With increasingly stringent strict codes and economic pressure to design energy efficient buildings, every little bit of savings can go a long way. In Massachusetts 25-35% of energy use in buildings comes from space heating. Conventional boilers typical run a t 70%-80% efficiency cost you a significant amount from lost heat. Modern condensing boilers run at 90%-95% efficiency by capturing the latent heat that conventional boilers exhaust. This presentation will be an in-depth discussion of the technological advances, design implications, and potential return on investment of today’s high efficiency/condensing boilers. Lee Cook is Vice President of Technical Sales for CAPCO Energy Supply in Woburn, MA. CAPCO supply is a wholesale supplier of plumbing, heating, geothermal and solar supplies for the Greater Boston area. Since 1978, CAPCO has been providing their clients with a hands-on problem solving approach backed by solid technical support and unparalleled client service. Mr. Cook is a graduate of Stonehill Co