How do you remove and replace a heater in a 2007 Ford Edge?

To remove and replace the heater in a 2007 Ford Edge, start by disconnecting the battery and draining the coolant. Remove the dashboard and center console to access the heater core, then disconnect the heater hoses and electrical connectors. Carefully remove the old heater core, install the new one, and reassemble the components in reverse order. Finally, refill the coolant and reconnect the battery to complete the process.