Navien Tankless Water Heater | NPE-S2 Standard Condensing Gas Water Heater

From $2,203.41
By Navien

Product Sizing
  • NPE-150S2: 3.4 GPM with 37 °C rise
  • NPE-180S2: 4.4 GPM with 37 °C rise
  • NPE-210S2: 5.3 GPM with 37 °C rise
  • NPE-240S2: 5.8 GPM with 37 °C rise
Shipping Information
  • This item quallifies for $95 terminal shipping across Canada!
  • This item can be shipped directly to your address for an extra cost; contact our team for a personalized shipping quote.

Click here for more information.


Yes, this product is Energy Star certified!

Click here to learn more about ENERGY STAR in Canada.

Greener Homes Grant Eligibility

No, this product is not eligible for the Canada Greener Homes Grant, except possibly for Northern or off-grid communities.

Click to learn more about the Canadian Greener Homes Initiative and product eligibility here.

  • 15 Years Heat Exchanger (standard recirc)
  • 5 Years Parts
  • 1 Year Labour

Click here to learn more how warranty works.


Not sure if this product is right for you? Require advice selecting the correct unit?

Contact our team for professional support.

Navien NPE-S2 On-Demand Hot Water Heaters - a Smarter Hot Water System for a Modern Life Style

The NPE-S2 lineup from Navien are ultra-efficient condensing gas tankless water heaters building on a proven platform with an outstanding legacy. These modern and compact on-demand hot water heaters are easy to install, easy to operate, and can be wall mounted, saving you valuable floor space.

These residential or small commercial gas water heaters are available in four sizes to outfit almost any sized home - 120,000 BTU/hr, 150,000 BTU/hr, 180,000 BTU/hr, or the large 199,900 BTU/hr. Additionally, each NPE-S2 water heater is field convertible between natural gas (NG) and liquid propane (LP).

From the energy savings you will experience from this high performance, high efficiency Energy Star rated water heater to the easy-to-use EZNav built-in digital control panel, the NPE-S2 are a great addition for any new build home or retrofitting in an existing home or apartment.

Key features of the Navien NPE-S2 Tankless Gas Domestic Water Heater (NPE-S2):

    • Endless hot water, only when you want it
      • Available in sizes for any home
        • Smart Home compatible - stay connected with the optional NaviLink WiFi Remote Control System
          • Proven quality that is stood by - all units come with warranty
            • Lower your energy bills and exhaust emissions
                • Compact, stylish, wall-hung designs - save up to 80% more space compared to a traditional tank water heater
                  • Energy Star rated, performing at up to 0.96 UEF efficiency
                    • Field convertible to natural gas (NG) or liquid propane (LP)
                      • Turn-down ratio (TDR) up to 15:1 - create only as much hot water as is needed
                        • Dual stainless steel heat exchangers better resist corrosion, resulting in a longer-lasting and durable build
                          • Built-in EZNav control panel and software make installation and operation easier than ever:
                              • Backlit, easy-to-read and user friendly digital control panel
                                • Easier than ever set up, operation, and troubleshooting
                                  • Built in self-diagnostics
                                    • Displays water temperature and flow rates

                                    Safety warning: this is a gas appliance, and as such, requires certified, professional installation. Failure to properly install & commission a gas appliance can lead to serious damage, injury, or death.

                                    More information regarding Navien NPE-S2 Gas Tankless on-demand water heaters can be found below:

                                    Navien NPE-S2 Website

                                    Navien NPE-S2 Brochure

                                    Navien NPE-2 Tankless Water Heater Product Dimensions & Sizing Information:

                                    Heating Capacity (BTU/hr)
                                    Hot Water Output (with 36°C temp. rise)
                                    Dimensions (H x W x D)
                                    18,000 - 120,000
                                    3.4 GPM (13 L/min)
                                    27.4" x 17.3" x 13.2"
                                    (69.6 cm x 43.9 cm x 33.5 cm)
                                    10,000 - 150,000
                                    4.4 GPM (17 L/min)
                                    27.4" x 17.3" x 13.2"
                                    (69.6 cm x 43.9 cm x 33.5 cm)
                                    12,000 - 180,000
                                    5.3 GPM (20 L/min)
                                    27.4" x 17.3" x 13.2"
                                    (69.6 cm x 43.9 cm x 33.5 cm)
                                    13,300 - 199,900
                                    5.8 GPM (22 L/min)
                                    27.4" x 17.3" x 13.2"
                                    (69.6 cm x 43.9 cm x 33.5 cm)
                                    10,000 - 150,000
                                    4.3 GPM (16 L/min)
                                    27.4" x 17.3" x 13.2"
                                    (69.6 cm x 43.9 cm x 33.5 cm)
                                    12,000 - 180,000
                                    5.1 GPM (19 L/min)
                                    27.4" x 17.3" x 13.2"
                                    (69.6 cm x 43.9 cm x 33.5 cm)
                                    13,300 - 199,900
                                    5.6 GPM (21 L/min)
                                    27.4" x 17.3" x 13.2"
                                    (69.6 cm x 43.9 cm x 33.5 cm)