The Research and Development (R&D) Roadmap for Emerging Heating, Ventilation, and Air-Conditioning (HVAC) Technologies provides recommendations to the Building Technologies Office (BTO) on R&D activities to pursue that will aid in achieving BTO’s energy savings goals. For HVAC, BTO targets 12% and 24% primary energy savings by 2020 and 2030, respectively. The recommended initiatives in the report each target one or more R&D needs for residential and commercial HVAC technologies and related systems, such as controls, distribution systems, and design, installation, operation, and maintenance practices. Each recommendation is built on direct input from industry stakeholders and research on the key challenges that must be addressed to achieve the specified savings targets. The recommended R&D initiatives collectively support innovations that will accelerate development of both near-term technological improvements and next-generation (i.e., transformational) technologies.