NO.  This will not void any manufacturers warranties. The Federal Trade Commission’s Magnusson-Moss Warranty Act (P.L. 93-637) states that a manufacturer cannot void or disavow a warranty due to an added-on, second-party product unless it is proven that the second-party product does, in fact, damage equipment and notifies the second-party manufacturer and its customers. Zhydrocool, nor any of its customers, has ever received any such notice or letter from any manufacturer regarding issues of a condenser being affected by the Cool-n-Save® Air Conditioner Pre-Cooling System.