I am installing a 4 ton system in my home and the guy helping says he likes SpacePak (ESP-4860 GH4) better for the handler instead of the Unico (MB4860L+CB) with the Unico (MC 4860 cm), but wants Unico for jet tube and most everything else. Any thoughts on this? He hasn't installed a high velocity for about 10 years, but in the area he used to live he installed about 300 of them. Not sure if there has been many changes over those years on jet tube or air handlers.
I have a Burderus Furnace, so I am thinking no heat pump, but am open for suggestions on that as well.
My home is not a good home for conventional, so that decision has been made.
Thanks for any help,