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Rinnai RL75IN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Indoor Installation

  • Based on 1,027 reviews
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Availability: In Stock.
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Arrives Sunday, Jan 5
Order within 22 hours and 31 minutes
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Style: Natural Gas, Indoor Installation


Size: 7.5 GPM


Features

  • Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits; For the latest in non-condensing technology that speeds up service and installation, check out our new RE160iN model
  • Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 7.5 GPM (5 fixtures at once)
  • Smart, Durable Design: Includes 12-, 5-, and 1-year residential guarantee and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)
  • Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician
  • Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region

Description

Rinnai's high-efficiency non-condensing indoor tankless natural gas water heater models offer advanced technology for your home with comfort and value. Designed to be extremely compact, this small water heater only takes up the space of a small suitcase, letting you reclaim some of your home's most valuable real estate. This smart on-demand hot water heater can be made even smarter with a Rinnai Controlr for WiFi connectivity (not included). This easy-to-install, ultra-compact unit lets you enjoy all the benefits of Rinnai tankless water heating. You'll experience clean, reliable hot water at a consistent pre-set temperature, while saving energy and precious floor space in your home. From the Manufacturer Stop planning your mornings and evenings around your water heater. Set your own schedule, thanks to the R75LSi. 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.

Brand: Rinnai


Product Dimensions: 17.5"W x 31"H


Special Feature: Compact size providing hot water for up to 5 fixtures simultaneously, Circ-Logic technology for recirculation patterns See more


Color: Gray


Wattage: 1.2E+3


Brand: ‎Rinnai


Product Dimensions: ‎17.5"W x 31"H


Special Feature: ‎Compact size providing hot water for up to 5 fixtures simultaneously, Circ-Logic technology for recirculation patterns


Color: ‎Gray


Wattage: ‎1.2E+3


Voltage: ‎120 Volts


Maximum Flow Rate: ‎7.5 Gallons Per Minute


Maximum Temperature: ‎1.4E+2 Degrees Fahrenheit


Style: ‎Natural Gas, Indoor Installation


Mounting Type: ‎Wall


Is Electric: ‎No


Manufacturer: ‎Rinnai


UPC: ‎720825247847 766156006333


Global Trade Identification Number: ‎47


Part Number: ‎RL75iN


Item Weight: ‎54 pounds


Item model number: ‎RL75iN


Is Discontinued By Manufacturer: ‎No


Size: ‎7.5 GPM


Pattern: ‎Heater


Item Package Quantity: ‎1


Water Consumption: ‎9.4 Gallons


Certification: ‎AHRI Certified


Special Features: ‎Compact size providing hot water for up to 5 fixtures simultaneously, Circ-Logic technology for recirculation patterns


Usage: ‎Indoor use only


Included Components: ‎Valve Kit


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎See Manufacturer


Date First Available: June 27, 2011


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jan 5

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • Rinnai on demand LP hot water heater
This on demand lp hot water heater came as a recommendation from my gas company installation technician. The water supply from my well is sufficient, temperature stays steady. Its a nice design and value for the money as full parts are available locally. Its installed in our pantry and is space saving. ... show more
Reviewed in the United States on October 29, 2024 by Jim Theriault

  • No complaints and I definitely would recommend
Update as of 11/1/21.....OK... hot water stops(off and on) midstream without an obvious reason, so called for the repair guy.....1st time to do anything in almost 10 years. Update as of 7/5/17.....Still great, and have had zero issues. Update as of 11/12/14.....We have had our Rinnai installed now for about 44 months and it works extremely well. There can be a delay in hot water, or a cold water sandwich; if you change temperature quickly or turn off and then on after having it on for 15 seconds or more. It probably takes 30 seconds for ours to really heat up, and maybe 40-45 seconds to get really hot water in the dead of winter...this is slower than a tank heater and the only detriment I can note or am aware of at this point. Puts out plenty of HOT water for us as we can have 2 showers and laundry going in the dead of winter...it is no problem. We adjusted our tank to put out 140 degree water and we love it...again, especially in the winter. My wife used to fill our tub, and the old water heater would actually run out of hot water(it is a large tub).....this is never a problem again! I think beyond 3 uses at one time(shower, laundry, dishwash, etc) running you would have a capacity problem...or extrememly cold basement. There are two of us here most of the time with the occasional guests....2 1/2 bath, and Rinnai is in the basement and very close to our main shower/bathroom, so this helps the time as our upstairs shower can take a minute to get hot water when its cold. Also, getting water temp correct with a single turn knob may be an issue....the water temp only goes so low before it will cut off....but we found the minimum spot which is hot, but we turned up our Rinnai so we could get hotter water and ideally, more use or capacity at the same time. By the way it is not uncommon for our basement to be 50 or so degrees in the winter and this easily overcomes that. I cant say how much cash it has saved us really, but our propane bill has definitely not gone up...and I estimate our electric bill had actually dropped 10 bucks/mo., and that was with our electric going up 9% last year, and another 5% this year. We replaced the original house water heater that had gone bad after 6 years do to salt water getting through our reverse osmosis/charcoal filter/saline filtration system(we have very salty well water on the coast)and it backed into the original water heater due to a valve being left open....and then it literally ate our water heater from the inside out with just one soaking of brackish water(took about 6 months to destroy it, of course we didn't know it was happening until the rust color started to show up) but once the water started turning rusty it was obviously too late(and this was only a 6 yr old water heater. Also, since we have a whole house well reverse osmosis and double charcoal filters purified water running, we shouldnt have to flush our Rinnai like you are supposed to do with these every year(our water has about 60ppm tds), but you are supposed to flush/clean every year to remove buildup and sediments(we pay enough up front to not have this issue unless our filter goes bad or salt water gets through usually by human mistake). We paid less for this than our local plumber could buy them wholesale through his supplier(by about 150 bucks total). He said there is an even more efficient tankless Rinnai available if your interested? This got here in 2 days and just make sure to order the venting pipes and gas taps if you need them! We had our whole system installed for 1350 total.....so it cost us about 500 bucks more than a good replacement standard tank water heater....I am sure we have gotten this back or will be very close by the end of this year. I believe we have saved 15 bucks per month on average? Make sure your gas pipes have enough flow.....Ive heard this can be an issue also? We really love ours. If anything happened we would probably just upgrade to the more efficient unit. Our unit is about 3 years installed now, maybe longer and I see others have issues, but we really have to recommend at this point. I will edit should anything come up as I think this needs to last at least 12 years for the return to really pay off. Propane and electricity is getting more expensive and this helps through efficiency to combat costs. Installed 03/2012 ... show more
Reviewed in the United States on June 1, 2012 by M. C. Stith

  • Rinnai Replacement
We bought this Rinnai to replace an existing model that was 15 years old and kept having an alarm code for not getting enough air and therefore no hot water after about 5 minutes of use. It made showering very frustrating. We had a technician come and take the machine apart and clean it. They really didn't find anything and said it will probably need replacement. We also had a local agency come to give us an estimate to replace the Rinnai. The estimate was almost $10,000 with them wanting to rip out a section of wall in a bedroom so they could replace the intake/exhaust pipe. I started researching and after reading several reviews on Amazon realized this model was an almost identical replacement. My husband and father in law replaced this in one very long day. When taking down the old Rinnai and looking inside the intake/exhaust you could see where the air flow was being blocked by debris caused from condensation of the exhaust over time. The exhaust pipe is a good 25-30 feet long going out the roof of our house. Could the old Rinnai have been cleaned?? Maybe but at this point replacing it was the best option. The replacement took the a little less than 12 hours from beginning to end. Where the Rinnai was originally installed made it difficult to work on and they had to remove some concrete on a sonotube to hook up the cold water fitting but that was right at the end of the process. They also used a chimney sweep to clean the inside of the Rinnai intake/exhaust and there was tons of debris that came out. Not sure how we will keep this from happening again and taking the unit down to clean the intake out would be a huge ordeal. For now the new one is working great and we will worry about the rest later. Being an almost exact fit there was only a small amount of soldering that needed to be done. After cleaning the pipe, getting it installed on the wall (which was a huge pain drilling new holes into the concrete), hooking up the water pipes, turning the gas back on and checking lines for leaks, and adjusting the altitude switches inside the Rinnai, we were up and running with unlimited hot water again. It was a really long, frustrating day but it was worth it to save thousands of dollars. ... show more
Reviewed in the United States on May 21, 2024 by Upstate Customer

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