Data / ENERGY STAR / Mainstays

Mainstays ENERGY STAR certified products: 17 models in 2 categories

Mainstays has 17 ENERGY STAR certified products across 2 categories on the EPA's list as read on November 4, 2026. Its newest certification is EFD600A-525 in ceiling fans, dated April 9, 2026, and its largest category is ceiling fans with 10.

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.

• 17Certified products
• 2Categories
• April 9, 2026Newest certification
• Ceiling fans, 10Largest category

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.

Newest Mainstays certifications

The 17 most recent certifications. Each row links to the product's record in the EPA's open data portal.

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.