\u003c/strong>Ionel Petrus is a licensed professional engineer who has more than 13 years of mechanical design experience. In addition to being the mechanical discipline leader in SmithGroup’s Washington, D.C., office, he is also a LEED AP and a certified energy manager. His experience includes designing HVAC systems for commercial buildings, research laboratories, health care facilities, and museums. He can be contacted at \u003ca href=\"mailto:ionel.petrus@smithgroup.com?Subject=ES%20-%20Magazine\" target=\"_blank\">ionel.petrus@smithgroup.com.\u003c/a>\u003c/h4>"},"cl":"text p-_Js1xJSc","type":"text"},{"key":"eib6IvJZa3E","content":{"src":{"ratio":null,"url":"https://cdn.vev.design/private/KaxzywoIf0Rx41JdO6oEbX8EsUI3/images/D11Ejqz0v/2100.png","key":"D11Ejqz0v"}},"cl":"image","type":"image"},{"key":"e77SB6NB-9a","content":{"text":"\u003cp >\u003cem >Lead photo [DSCimage][iStock / Getty Images Plus] via \u003c/em>\u003ca href=\"https://www.gettyimages.com/detail/photo/engineer-under-checking-the-industry-cooling-tower-royalty-free-image/1269801208\" rel=\"noopener external\" target=\"_blank\">\u003cem >Getty Images\u003c/em>\u003c/a>\u003c/p>"},"cl":"text","type":"text"},{"key":"eUU__XgxhBQ","content":{"cont":{"desktop":{"params":{"updated":1608217389567,"trigger":"Load","LoadAnimation":{"preset":"slide","delay":0.3,"opacity":[0,1],"easing":"easeOutQuart","once":true,"translateY":["6%","0"],"duration":1}}},"tablet":{"params":{"LoadAnimation":{"delay":0.3,"translateY":["6%","0"],"once":true,"duration":1,"preset":"slide","opacity":[0,1],"easing":"easeOutQuart"},"updated":1608217389567,"trigger":"Load"}},"mobile":{"params":{"LoadAnimation":{"translateY":["6%","0"],"duration":1,"once":true,"delay":0.3,"preset":"slide","opacity":[0,1],"easing":"easeOutQuart"},"updated":1608217389567,"trigger":"Load"}}}},"cl":"w75y8u1c","type":"w75y8u1c"},{"key":"eqvnw1xprs0","cl":"section","type":"section","children":["eWv90QLYuKu","eib6IvJZa3E","e77SB6NB-9a"],"actions":["eUU__XgxhBQ"]},{"key":"emuVYaMpGZs","content":{"link":{"page":"pE5kg5KVNFB","mode":0}},"cl":"external-link","type":"external-link"},{"key":"edk0pWS5Xkd","content":{"text":"\u003cdiv>\u003cp >Table Of Contents\u003c/p>\u003c/div>"},"cl":"text","type":"text","actions":["emuVYaMpGZs"]},{"key":"eppWGpph9Wj","content":{"text":"\u003cp >December 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