Present embodiments relate to an appliance installation pan which provides multi-functional improvement for at least installation, collection of fluid, and direction of air flow to the appliance. The installation pan also improves installation by fixing the appliance to the pan and the pan to the mobile application structure, for example RV or marine craft. Further, the installation pan provides for a repeatable means of locating the appliance and consistent installation to reduce appliance problems that may be associated with incorrect installation.