Rinnai C85eN Tankless Water Heater

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ITEM# 14115463
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ITEM#: 14115463

Experience a never-ending supply of fresh hot water with this energy-efficient water heating system that uses a gas-powered heat exchanger to heat water. Compact in size, Rinnai's innovative tankless technology heats water only as needed.

  • Type: Tankless water heater
  • Brand: Rinnai
  • Model: C85eN
  • BTU min and max: 15,000-199,000 BTU/h (Natural gas or propane)
  • 8.5 gallons per minute
  • Temperature range with remote: 98-185-degrees F / Factory setting: 140-degrees F
  • Voltage: AC 120 Volts-60 Hz
  • Remote control: DC 12-Volts
  • Color: Beige
  • Finish: Gloss
  • Material: Metal
  • Overall dimensions: 23.625 inches long x 13.75 inches wide x 8.875 inches high
  • Energy saver: Natural gas factor: 0.82, propane factor: 0.83
  • Delivery options: UPS
  • Natural Gas Only - Cannot be converted to Propane
  • External Unit Only - Cannot be installed inside a home

Assembly required: Product is fully assembled but installation is required.

According to Federal Law Magnuson-Moss Warranty Act (P.L. 93-637) All Appliance manufacturers must be given the opportunity to attempt to repair any of their appliances before it can be returned or exchanged. For more information please click here.


Material Metal
Dimensions See Details
Warranty 10 year Limited Manufacturer
Model Number C85eN / 2532WC
Country of Origin Japan

Product Reviews

5 Stars
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1 Stars
  • Most Recent

  • Works Great!
    Verified Purchase

    Saves a tremendous amount of space, works flawless and holds up to the Rinnai reputation. Note, if your power goes out the electric ignition won't work. Wife was disappointed if we lose power she likes sitting in the hot bath with candles. But, i love the service it provides.

    Read More
  • ****
    Verified Purchase

    The unit is working really well; I love it. It's easy for me to install after I read the instruction. The think I like the most are: Less space and save money for GAS. I would recommand this unit to all my friends.

    Read More

Questions & Answers

  • Q:

    "I purchased one 2 months ago it seems to go off and on while in shower???"

    • A:

      Hello dcook123, Please visit the following page for return instructions. https://help.overstock.com/app/answers/detail/a_id/3 If you need additional assistance please contact Customer Care at 1-800-The-BIG-O (843-2446). Thank you for shopping with us.

  • Q:

    "Is this outdoor unit good for Northern climates? Does it work when outside temperatures are low, as often is the case in Ohio?"

    • A:

      Hello rae48, During colder weather when the exhaust temperature is hotter than the air, the exhaust fumes condense producing white steam. It will work well in cold weather. Please feel free to contact us again with any further questions. Thank you for shopping with us!

  • Q:

    "What are the differences between the Rinnai R85eplus tankless water heater and the Rinnai C85eN tankless water heater. The discription is reading the same on each one of them."

    • A:

      Rinnai C85eN Tankless Water Heater achieves a higher temperature range from from 98-185-degrees F / Factory setting: 140-degrees F. The Temperature range for the Rinnai R85eplus is 98 to 140-degrees F (with remote) / 120-degrees F (factory setting). They do have different model numbers and the sizes are a little different. Please let us know if you have any additional questions.

  • Q:

    "Is this a new or remanufactured unit?"

    • A:

      Thank you for contacting us, this is a brand new item . Please let me know if you have any further question.

  • Q:

    "how many gallons per minutes does this heat?"

    • A:

      The unit heats 8.5 gallons per minute.

    • A:

      8.5 gallons per minute

    Read more Read less
  • Q:

    "Does it vent out of the top to a 3 inch stainless pipe? Does it plug into an outlet? Is it 199,000 BTU"

    • A:

      The BTU maximum is 199,000, it does plus into an outlet, but it uses energy efficient gases, as well. I am unsure as to where it vents to.

  • Q:

    "is the c85en-2532wc #reu-v2532wc-91-n the same as c85en-2532wc-8844865 and is this a whole house unit."

    • A:

      No, they are different items. This unit is for the entire house.

  • Q:

    "Can two or three of these units be installed together to increase capacity?"

    • A:

      Unfortunately, this is not possible. The maximum voltage without burning the unit is AC 120 Volts-60 Hz.

    • A:

      Yes. You can even have your plumber zone the units to service particular sections of your home. So, perhaps using one upstairs, one downstairs. Or one for the master bedroom and the kitchen, and one for the other parts of the house. But you dont actually

    • A:

      You don't actually "gang" them together. But you can use them to zone your plumbing. We often have a dedicated unit to a kitchen or master bathroom.

    Read more Read less
  • Q:

    "you do not say if this unit is indoor or outdoor and I can not find this exact number on the manf. website. Please give me more info"

    • A:

      This item is an indoor water heater. Manufacturer information is not available at this time.

    • A:

      This is an outdoor unit hence no top vent

    Read more Read less

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Shipping & Returns

Contact Information
Shipping Information:

Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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Standard Return Policy:

Items must be returned in new or unused condition and contain all original materials included with the shipment. More Details

FINAL SALE EXCLUSION: Items marked as FINAL SALE are not returnable unless the problem you experience is the result of our error.

For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.