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Data / ENERGY STAR / GSW WATER HEATERS

GSW WATER HEATERS ENERGY STAR certified products: 35 models in 2 categories

GSW WATER HEATERS has 35 ENERGY STAR certified products across 2 categories on the EPA's list as read on November 4, 2026. Its newest certification is GTM-140X3-N 1** in gas water heaters, dated July 15, 2026, and its largest category is gas water heaters with 22.

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.

Get every product GSW WATER HEATERS certifiedWatch new GSW WATER HEATERS certificationsCompare brands in gas water heaters
Certified products
35
Categories
2
Newest certification
July 15, 2026
Largest category
Gas water heaters, 22

Certified products by category

Counts and the latest certification date in each category. Categories with several models link to the brand's page for that category.

CategoryCertified productsLatest certification
Gas water heaters22July 15, 2026
Heat pump water heaters13March 24, 2026

Newest GSW WATER HEATERS certifications

The 35 most recent certifications. Each row links to the product's record in the EPA's open data portal.

CategoryModelENERGY STAR IDCertifiedSource
Gas water heatersGTM-140X3-N 1**4670333July 15, 2026data.energystar.gov
Gas water heatersGTM-160X3-N 1**4670314July 15, 2026data.energystar.gov
Gas water heatersGTM-199X3-P 1*14617117May 27, 2026data.energystar.gov
Gas water heatersGTM-199X3-N 1**4617115May 27, 2026data.energystar.gov
Gas water heatersGTM-180X3-N 1**4617114May 27, 2026data.energystar.gov
Heat pump water heatersGTHPCO-45 1**+GTXST-50T 1**4529419March 24, 2026data.energystar.gov
Heat pump water heatersGTHPCO-45 1**+GTXST-50TTTP 1**4529415March 24, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-50S 1**4529476March 19, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-50STTP 1**4529475March 19, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-50LBTTP 1**4529430March 19, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-50T 1**4529427March 19, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-50TTTP 1**4529423March 19, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-66 1**4529411March 19, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-66TTP 1**4529407March 19, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-80 1**4529403March 19, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-80TTP 1**4529399March 19, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-50S 1*4529611March 4, 2026data.energystar.gov
Heat pump water heatersGHPCO-45 1**+GXST-50STTP 1*4529610March 4, 2026data.energystar.gov
Gas water heaters8G-75100*PDV-H06* 4**4518077December 12, 2025data.energystar.gov
Gas water heaters8G-50100*PDV-H06* 4**4518073December 12, 2025data.energystar.gov
Gas water heatersGTM-180X3-N4015977April 21, 2025data.energystar.gov
Gas water heatersGTM-160X3-N4015976April 21, 2025data.energystar.gov
Gas water heatersGTM-199X3-N4015973April 21, 2025data.energystar.gov
Gas water heatersGTHR-180M 1**2862525December 18, 2023data.energystar.gov
Gas water heatersGTHR-180X3 1**2862524December 18, 2023data.energystar.gov
Gas water heatersGTHR-199M 1**2862495December 18, 2023data.energystar.gov
Gas water heatersGTHR-199X3 1**2862493December 18, 2023data.energystar.gov
Gas water heatersGTHR-160M 1**2862480December 18, 2023data.energystar.gov
Gas water heatersGTHR-160X3 1**2862478December 18, 2023data.energystar.gov
Gas water heatersGSWT-340H-N 1**2408785February 23, 2023data.energystar.gov
Gas water heatersGSWT-340H-P 1*12408784February 23, 2023data.energystar.gov
Gas water heaters6G5076NVC02 1**2408725February 23, 2023data.energystar.gov
Gas water heaters6G5076NVC 1**2408713February 23, 2023data.energystar.gov
Gas water heaters6G50100*PDVH 3**2408709February 23, 2023data.energystar.gov
Gas water heaters6G75100*PDVH0* 3**2408706February 23, 2023data.energystar.gov

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.