Commercial use-The use or consumption within that portion of a structure or other area which is for use other than a residential use.
Residential use-The use or consumption within that portion of a structure used as a home, dwelling, private residence, condominium, housing cooperative, mobile home, camper, summer home, motor home or similar place of abode. The term includes the use or consumption by a condominium association or housing cooperative association which acts on behalf of residents who are using the units as their personal residence.
61 Pa. Code § 32.25