I am going to call the contractor who I feel will do the best job on our new HVAC system. He has given me a quote on the following Tempstar system and doing some duct mods.

Tempstar two-stage 96% communicating gas furnace
two-stage 17 SEER Heat Pump
Observer communicating thermostat
4" Filter system

I am going to have him send me the AHRI for whatever coil is to be used to make sure it gets the numbers he stated.

Is there anything else as far as the system goes that I should ask him about? Outside temp sensor, humdity on demand ect.

He has done all the required calculations, just want to make sure I don't overlook anything on this big expense.