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  • Navien NR-180 Condensing Tankless Water Heater, Natural Gas
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Navien NR-180 Condensing Tankless Water Heater, Natural Gas

by Navien

Available from these sellers.
  • 98 percent thermal efficiency. 0.96 energy factor
  • 17000 - 199000 BTU/hr
  • Flow rates - At 35 Degree Fahrenheit Rise : 10 GPM, At 45 Degree Fahrenheit Rise : 7.7 GPM, At 77 Degree Fahrenheit Rise : 3.8 GPM
  • Easy installation and PVC venting
  • Includes NR-10DU remote control
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Product Information

Technical Details
Part Number NR180
Item Weight81.6 pounds
Product Dimensions33 x 21 x 17 inches
Item model numberNR-180
Item Package Quantity1
CertificationEnergy Star
Warranty DescriptionResidential: 15 year heat exchanger, 5 year parts and 1 year labor. Note: Water heaters of any type must be installed by licensed personnel or warranty will be void.
  
Additional Information
ASINB004PYEAR6
Best Sellers Rank #626,239 in Home Improvement (See top 100)
Shipping Weight81.6 pounds
ShippingCurrently, item can be shipped only within the U.S.
Date First AvailableSeptember 13, 2010
  
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Product Description

Product Description

Navien Condensing Tankless Hot Water Heater Natural GasSKU: NR180With Navien Condensing 98 percent, you get the best of both worlds: the Best Value and "Ultra Condensing Efficiency", which offers substantial savings and contributes to a green-friendly environment. Plus, the installation and venting processes are easy, cost effective, and Navien's products are simply the best in quality and performance. 98 percent thermal efficiency. 0.96 energy factor 17000 - 199000 BTU/hr Flow rates - At 35 Degree Fahrenheit Rise : 10 GPM, At 45 Degree Fahrenheit Rise : 7.7 GPM, At 77 Degree Fahrenheit Rise : 3.8 GPM Easy installation and PVC venting Includes NR-10DU remote controlNote: We will not be held liable for any damages, injury or death caused by proper or improper installation of hot water heaters. All water heaters of any type MUST be installed by a trained and licensed technician. See Terms and Conditions. The warranty may become void if the water heater was not specified by a professional installer**

From the Manufacturer

With Navien Condensing 98 percent, you get the best of both worlds: the Best Value and "Ultra Condensing Efficiency", which offers substantial savings and contributes to a green-friendly environment. Plus, the installation and venting processes are easy, cost effective, and Navien's products are simply the best in quality and performance.

Customer Questions & Answers

Customer Reviews

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Most Helpful Customer Reviews

13 of 17 people found the following review helpful By Lookin' out for you on November 19, 2011
If you are considering purchasing a Navien Tankless hot water heater, PLEASE save yourself the headache! I had purchased three Navien heaters for two of my homes, and I have had nothing but problems with getting hot water for both houses on a regular basis. After remaining patient for two years of constant issues of trying to obtain regular hot water flow, (and several expensive bills of constant visits from my plumber), I finally discarded my Navien water heaters. To the trash they went! $$$$

With Navien, there was no fuel savings, there was the long delay of getting hot water to appliances and to the bathroom showers, (even with a recirculating system), and then to top it all off, ONCE the water temperature was perfect for showering, the water turned cold then scalding, scalding then cold! Clearly the product is NOT worth your consideration. Let my lesson of outrageous expense of THREE navien hot water heaters, then the cost of innumerable plumber visits to trouble-shoot the systems, direct you to a better source of hot water. Seriously, don't purchase this frustrating and worthless product! My three new boiler heaters have proven to be far more energy efficient, they use less water and I have quick/consistent hot water! Finally!
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16 of 22 people found the following review helpful By Amazon Customer on April 26, 2011
I have a Navien CR-180A (gas) and it's the worst water heater I've ever experienced.

1. It doesn't use less gas. I keep records of utility usage and in the summer months my gas bill is no lower with this unit than the previous 30gal tank HWH (hot water heater). If anything, it's slightly higher.

2. It does not supply constant temperature water to my shower. With the old HWH I was able to set the shower up, step in and shower for as long as I liked (probably never more than 15minutes) without readjusting the shower. Now, I must readjust the temperature several times during even the briefest of showers (5 minutes).

3. It doesn't always supply HOT (very warm yes, but not HOT) water. I notice this when setting up the dishwasher. I upped the temperature setting from factory recommended 120 to 125 degrees. I turn on the hot water tap at the kitchen faucet and let it run to heat the water in the line so the dishwasher draws hot water without a cold water "slug" in the line. I'm a hot water wimp and I can't tolerate even 120 degree water but with this HWH I can leave my hand under the tap flow for minutes. The HWH is in the basement directly below the kitchen so the pipe run is only a few feet. I get warm water and I start to pull my hand away and the water will actually cool off. This happens regularly when the HWH is in the "sleep" mode and not running the circulation pump. This does not occur at the washing machine only a few feet away.

Perhaps the HWH requires a higher flow rate to work but given that it doesn't use less energy than my old 30 gallon tank unit I see no reason to spring the extra bucks for a tankless unit.
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6 of 10 people found the following review helpful By bill on September 6, 2012
I recently built a new shore home, and decided to go with a Navien tankless water heater. Best decision I made. Works perfectly, plenty of hot water. Can shower while the washer is running and the dishwasher and someone using the outside shower. Plus it does not run while no one is at the shore house. My gas bill is next to nothing and I have a gas dryer, and gas heat. If someone is having a problem...better look at who installed the unit. I'm happy with mine on all levels.
Bill H
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1 of 2 people found the following review helpful By Robert Montgomery on October 2, 2013
Verified Purchase
I love this, I live in a 3 bed / 1 bath home. Got this to replace a 40 gallon water heater that was dying. I can do dishes, laundry and shower all at the same time.
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