Gave estimates on an 16 seer and 20 seer variable speed speed. Both with and without adding zoning. Also mark is extending a back part of the house which is going to add more square footage. Introduced zoning as an option to keep home comfortable in every part of home. Also condenser is going to be moved and would need to install a new line set and Tstat wire. Also mentioned that if mark goes with the xc20 with zoning to replace the supply plenum would be included.