After she purchased this low-cost greenhouse kit, the owner was not able to grow anything because it was so inefficient. She turned to Ceres to upgrade the structure into a durable year-round residential greenhouse. The Ceres’ team retrofitted the greenhouse, adding insulation, durable polycarbonate roofing, and proper greenhouse siding materials. Ceres also installed a Ground to Air Heat Transfer (GAHT) system to provide efficient year-round heating and cooling. Today, the attached greenhouse is a lush, abundant year-round environment, and provides supplemental passive solar heating for the owner’s adjacent art studio.