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NPE-210S2 High Efficiency Condensing Tankless Water Heater
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NPE-210S2 High Efficiency Condensing Tankless Water Heater

SKU NPE-210S2
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NPE-210S2 High Efficiency Condensing Tankless Water Heater
Product Details
MODEL: NPE-210S2
Brand: Navien
Weight: 74.00 lbs

Overview
  • 1/2" gas pipe capable up to 24'
  • Field convertible gas system
  • Ultra condensing efficiency
  • Dual stainless steel heat exchangers
  • Low NOx emissions (20ppm)
  • SCH 40, 2" venting up to 75'
  • Cascading capable
  • EZNav multi-line control panel
  • Built-in HotButton control panel
  • Common vent up to 12 units

Specifications

Heat Capacity (Input) Natural Gas 12,000 – 180,000 BTU/h
(3.516 – 52.74 kWh)
Propane 12,000 – 180,000 BTU/h
(3.516 – 52.74 kWh)
Efficiency Ratings UEF (NG & LP) 0.96
Flow Rate (DHW) 35 ºF temp rise 10.1 GPM (38.2 l/m)
45 ºF temp rise 7.8 GPM (29.5 l/m)
67 ºF temp rise 5.3 GPM (20.1 l/m)
Dimensions 17.3" W x 27.4" H x 13.2" D
(43.9 cm W x 69.6 cm H x 33.5 cm D)
Boiler Weight 73 lbs (33.1 kg)
Installation Type Indoor or outdoor wall-hung
Ignition Electronic ignition
Water Pressure 15-150 PSI (1.055 – 10.545 kg/cm2))
Natural Gas Supply Pressure
(from source)
3.5" WC to 10.5" WC
(0.87 Kpa to 2.61 Kpa)
Propane Gas Supply Pressure
(from source)
8″ WC to 13″ WC
(1.99 Kpa to 3.23 Kpa)
Natural Gas Manifold Pressure
(min-max)
-0.03 ” WC to -0.76 ” WC
(-0.0075 Kpa to -0.19 Kpa)
Propane Gas Manifold Pressure
(min-max)
-0.02 ” WC to -0.76 ” WC
(-0.005 Kpa to -0.19 Kpa)
Minimum Flow Rate 0.5 GPM (1.893 l/m)
Connection Sizes Cold Water Inlet 3/4" NPT
Hot Water Outlet Size 3/4" NPT
Gas Inlet 3/4" NPT
Power Supply Main Supply 120V AC, 60 Hz
Maximum Power Consumption 200 W (max 2 A), 350 W (max 4 A) with external pump connected
Materials Casing Cold rolled carbon steel
Heat Exchangers Primary heat exchanger: stainless steel
Secondary heat exchanger: stainless steel
Venting Exhaust 2″ or 3″ PVC, CPVC, approved polypropylene and stainless steel 2″ or 3″ special gas vent type BH (Class II, A/B/C)
Intake 2″ or 3″ PVC, CPVC, approved polypropylene and stainless steel 2″ or 3″ special gas vent type BH (Class II, A/B/C)
Vent Clearances 0″ to combustibles
High Elevations 10,100 feet for both NG or LP gas. Please refer to installation Manual for additional details and instructions.
Safety Devices Flame rod, APS, ingnition operation detector, water temperature high limit switch, exhaust temperature high limit sensor, power surge fuse, burner high limit fuse, vent installation detector (VID)

* Available for NPE-A2 models configured in an optional ComfortFlow® recirculation mode. Energy consumption will increase when the system is configured for recirculation.


Dimensions

Width 17.3" (43.9 cm)
Height 27.4" (69.6 cm)
Depth 13.2" (33.5 cm)

Connection Sizes

(A) Air intake 2"
(B) Exhaust Gas Vent 2"
(C) Hot Water Outlett 3/4"
(D) Gas Inlet 3/4"
(E) Recirculation Inlet 3/4"
(F) Condensate Outlet 1/2"
(G) Cold Water Inlet 3/4"


Certification Summary

All NPE-2 models are field convertible from NG to LP gas.

Product Approvals

CSA Yes
NSF (Standard 5) Yes
Low Lead (<0.25%) Yes
SCAQMD 1146.2 (NOx, <20ppm) Yes
AHRI Number 206368361
Energy Star Certified Yes

Efficiency Ratings*

Uniform Energy Factor (UEF) 0.96
MAX GPM (67 ºF Rise) 5.3 GPM (20.1 l/m)

Annual Energy Consumption* (Residential)

Natural Gas (Therms/Year) 177.0
Propane (Gallons/Year) 194 gal (734.4 L)
Natural Gas Estimated Operating Cost** $193
Propane Estimated Operating Cost** $468

* Based on U.S. Department of Energy (DOE) test procedures.

** Based on a national average natural gas cost of $1.09/therm, propane cost of $2.41/gallon.


Certifications / Qualification



Temperature Rise

Temp Rise NPE-210S2
35 °F (19.4 °C) rate 10.1 GPM (38.2 l/m)
40 °F (22.2 °C) rate 8.8 GPM (33.3 l/m)
45 °F (25 °C) rate 7.8 GPM (29.5 l/m)
50 °F (27.8 °C) rate 7.1 GPM (26.9 l/m)
55 °F (30.6 °C) rate 6.4 GPM (24.2 l/m)
60 °F (33.3 °C) rate 5.9 GPM (22.3 l/m)
65 °F (36.1 °C) rate 5.4 GPM (20.4 l/m)
70 °F (38.9 °C) rate 5 GPM (18.9 l/m)
75 °F (41.7 °C) rate 4.7 GPM (17.8 l/m)
80 °F (44.4 °C) rate 4.4 GPM (16.7 l/m)
85 °F (47.2 °C) rate 4.2 GPM (15.9 l/m)
90 °F (50 °C) rate 3.9 GPM (14.8 l/m)
100 °F (55.6 °C) rate 3.5 GPM (13.2 l/m)
110 °F (61.1 °C) rate 3.2 GPM (12.1 l/m)
120 °F (66.7 °C) rate 2.9 GPM (11 l/m)
130 °F (72.2 °C) rate 2.7 GPM (10.2 l/m)
140 °F (77.8 °C) rate 2.5 GPM (9.5 l/m)


DHW Capacity

Model NPE-210S2
Natural Gas 12,000 – 180,000 BTU/h
(3.516 – 52.74 kWh)
Propane 12,000 – 180,000 BTU/h
(3.516 – 52.74 kWh)

HERS and LEED

U.S. Green Building Council LEED Points

Water Heater 1 Point
Location 2 Points
Recirculation 3 Points

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