PrintThe following pages in Section B of Lesson 8 will cover cooling and heating. Heat Movers Heat Pumps Air-Source Heat Pump or Air-to-Air Heat Pump Air-Source Heat Pump or Air-to-Air Heat Pump Examples Ground Source (Geothermal) Heat Pumps Classification of GHPs Factors Affecting the Type of GHP Loop Benefits of a GHP System Installation and Operating Costs of GHP Systems Solar Energy for Home Heating Active Solar Heating Systems Passive Solar Heating Systems Costs and Benefits Environmental Protection ‹ Direct or In-Situ Heating Systems up Heat Movers ›