government shutdown banner

There has been a lapse in Environmental Protection Agency appropriations.  EPA intends to keep the ENERGY STAR website, tools, and resources available, however they will not be updated regularly.  If you submit a question, application, or request to EPA, it may not be processed during this period. 

Access to ENERGY STAR
API, Data Set or  Excel File
 

Find and Compare

  • Together we can create a healthier planet for all of us.

    LEARN MORE
    Tip Image
Gas Water Heaters Header Image

ENERGY STAR Certified
Gas Water Heaters

Visit the  Gas Water Heaters page for usage tips and buying guidelines.

A. O. Smith - T-H3J-OS-N : ATO-240H 1*1Model Number Information

Description

  • ENERGY STAR Partner Field details:
    A.O. Smith Corporation
  • Type Field details:
    Gas Tankless
  • Fuel Field details:
    Propane
  • Max. Amps Field details:
    5.0
  • Vent Type Field details:
    Power Vent
  • Max. Input Rate for Gas Products (Btu/hr) Field details:
    160000
  • Maximum Gallons Per Minute Field details:
    4.7 (High-Usage)

Efficiency

  • Uniform Energy Factor (UEF) Field details:
    0.95
  • Therms/year for Natural Gas Field details:
    178

Size

  • Vent Size 1 (inches) Field details:
    0
  • Water Heater Depth (inches) Field details:
    11.0
  • Water Heater Height (inches) Field details:
    22.0
  • Water Heater Width (inches) Field details:
    18.0

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: 2408814