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- Navien NPE-180A 150,000 BTU Condensing PremiumGas Tankless Water Heater
Navien NPE-180A 150,000 BTU Condensing PremiumGas Tankless Water Heater
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Navien NPE-180A 150,000 BTU Condensing PremiumGas Tankless Water Heater
Navien has been pushing the boundaries of efficiency for 25 years. The NPE-180A is a result of their dedication to providing an effective and green water heating unit. The NPE-180A and all Navien models utilize condensing technology which captures additional heat lost by typical water heaters. The Navien NPE-180A's energy factor is superior to both traditional water heaters and noncondensing tankless models. Reduced vent temperatures due to this condensing technology allow you to use PVC venting, which saves you money and contributes to the ease of installation. The Navien NPE-180A has excellent technology for reducing your heating costs and carbon footprint.
Product Features:
ComfortFlow Technology
ComfortFlow is Navien's recirculation system and it is included in the NPE-180A. By combining a small insulated buffer tank with a recirculation pump the NPE-180A ensures that you will always have hot water available instantly.
Help the Environment
The Navien NPE-180A will reduce your home's impact on the environment. Eco Pre-mixed Burners reduce CO and NOx emissions by combining gas heating and air before ignition. The result is a nearly 75% reduction in polluting emissions. In fact, an installed Navien NPE-180A reduces CO2 by the same amount as 31 cypress trees.
Incredible Efficiency
Navien products reduce energy consumption without sacrificing comfort. Their tankless models, such as this one, only heat water when you need it, reducing energy expenditure. Also, the NPE-180A uses a secondary heat exchanger to transform condensation and exhaust into additional heat. This reduces the ventilation temperature and increases the energy factor. The NPE-180A's efficiency translates directly into savings on operation costs for you!
Tremendous Durability
The Navien NPE-180A uses stainless steel for the Eco Pre-mixed Burner and both heat exchangers. This prevents corrosion and increases the lifespan of your NPE-180A.
A Product You Can Trust
Navien products are recognized by an array of organizations. The NPE-180A is certified by Energy Star; the Air-Conditioning, Heating and Refrigeration Institute; the Canadian Standards Association; and the National Sanitation Foundation.
Product Includes:
- (1) Conversion Kit
- (1) Wall Mounting Bracket
- (4) Tapping Screw & Anchor
- (2) 2" Vent Termination Cap
- (4) 2" Wall Flange
Product Specifications:
| General Data | |
|---|---|
| Fuel Source | Natural Gas |
| Vent Type | Direct Vent |
| Storage Type | Tankless |
| Installation Location | Indoor/Outdoor |
| Gas Conversion Kit | Included |
| Performance Data | |
| Flow Rate at 45F Temperature Rise (GPM) | 6.5 |
| Maximum Input Capacity (BTU) | 150000 |
| Minimum Input Capacity (BTU) | 15000 |
| Energy Factor | 0.99 |
| Minimum Flow Rate (GPM) | 0 |
| Electrical Data | |
| Voltage (Volts) | 120 |
| Phase | 1 |
| Frequency (Hertz) | 60 |
| Dimensions | |
| Primary Vent Pipe Diameter (Inches) | 3 |
| Secondary Vent Pipe Diameter (Inches) | 2 |
| Gas Connection Size (Inches) | 3/4 |
| Cold Water Inlet (Inches) | 3/4 |
| Hot Water Outlet (Inches) | 3/4 |
| Product Height (Inches) | 27 2/5 |
| Product Width (Inches) | 17 3/10 |
| Product Depth (Inches) | 11 2/5 |
| Product Weight (Pounds) | 75 |
| Certifications | |
| Energy Star Listed | Yes |
| CSA Listed | Yes |
| AHRI Certified | Yes |
| NSF Listed | Yes |
Note: Navien is not affiliated with and does not sponsor, endorse or warranty/support Hebron Consumer Products or products on this website.
Product Reviews
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Love it!
Posted by Allen on 11th Nov 2020
We had a first gen Bosch tankless for the past 18 years. It never operated like a real water heater. Cold plugs all the time when showering. A friend turned me on the Navien and we are ecstatic!! No cold water plugs, easy install (did it myself) would recommend Navien to anyone.
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Replaced a 22 year old unit with this one
Posted by kdancy on 20th Apr 2020
I replaced a 22 year old gas tank-less water heater with this one as I could no longer get parts for the old one. The old one had the pilot light that always stayed on, new units do not, much safer!
This was a little more involved install due to the condensate drain and dual stack used for both intake air and exhaust air. I did this myself and had the gas company to check the gas regulator for pressure as I have 1/2" gas line and was concerned about having enough pressure. No problem, the Navien 180 works great. A very nice unit that works as expected. Would definitely purchase again.
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Quiet, Hot and Straightforward
Posted by Proxybox on 21st Nov 2017
I was skeptical about hanging the 180a outside where my old 40 gallon wh sat because I thought the noise would reverberate through the walls. After researching several reviews I was convinced to purchase it from here and install it myself. It took a day but the results are fantastic. Sound has not been an issue at all. I purchased the Navien HotButton kit and also purchased an inexpensive 12v wireless remote control and wired it in and now have true on demand hot water. I put a remote in each bathroom and kitchen and push it prior to using the service and wait about a minute and turn the handle. I did use a return line which was on my old system so I don't waste much water. The recirc pump was cutting off too quickly but a call to Navien tech support and a few programming changes and everything is perfect. In fact, I set the pump to run 3 minutes but it automatically cuts off after about 1.5 min when the return incoming water reaches 90 f. I haven't been through a winter yet so I'm sure it'll stay on longer then.
I would also recommend buying a manometer to test your service line pressure under static and load situations to ensure you have sufficient gas. You can purchase an inexpensive one that is accurate on eBay or Amazon for about 40. Check YouTube and you'll see the tests people have done on this model. Impressive.
An added bonus is I can lower the temperature on the front panel to 90 hook up a garden hose to my service valve, which I definitely recommend, and wash my dog outside. He loves the warm water and being outside. I simply raise the temp back to 120 and everything is back to human use
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Navien is the best you can buy
Posted by Kathryn Waters on 26th Aug 2016
Navien is the best you can buy. It has a awesome service dept.
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Works great
Posted by Unknown on 21st Oct 2015
Just finished installing the heater on the weekend and all seems fine, started right up. Instructions were clear and easy to understand.
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Works and looks great
Posted by Unknown on 7th Sep 2015
First week in and it works great
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Best Purchase
Posted by Rick Sanford III on 27th Oct 2014
You can't go wrong with Naviens. They make good heaters
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