This guide provides practical information to all those involved in designing, installing, operating and maintaining heating systems focussing on how to correctly apply electrified heating on current and future projects. It focuses on all forms of electrified heat (including heat pumps) for heating, but also other related approaches and technologies such as heat recovery, renewables and energy storage. It also draws on other areas such as building fabric, thermal comfort, electrical system considerations and the complex issue of using electrified heat to generate domestic hot water.