7.0 GPM Liquid Propane Indoor Tankless Water HeaterHigh Efficiency Plus 7.5 GPM Residential 180,000 BTU/h Propane Interior Tankless Water HeaterPerformance Platinum 9.5 GPM Natural Gas High Efficiency Indoor Tankless Water HeaterSuper High Efficiency Plus 11 GPM Residential 199,000 BTU Interior Natural Gas Tankless Water Heater
Buy 3 or more $1259.10
Gas TypeLiquid PropaneLiquid PropaneNatural GasNatural Gas
Number of Showers1-21-32-42-4
Application TypeResidentialResidentialResidentialResidential
Efficiency LevelHighHighSuper HighSuper High
Water Heater FeaturesOverheat Protection,Ultra LoNox,Wall MountedFreeze Protection,Wall Mounted,WiFiUltra LoNox,Wall MountedFreeze Protection,Wall Mounted,WiFi
Fuel TypeGasGasGasGas
Total BTU160000 Btu180000 Btu199900 Btu199000 Btu
View ProductView ProductView ProductView Product



Product Depth (in.)9 inProduct Height (in.)23 in
Product Width (in.)14 inVent diameter (in.)5 in
Water Connection Size (in.)3/4 in


Application TypeResidentialEfficiency LevelHigh
Finish FamilySilver MetallicFlow Rate @ 35°F Rise (gallons/min)7.5 gal (US)/min
Flow Rate @ 45°F Rise (gallons/min)6.7 gal (US)/minFlow Rate @ 55°F Rise (gallons/min)5.3 gal (US)/min
Flow Rate @ 65°F Rise (gallons/min)4.5 gal (US)/minFuel TypeGas
Gas Connection Size3/4 inGas TypeLiquid Propane
Heat Exchanger Warranty12 YearIndoor/OutdoorIndoor
Maximum Temperature (F)160 °FMinimum Activation Rate (gpm)0.4
Minimum Temperature (F)98 °FNumber of Showers1-3
Pack Size1Product Weight (lb.)43.7 lb
Required Volt Connection120 voltReturnable90-Day
Total BTU180000 BtuUniform Energy Factor0.81
Vent TypeSingle WallWater Heater FeaturesFreeze Protection,Wall Mounted,WiFi
Wattage (watts)76 W

Warranty / Certifications

Certifications and ListingsAHRI Certified,CSA CertifiedLabor Warranty1 Year
Part Warranty5 Year

Questions & Answers

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Customer Reviews

  • 4.5
    out of 682 reviews
  • 67%recommend this product
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Showing 1-10 of 682 reviews
So far (2 weeks after install), this unit appears to be working as advertised. It performs consis...
So far (2 weeks after install), this unit appears to be working as advertised. It performs consistently and we've not yet pushed the limits enough to run low on hot water. While you do get 'endless' hot water, there is a limit to how much it will make at once. In our area, the temperature rise required (delta T) is about 50 degrees. So according to Rinnai's website we should expect about 8 gallons per minute from this RUR199i, not the 11GPM mentioned in the title. The only (very) minor issue we've had with this one is that the manual is incorrect in the parameter settings for the recirc frequency. The settings for 'comfort' (6 cycles per hour) vs 'economy' (3 cycles per hour) are reversed from the documentation. I've verified this with a temperature logger. (Yes, I'm that much of a nerd). Beware installing this unit if you don't have significant experience with plumbing, venting and/or electrical. I would also recommend the add-ons that I've done to mine. I've installed a small thermal expansion tank on the cold side between the unit and the check valve to keep the pressure on the hot side from constantly spiking to 150PSI. And I added a UPS (uninterruptible power supply) on the power feed to help with short power outages. The wifi app that comes with it is very kludgy, buggy and barely functional. They should definitely invest more there to make it more functional and stable.
    • Recommended
    7 found this review helpful
    Impressed and some recommendations
    I just moved in to my new place and the 50 gal traditional water heater was in need of replacement (hints of leaks surrounded the installation). It was a somewhat hard choice since money savings was just marginal. A tankless had high installation cost and it wasn't clear if it would be recovered with the lowered energy usage. However, the original tank was shoe horned into a nook and made maintenance difficult (e.g. can't easily replace the anode) and it would be nice to use the recovered space for a water softener. Decided on the RUR199i because of the reciculation feature. Installed and mostly working like a champ! Still struggling with the Control-R app for adusting temperature. Haven't called Rinnai yet. But there are some suggestions: Mount it on a wall away from living spaces if possible. There is a low hum when it is in use and if it is mounted on a shared wall with a living space, you'll notice it. The noise is especially noticiable when the reciculation pump is running. Use flexible connections if possible. Things are very tight and it'll save you quite a bit of time. I wanted a neat installation a with pressure valve and hose bibs and all pipes in-wall and that took most of the time. Workout connection locations with the unit on the floor and be aware of the standoff distances from the wall as the cold water connections is close to the wall and if not properly planned could lead to a lot of headaches ;-) If using hard pipe for the condensate drain, add a union to simplify future maintenance (e.g. if you need to remove the unit).
      • Recommended
      5 found this review helpful
      Meets need and expectations.
      Meets need and expectations.
      • Verified Purchase
      • Recommended
      Not efficient
      I bought this unit over 1.5 years ago. I replaced a tanked electric water heater in the garage. After looking at lots of my own usage and data, converting energy units, the result was this saved me about $10 over a year compared with my previous tanked electric water heater. To make things worse natural gas is about 1/3 the cost of electric where I'm at, when taking into account units of energy. Of course, I do have endless hot water, which is why this review is 2 stars and not 1 star.
        Good Product
        The reliability of the water heater is excellent. We previously had another brand tankless water heater and it frequently had to be reset to provide hot water. That can be a problem when you are in the shower and you have to reset to continue receiving hot water. In the eight months since we purchased the Rinnai not one problem and the hot water is delivered faster than our old tankless system. Very pleased.
          Excellent design, very quiet to operate. Water is at temperature...
          Excellent design, very quiet to operate. Water is at temperature and no loss of pressure, we got the one with circulator to constantly have hot water at the faucet without waiting. Unit is very cold around in the exterior
          • Verified Purchase
          • Verified Purchase
          Heat Exchanger leaks
          Heat exchanger began leaking at 6 months. Installer indicated they could not get parts, unfortunately waited to call Rinnai until after one year had passed. Took numerous calls to Rinnai CS to get response on warranty, would not respond as promised. Would not cover labor to replace and only replaced heat exchanger after water dripping over electronics for 6 months. Cost $904 to replace heat exchanger, but Rinnai would only supply heat exchanger (lower expense for them). My plumber suggested Rheem or A.O. Smith, should have listened.
            1 found this review helpful
            Works amazingly well
            Exceeds my expectations. Provides hot water within a few seconds if it has not been used recently and it is quiet.
              2nd time buyer!
              My first one sprung a leak...liked the brand enough to buy the same as a replacement...hot water on demand!...have had this one a few months...first one 10+years...all positives so far
                Showing 1-10 of 682 reviews