On Demand Tankless Hot Water Systems – Navien NPE-210A

Navien NPE 210A

Ultra Condensing Efficiency

Navien’s Condensing Technology offers the high efficiency.
Money and energy savings over tank type water heaters and traditional water heaters.

Two Stainless Steel Heat Exchangers

Provides longer life expectancy as they are highly resistant to corrosion and erosion compared to copper heat exchangers.
Reduces minerals deposits.

Low NOx Emissions (≤ 20ppm)

New metal fiber burner is designed to deliver a consistent air/gas mixture improving combustion efficiency.
Result in less acid rain and less green house effect.
Comply with SCAQMD 1146.2 strict NOx emissions standard.

2” PVC, CPVC, Polyprophylene Venting Up To 60’

2” venting option allows for a flue to be pulled through the existing vent.
3” vents can be used up to 150’ with standard 2” x 3” adapters.

Utilizes Existing 1/2″ Gas Line

The negative pressure gas valve and fan with dual venturi operation allows for better adaptability to low gas pressure applications.
Makes it possible for the NPE to be installed ½” gas lines up to 24’.

Field Convertible

NPE models allow for easy convertibility from NG to LP.

Less Water Pressure Drop

Simple modular for water path minimizes water pressure drop.
Modular design for water path make maintenance easier and service can be performed easily in the field.

Intelligent Preheating Technology

Recognizes hot water usage patterns to intelligently provide hot water when needed.

Data Field NPE-210A
Heat Capacity (Input) Natural Gas 19,900-180,000 BTU/H
Propane Gas 19,900-180,000 BTU/H
Energy Factor NG / LPG (DOE) 0.97 / 0.97
Flow Rate (DHW) 35⁰F(19⁰C) Temp Rise 10.1 GPM (38 L/m)
45⁰F(25⁰C) Temp Rise 7.8 GPM (30 L/m)
77⁰F(43⁰C) Temp Rise 4.6 GPM (17 L/m)
Dimensions 17.3″(W) x 27.4″(H) x 13.2″(D)
Weight 82 lbs (37 kg)
Installation Type Indoor or Outdoor Wall-Hung
Venting Type Forced Draft Direct Vent
Ignition Electronic Ignition
Water Pressure 15-150 PSI
Natural Gas Supply Pressure (from source) 3.5″-10.5″ WC
Propane Gas Supply Pressure (from source) 8″-13″ WC
Natural Gas Manifold Pressure (min to max) -0.04″ WC to -0.36″ WC
Propane Gas Manifold Pressure(min to max) -0.02″ WC to -0.66″ WC
Minimum Flow Rate 0 GPM (0 L/m)
Connection Sizes Cold Water Inlet 3/4″ NPT
Hot Water Outlet 3/4″ NPT
Recirculation Inlet 3/4″ NPT
Gas Inlet 3/4″ NPT (Suitable for use with 1/2″ rigid gas pipe; refer to installation
manual for sizing criteria)
Power Supply Main Supply 120 V AC, 60Hz
Maximum Power Consumption 200W (max 2A), 350W (max 4A) 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, Polypropylene 2″ or 3″ Special Gas Vent Type BH (Class
II, A/B/C)
Intake 2″ or 3″ PVC, CPVC, Polypropylene 2″ or 3″ Special Gas Vent Type BH (Class
II, A/B/C)
Vent Clearances 0″ to Combustibles
Safety Devices APS, Ignition Operation Detector, Water Temperature High Limit Switch,
Exhaust Temperature High Limit Sensor, Power Surge Fuse
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