Data / ENERGY STAR / Giant
Giant ENERGY STAR certified products: 14 models in 2 categories
Giant has 14 ENERGY STAR certified products across 2 categories on the EPA's list as read on November 4, 2026. Its newest certification is UTM-199X3-P 1*1 in gas water heaters, dated May 27, 2026, and its largest category is heat pump water heaters with 13.
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.
- Certified products
- 14
- Categories
- 2
- Newest certification
- May 27, 2026
- Largest category
- Heat pump water heaters, 13
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.
| Category | Certified products | Latest certification |
|---|---|---|
| Heat pump water heaters | 13 | March 24, 2026 |
| Gas water heaters | 1 | May 27, 2026 |
Newest Giant certifications
The 14 most recent certifications. Each row links to the product's record in the EPA's open data portal.
| Category | Model | ENERGY STAR ID | Certified | Source |
|---|---|---|---|---|
| Gas water heaters | UTM-199X3-P 1*1 | 4617116 | May 27, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-50LBTTP 1* | 4529614 | March 24, 2026 | data.energystar.gov |
| Heat pump water heaters | GHPCO-45 1**+GXST-50T 1** | 4529418 | March 24, 2026 | data.energystar.gov |
| Heat pump water heaters | GHPCO-45 1**+GXST-50TTTP 1** | 4529414 | March 24, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-50S 1** | 4529478 | March 19, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-50STTP 1** | 4529477 | March 19, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-50T 1** | 4529426 | March 19, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-50TTTP 1** | 4529422 | March 19, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-66 1** | 4529410 | March 19, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-66TTP 1** | 4529406 | March 19, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-80 1** | 4529402 | March 19, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-80TTP 1** | 4529398 | March 19, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-50S 1* | 4529613 | March 4, 2026 | data.energystar.gov |
| Heat pump water heaters | GTHPCO-45 1**+GTXST-50STTP 1* | 4529612 | March 4, 2026 | data.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.