Description Technical Specs Additional Resources Goodman strives to provide high performance, energy efficient and durable equipment. Your GSZ16 & ASPT will provide superior heating & cooling for years to come. With the new GSZ16 / ASPT SMART design, this system exceeds the new 2015 EPA laws. GSZ16 Technical SpecificationsASPT Technical Specifications GSZ16 - Installation Manual ASPT - Installation Manual GSZ16 - Warranty Certificate ASPT - Warranty Certificate