The following words and phrases when used in this act shall have the meanings given to them in this section unless the context clearly indicates otherwise:
"Apartment." A room or suite of two or more rooms, occupied or leased for occupation, or intended or designed to be occupied, as a domicile.
"Approved carbon monoxide alarm." The term includes:
"Fossil fuel." Coal, kerosene, oil, wood, fuel gases and other petroleum or hydrocarbon products which emit carbon monoxide as a by-product of combustion.
"Installed." A carbon monoxide alarm that is hardwired into the electrical wiring, directly plugged into an electrical outlet without a switch, other than a circuit breaker, or, if the alarm is battery-powered, attached to the wall or ceiling of a residential building, an apartment or a multifamily dwelling, in accordance with the Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment (NFPA) 720.
"Multifamily dwelling." Any house or building, or portion thereof, that is intended or designed to be occupied or leased for occupation, or occupied as a home or residence for three or more households living in separate apartments , and doing their cooking on the premises.
"Operational." Working and in service.
"Residential building." Detached one-family and two-family dwellings and multiple single-family dwellings which are not more than three stories in height with a separate means of egress, which includes accessory structures.
35 P.S. § 7222