Patent ID: 7258606

Claim:
A method of retrofitting an integrated through-wall air conditioning and heating unit comprising, providing an integrated through-wall air conditioning and heating unit, the air conditioning and heating unit including a sleeve secured within and through an exterior wall of a building and an integrated heating and cooling component removably secured within the sleeve, the sleeve defining a passageway through the sleeve for moving air between an exterior of the building and the interior of the building, removing the integrated heating and cooling component from the sleeve, providing a 110/220 volt household electrical outlet detachably fitted with an electrical outlet adapter pan, providing a through-wall air conditioning unit detachably fitted with an air conditioning adapter collar, providing a heater unit detachably fitted with a heater unit adapter pan, and detachably connecting the electrical outlet adapter pan, the air conditioning adapter collar and the heater unit adapter pan within the passageway, wherein each of the electrical outlet, the air conditioning unit and the heater unit is independently removable from the passageway.