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Navien Tankless: The right choice for your home

When homeowners want comfort, they want Navien. Reassurance is provided when homeowners install a Navien tankless water heater. Whether it is an endless supply of hot water, peace of mind, or efficiency to reduce operating costs, this water heater fits the bill.

When it comes to efficiency, Navien Tankless water heaters are the best in the industry. Navien’s condensing technology maximizes energy savings by capturing additional heat from the flue gases. As a result, energy consumption and greenhouse gases are significantly reduced.


The best tankless water heater Navien offers. The Navien advanced water heater results in more output for the investment, lower installation costs, and lower operating costs. Customers can feel confident in their choice to go with the NPE-A for their home.

This water heater is the first and only system that incorporates a built-in insulated buffer tank and recirculation pump. The buffer tank eliminates the “cold water sandwich” effect and minimum flow rates of other water heaters. The recirculation pump is designed for efficiency. By reducing the time it takes to get hot water, homeowners are seeing drastic decreases in their water bills.


The NPE-S is so efficient that it outperforms much larger capacity noncondensing competitors. Get the job done right and more efficiently by going with the NPE-Standard model. This water heater is designed for efficiency. When considering options for water heating, go with the options homeowners are raving about. Go with the easy option. Go tankless.

Up to 60 feet of venting with 2 inch PVC
With the advanced series, there is no need to cut new chases. Low exhaust gas temperatures allow the use of PVC, CPVC, system 636, and polypropylene venting systems. These are designed to save time and moneyFlexible Options for Field Gas
The negative pressure gas valve and dual venturi system allow for easy field convertibility from a natural or liquified petroleum gas operation

Dual Stainless Steel heat Exchanger
This feature prevents the onset of corrosion for longer than traditional copper, providing longevity in the unit.

Flexibility with 1/2 inch gas piping capabilities up to 24 feet
Eliminate the retrofit headache. With the ability to use 1/2 inch gas piping, installation time is considerably reduced.

Get more for you money with top rated efficiency

  • More output for your investment
  • Easier installation leading to lower installation costs
  • Lower operating costs for homeowners
  • Earn LEED points
  • Lower HERs score
  • 2015 AHR Innovation Award Winner

The NPE-S Front Panel Control Center

  • Self-diagnostics
  • Temperature display and water flow rate
  • Cascade operation status displayed
  • Convertible display from F to C
  • Initial setup is hassle free

NPE-S Efficiency

comparison table

NaviLinkFeaturing an integrated Wi-Fi remote control system
With Navilink technology, it is easy to communicate with your Navien systems where internet service is available. The Navilink module attaches easily to any new tankless eater heater.

NaviLink Connectivity

Temp Rise (°F)
(NEW) 150S GPM
180 series GPM
210 series GPM
240 series GPM
30 6.8 8.4 10.1 11.1
35 6.8 8.4 10.1 11.1
40 5.9 7.3 8.7 9.7
45 5.2 6.5 7.8 8.6
50 4.7 5.8 7.0 7.8
55 4.3 5.3 6.3 7.1
60 3.9 4.9 5.8 6.5
65 3.6 4.5 5.4 6.0
70 3.4 4.2 5.0 5.5
75 3.1 3.9 4.7 5.2
80 2.9 3.6 4.4 4.8
85 2.8 3.4 4.1 4.6
90 2.6 3.2 3.9 4.3
100 2.4 2.9 3.5 3.9
110 2.1 2.6 3.2 3.5
120 2.0 2.4 2.9 3.2
130 1.8 2.2 2.7 3.0
140 1.7 2.1 2.5 2.8

DHW Capacity

Natural Gas(BTU/H)
Propane gas (BTU/H)
New NPE-150S 18,000-120,000 18,000-120,000
NPE-180 A/S series 15,000-150,000 15,000-150,000
NPE-210 A/S series 19,900-180,000 19,900-180,000
NPE-240 A/S series 19,900-199,900 19,900-199,900

U.S. Green Building Council Leed Points

Water Heater
1 Point 2 Points 3 Points

Tankless Water Heater Replacement

Woolford, MD

Denton, MD

Queenstown, MD

Cambridge, MD

Algonquin, MD

Stevensville, MD

Federalsburg, MD

Cordova, MD

Saint Michaels, MD

Royal Oak, MD

Centreville, MD

Trappe, MD

Easton, MD

Newcomb, MD

Kent Island, MD

Hurlock, MD