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  • ENERGY STAR Certified
    Water Heaters

    Water heaters that earn the ENERGY STAR come with gas, solar or electric heat pump technology. They heat your water just like standard models but with much less energy, saving you up to $3500 over a unit’s lifetime.

Learn what to look for when buying and installing an ENERGY STAR certified water heater.

See buying guidance for:


Navien - NPE-180S2

Description

  • ENERGY STAR Partner Field details:
    Navien, Inc.
  • Type Field details:
    Gas Tankless
  • Fuel Field details:
    Natural Gas, Propane
  • Max. Amps Field details:
    5.0
  • Vent Type Field details:
    Power Direct Vent
  • Max. Input Rate for Gas Products (Btu/hr) Field details:
    150000
  • Maximum Gallons Per Minute Field details:
    4.4 (High-Usage)
  • Refrigerant TypeField details:
    Not Available

Efficiency

  • Uniform Energy Factor (UEF) Field details:
    0.96
  • Therms/year for Natural Gas Field details:
    176

Size

  • Vent Size 1 (inches) Field details:
    2
  • Vent Size 2 (inches) Field details:
    2
  • Water Heater Depth (inches) Field details:
    13.0
  • Water Heater Height (inches) Field details:
    27.0
  • Water Heater Width (inches) Field details:
    17.0

Features

  • Connected Capable Field details:
    No
  • Tax Credit Eligible Field details:
    Yes
  • ENERGY STAR Certified Field details:
    Yes

Market

  • Date Certified Field details:
    02/23/2023
  • Markets Field details:
    United States, Canada

Additional Model Identification

ENERGY STAR Unique IDField details: 2408692