Is it advisable to install a GHP system large enough to handle my total heating needs?
Your dealer/installer should provide a heating and cooling load calculation to guide your equipment selection. GHP systems are generally sized to meet all your cooling needs. Depending on heating needs, a GHP system usually supplies 80100 percent of your design heating load. Sizing the system to handle your entire heating needs may result in slightly lower heating costs, but the savings may not offset the added total of the larger system. Special consideration should be given to systems in the north where multiple capacity units should be considered to handle the large variation between heating and cooling loads.
