(1) In a fire protection district with elected commissioners that maintains a fire department consisting wholly of personnel employed on a full-time, fully-paid basis, there shall be five fire commissioners. A fire protection district with an annual budget of ten million dollars or more may have seven fire commissioners.

(2)(a) If two positions are created on boards of fire commissioners by this section, such positions shall be filled initially as for a vacancy, except that the appointees shall draw lots, one appointee to serve until the next general fire district election after the appointment, at which two commissioners shall be elected for six-year terms, and the other appointee to serve until the second general fire district election after the appointment, at which two commissioners shall be elected for six-year terms.

(b) If four positions are created on boards of fire commissioners by this section, such positions shall be filled initially as for a vacancy, except that the appointees shall draw lots, three appointees to serve until the next general fire district election after the appointment, at which three commissioners shall be elected for six-year terms and two commissioners shall be elected for four-year terms, and the other appointee to serve until the second general fire district election after the appointment, at which two commissioners shall be elected for six-year terms.