Decarbonization entails various strategies to reduce direct and indirect carbon use related to mechanical systems – and electrification of heating is a key pillar in this effort. This presentation will detail how vapor compression chillers can be utilized to recover or source heat from air and water to replace fossil-fuel based boilers which are the incumbent source of heat for many buildings. You will learn about heat pump fundamentals, calculation of COP and its relation to heating cost, system sizing recommendations, and common equipment arrangements.