Packaged Units Products Contact Merts Heating & Air Conditioning to learn more about the many packaged products we have available. It’s easy to stay up to date on our latest promos and offers. Check out our social media here. Phone: 833-52MERTS 833-526-3787 708-887-9499 Illinois Location: 3102 Louis Sherman Dr Steger, IL 60475 Indiana Location: 528 Sheridan Street Crown Point, IN 46307 E-mail: info@mertsheating.com