I believe we have an 11kw Day/Night two zone included in our package. We wanted to upgrade to an 18kw 3 phase Daikin system with 6 zones and My Air 3. That was going to cost nearly 10k extra. We went for the 16kw 3 phase Toshiba sytem with 6 zones My Air 3 and individual temperature controllers for jusr over 6.5k extra from memory.