Residential GeoExchange Heat Pump System Designers design systems that transfer energy between ground or water and residential buildings for the purposes of heating and cooling. Their design responsibilities include assessing the single-family house and site, determining the optimal equipment and configuration for the system, and collaborating with project-related occupations to ensure quality designs and installations. The authority and limitations of designers of GeoExchange heat pump systems for single-family houses differ among and within provinces/territories according to the authority having jurisdiction.