--- title: "Blog: The Latest in HVAC/R Design with Small Diameter Copper Tubes | EPA policy" description: EPA policy | The Ultimate Resource for OEMs to Stay Informed on HVAC/R Design with Small Diameter Copper Tubes --- [Skip to content](https://blog.copper.org/hvac/r/tag/epa-policy#main-content) [![](https://blog.copper.org/hs-fs/hubfs/CDA_Logo_Copper_RGB.png?width=1118&height=256&name=CDA_Logo_Copper_RGB.png)](https://copper.org/) Open main navigation Close main navigation - [Contact us](https://www.copper.org/about/contact.php) [Contact us](https://www.copper.org/about/contact.php) BLOG # The Latest in HVAC/R Equipment Design with Small Diameter Copper Tubes [SUBSCRIBE](https://share.hsforms.com/1ghctSXBJSyOSWsYU0YgbLQctv7o) [![Coils](https://blog.copper.org/hubfs/Coil%20(1)-1.png)](https://blog.copper.org/hvac/r/5-reasons-to-partner-with-the-copper-development-association-for-research-and-development-to-develop-the-next-generation-of-heat-exchangers) ## [Partnering with the Copper Development Association for Research and Development to Develop the Next Generation of Heat Exchangers](https://blog.copper.org/hvac/r/5-reasons-to-partner-with-the-copper-development-association-for-research-and-development-to-develop-the-next-generation-of-heat-exchangers) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Oct 10, 2025, 11:41:20 AM HVAC/R OEMs across industries seek research and development partners who understand the technical de... [Read more](https://blog.copper.org/hvac/r/5-reasons-to-partner-with-the-copper-development-association-for-research-and-development-to-develop-the-next-generation-of-heat-exchangers) [![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXdvDVjK2rIC3muUifmBz4dHVqhdGxnhbwD79bZNkySjIvarIVzX684Kaj9srCv8TYXtfRIBuOd5yq4Lq1-4EWAd721QKRjKL0skuCtHr9Y58wJ03Tjr2C7zd8XgT6gyjlozu1eK9w?key=R3AaAUA_phcIJq7GLVzljQ)](https://blog.copper.org/hvac/r/small-diameter-copper-tubes-in-advanced-heat-exchanger-design) ## [Small-Diameter Copper Tubes in Advanced Heat Exchanger Design](https://blog.copper.org/hvac/r/small-diameter-copper-tubes-in-advanced-heat-exchanger-design) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Aug 26, 2025, 5:17:51 PM Real-world case studies highlight copper’s role in meeting HVAC/R system efficiency goals. [Read more](https://blog.copper.org/hvac/r/small-diameter-copper-tubes-in-advanced-heat-exchanger-design) [![](https://blog.copper.org/hubfs/R454B%20Unit%20from%20AHR%20Expo%202025%20HTT%20report.jpeg)](https://blog.copper.org/hvac/r/inside-ahr-2025-how-small-diameter-copper-tubes-are-shaping-the-future) ## [Inside AHR 2025: How Small-Diameter Copper Tubes are Shaping the Future of System Design](https://blog.copper.org/hvac/r/inside-ahr-2025-how-small-diameter-copper-tubes-are-shaping-the-future) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Jun 17, 2025, 10:44:10 AM Each year, the AHR Expo acts as a window into the future of the HVACR industry. In 2025, that window... [Read more](https://blog.copper.org/hvac/r/inside-ahr-2025-how-small-diameter-copper-tubes-are-shaping-the-future) [![](https://blog.copper.org/hubfs/SDCT%20Inner%20Tubes%202-1.png)](https://blog.copper.org/hvac/r/designing-hvac/r-equipment-with-small-diameter-copper-tube-supply-chain-and-performance-factors) ## [Designing HVAC/R Equipment with Small-Diameter Copper Tube: Supply Chain and Performance Factors](https://blog.copper.org/hvac/r/designing-hvac/r-equipment-with-small-diameter-copper-tube-supply-chain-and-performance-factors) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) May 14, 2025, 2:28:36 PM As global demand for copper continues to rise, driven by the rapid growth of data centers, clean ene... [Read more](https://blog.copper.org/hvac/r/designing-hvac/r-equipment-with-small-diameter-copper-tube-supply-chain-and-performance-factors) [![](https://blog.copper.org/hubfs/iStock-1187438271.jpg)](https://blog.copper.org/hvac/r/the-rising-demand-for-heat-exchangers-in-data-centers-and-the-critical-role-of-copper) ## [The Rising Demand for Heat Exchangers in Data Centers and the Critical Role of Copper](https://blog.copper.org/hvac/r/the-rising-demand-for-heat-exchangers-in-data-centers-and-the-critical-role-of-copper) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Mar 31, 2025, 12:30:40 PM As our world increasingly relies on digital technologies, the role of data centers as the backbone o... [Read more](https://blog.copper.org/hvac/r/the-rising-demand-for-heat-exchangers-in-data-centers-and-the-critical-role-of-copper) [![](https://blog.copper.org/hubfs/CDA%20%20Zoom%20Invitation%20Page%20Banner%20(1).png)](https://blog.copper.org/hvac/r/advancing-heat-pump-design-with-r-454b-and-the-power-of-copper) ## [Advancing Heat Pump Design with R-454B and the Power of Copper](https://blog.copper.org/hvac/r/advancing-heat-pump-design-with-r-454b-and-the-power-of-copper) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Feb 28, 2025, 4:12:13 PM The HVAC industry is at a pivotal point, balancing innovation and sustainability, influenced by chan... [Read more](https://blog.copper.org/hvac/r/advancing-heat-pump-design-with-r-454b-and-the-power-of-copper) [![](https://blog.copper.org/hubfs/Refrigerants%20Chart.png)](https://blog.copper.org/hvac/r/navigating-the-future-of-refrigerants-epa-regulations-for-a3-flammable-refrigerants) ## [Navigating the Future of Refrigerants: EPA Regulations for A3 Flammable Refrigerants](https://blog.copper.org/hvac/r/navigating-the-future-of-refrigerants-epa-regulations-for-a3-flammable-refrigerants) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Feb 17, 2025, 2:34:24 PM As environmental regulations grow stricter, the HVAC/R industry is adopting more sustainable refrige... [Read more](https://blog.copper.org/hvac/r/navigating-the-future-of-refrigerants-epa-regulations-for-a3-flammable-refrigerants) [![Small copper tubes in HVAC](https://lh7-rt.googleusercontent.com/docsz/AD_4nXckV2B8AiKCOUghwY6fE3c9p3NO2gMmrsULs5s6nI-D-jYsy4S3zco4Ube9ntqN-cw7qfbE9leHbYAMJq2jW-az1_FhD4z1tNn8CVtUDvwf6MxwaBAns_iGAgKu3nJ4sDqYD0tCMp67lkK1Zwaxxw?key=kAhRbNkOchLNQ1yEvz2DvjzF)](https://blog.copper.org/hvac/r/sustainable-planning-for-hvac/r-design-with-small-diameter-copper-tubes) ## [Sustainable Planning for HVAC/R Design with Small-Diameter Copper Tubes](https://blog.copper.org/hvac/r/sustainable-planning-for-hvac/r-design-with-small-diameter-copper-tubes) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Dec 2, 2024, 10:55:44 AM What Does Sustainable Planning Mean for HVAC/R Design? Sustainable planning for HVAC/R systems means... [Read more](https://blog.copper.org/hvac/r/sustainable-planning-for-hvac/r-design-with-small-diameter-copper-tubes) [![Small copper tubes in HVAC](https://blog.copper.org/hubfs/Coppper%20in%20HVAC.jpeg)](https://blog.copper.org/hvac/r/evolving-trends-in-refrigeration) ## [Evolving Trends in Refrigeration with an Emphasis on Sustainability and Efficiency](https://blog.copper.org/hvac/r/evolving-trends-in-refrigeration) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Nov 5, 2024, 1:00:30 PM The world of refrigerants is undergoing a dynamic transformation driven by a confluence of factors s... [Read more](https://blog.copper.org/hvac/r/evolving-trends-in-refrigeration) [![](https://blog.copper.org/hubfs/New%20Refrigerants.jpeg)](https://blog.copper.org/hvac/r/midea-split-air-conditioning-system-reduced-charge-with-4-mm-copper-tubes) ## [Case Study: Midea Split Air Conditioning System Reduced Charge with 4 mm Copper Tubes](https://blog.copper.org/hvac/r/midea-split-air-conditioning-system-reduced-charge-with-4-mm-copper-tubes) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Jul 9, 2024, 12:16:36 PM As the industry shifts towards smaller-diameter tubing to improve heat transfer in heat exchangers, ... [Read more](https://blog.copper.org/hvac/r/midea-split-air-conditioning-system-reduced-charge-with-4-mm-copper-tubes) [![Small-diameter copper tubes in HVAC/R equipment](https://blog.copper.org/hubfs/AdobeStock_623944304.jpeg)](https://blog.copper.org/hvac/r/optimizing-heat-exchanger-components) ## [Optimizing Heat Exchanger Components for Reduced Refrigerant Charge](https://blog.copper.org/hvac/r/optimizing-heat-exchanger-components) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Jun 3, 2024, 5:49:43 PM A Comparative Study of Small-Diameter Copper Tubes with LU-VE With growing concerns about environmen... [Read more](https://blog.copper.org/hvac/r/optimizing-heat-exchanger-components) [![Small-diameter copper tubes in HVAC/R equipment](https://lh7-us.googleusercontent.com/fUv3oKz1AvNmy47EUA5iVi0Nu44iAQjhEANpBBi3JBX8cPitjslUWHYetX4pEfLUixKlmEc4Nzp4I4czht_HXfnflMtSYch6iFIKG0jCUZa4IsXSSdYh5A5B5wsJ95_gP77VmeCSzgY5fvfVqZPZig)](https://blog.copper.org/hvac/r/considerations-when-selecting-a-new-refrigerant) ## [Considerations When Selecting a New Refrigerant](https://blog.copper.org/hvac/r/considerations-when-selecting-a-new-refrigerant) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) May 8, 2024, 12:30:00 PM Equipment manufacturers must consider several crucial factors to ensure optimal performance, safety,... [Read more](https://blog.copper.org/hvac/r/considerations-when-selecting-a-new-refrigerant) [![Small-diameter copper tubes in HVAC/R equipment](https://lh7-us.googleusercontent.com/i5C-DYdFkARpYvpA-plZVSgJgZUtJZ9mxbi3jbKdo17zjV4WeBEbEEQH7M7h27AsVfaFeltBtLiYV8adYlIzJvsyIoSPprYGLHUQKLZa902D0FaUwBJMpp8lJsxnmrhigail82yTdPgh)](https://blog.copper.org/hvac/r/navigating-policy-shifts-the-impact-of-transitioning-to-alternative-refrigerants) ## [Navigating Policy Shifts: The Impact of Transitioning to Alternative Refrigerants](https://blog.copper.org/hvac/r/navigating-policy-shifts-the-impact-of-transitioning-to-alternative-refrigerants) [Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) Apr 18, 2024, 12:14:57 PM The Environmental Protection Agency (EPA) continually sets new targets, challenging industries to ad... [Read more](https://blog.copper.org/hvac/r/navigating-policy-shifts-the-impact-of-transitioning-to-alternative-refrigerants) ## Over 350 Other HVAC/R OEM Professionals Receive this Blog Monthly Think Small, Save Big with Copper Tubes: The Efficient Solution for a Greener Future! [SUBSCRIBE](https://share.hsforms.com/1ghctSXBJSyOSWsYU0YgbLQctv7o) [facebook-f icon](https://www.facebook.com/CopperDevelopment) [linkedin-in icon](https://www.linkedin.com/company/2658439/) [Twitter icon](https://twitter.com/thinkcopperUS) --- [![CDA_Logo_Copper_RGB](https://blog.copper.org/hs-fs/hubfs/CDA_Logo_Copper_RGB.png?width=250&height=57&name=CDA_Logo_Copper_RGB.png "CDA_Logo_Copper_RGB")](https://www.copper.org/) Copyright © 2026, Copper Development Association