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Data / ENERGY STAR / Gas water heaters / State

State ENERGY STAR certified gas water heaters: 47 models

State has 47 ENERGY STAR certified products in gas water heaters on the EPA's list as read on November 4, 2026, which puts it number 4 of 33 brands by model count. Its newest certification is STM-140M-N 1**, dated July 15, 2026.

SpecStream is the live web data engine for teams and agents. It reads the EPA's ENERGY STAR certified product lists, keyed on the ENERGY STAR Unique ID, and this page is that reading. Ask for the products you track by category, brand or rating, and each new certification arrives in your sheet, CRM, Slack or agent as the EPA publishes it.

  • 47Certified products
  • July 15, 2026Newest certification
  • 33Brands in this category

State certified gas water heaters

Newest first. Each row links to the product's record in the EPA's open data portal.

ModelUniform Energy Factor (UEF)Storage Volume (gallons)Recovery Efficiency (%)ENERGY STAR IDCertifiedSource
STM-140M-N 1**0.951974670342July 15, 2026data.energystar.gov
STM-140X3-N 1**0.951974670341July 15, 2026data.energystar.gov
SCTH-199M-(N,P) 1**0.951974670332July 15, 2026data.energystar.gov
STM-160M-P 1*10.951964670324July 15, 2026data.energystar.gov
STM-160X3-P 1*10.951964670323July 15, 2026data.energystar.gov
STM-180M-P 1*10.951964617136May 27, 2026data.energystar.gov
STM-180X3-P 1*10.951964617135May 27, 2026data.energystar.gov
STM-199M-P 1*10.951964617134May 27, 2026data.energystar.gov
STM-199X3-P 1*10.951964617133May 27, 2026data.energystar.gov
GP-8-75-*TPDT 4**0.8674974518076December 12, 2025data.energystar.gov
GP-8-50-*TPDT 4**0.8849974518074December 12, 2025data.energystar.gov
STM-160M-N 1**0.951964015964April 21, 2025data.energystar.gov
STM-160X3-N 1**0.951964015963April 21, 2025data.energystar.gov
STM-180M-N 1**0.951964015954April 21, 2025data.energystar.gov
STM-180X3-N 1**0.951964015952April 21, 2025data.energystar.gov
STM-199X3-N 1**0.951964015946April 21, 2025data.energystar.gov
STM-199M-N 1**0.951964015945April 21, 2025data.energystar.gov
GP8-40-YRPCSL 1**0.938913798672November 13, 2024data.energystar.gov
GP8-50-YXPCSL 1**0.949923798666November 13, 2024data.energystar.gov
STHR-199M 1**0.951982868543December 18, 2023data.energystar.gov
STHR-199X3 1**0.951982867541December 18, 2023data.energystar.gov
STHR-180M 1**0.951972865537December 18, 2023data.energystar.gov
STHR-180X3 1**0.951972865536December 18, 2023data.energystar.gov
STHR-160M 1**0.951982862490December 18, 2023data.energystar.gov
STHR-160X3 1**0.951982862487December 18, 2023data.energystar.gov
GP6-50-*TPDT 3**0.8849952408819February 23, 2023data.energystar.gov
GP6-75- *TPDT 3**0.8674962408818February 23, 2023data.energystar.gov
GTS-240-NEH 1**0.95Not listedNot listed2408805February 23, 2023data.energystar.gov
GTS-240-PEH 1*10.95Not listedNot listed2408804February 23, 2023data.energystar.gov
GTS-340-NIH 1**0.95Not listedNot listed2408789February 23, 2023data.energystar.gov
GTS-340-PIH 1*10.95Not listedNot listed2408788February 23, 2023data.energystar.gov
GTS-540X3-NEH 1**0.95Not listedNot listed2408779February 23, 2023data.energystar.gov
GTS-540X3-PEH 1*10.95Not listedNot listed2408778February 23, 2023data.energystar.gov
GP6-40-*RPCSL 1**0.938912408763February 23, 2023data.energystar.gov
GP6-50-*XPCSL 1**0.949922408758February 23, 2023data.energystar.gov
GTS-340X3-NIH 1**0.95Not listedNot listed2408750February 23, 2023data.energystar.gov
GTS-340X3-PIH 1*10.95Not listedNot listed2408749February 23, 2023data.energystar.gov
GTS-240X3-NEH 1**0.95Not listedNot listed2408739February 23, 2023data.energystar.gov
GTS-240X3-PEH 1*10.95Not listedNot listed2408738February 23, 2023data.energystar.gov
GP6-50-YTVIT 1**0.8848932408710February 23, 2023data.energystar.gov
GHX-34-100 N 2**0.933952408698February 23, 2023data.energystar.gov
GTS-540-NEH 1**0.95Not listedNot listed2408677February 23, 2023data.energystar.gov
GTS-540P-NEH 1**0.95Not listedNot listed2408676February 23, 2023data.energystar.gov
SCT-199O-N 1**0.95Not listedNot listed2408675February 23, 2023data.energystar.gov
GTS-540-PEH 1*10.95Not listedNot listed2408674February 23, 2023data.energystar.gov
GTS-540P-PEH 1*10.95Not listedNot listed2408673February 23, 2023data.energystar.gov
SCT-199O-P 1*10.95Not listedNot listed2408672February 23, 2023data.energystar.gov

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Updated November 4, 2026. Read from ENERGY STAR certified product data, US Environmental Protection Agency (data.energystar.gov). Public domain data from the US EPA and the US Department of Energy. Products are listed as the EPA publishes them on the date this page was read, and the EPA can revise or withdraw a certification. A product is counted once, under the most specific list that holds it. For heat pumps each ENERGY STAR ID is one outdoor and indoor unit combination, so a model number can repeat. Brand names are as published. This page uses EPA data and is not endorsed or certified by the EPA or ENERGY STAR. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.