HVAC
Hi, I am installing a new HVAC system in my house. I will be installing a 4 Ton heat pump in Maryland. I believe that is 1600 CFM's. I will be using the reducing plenum duct design. Currently, I have the following:
Metal Return Duct size:
12x28 @ 686fpm w/ 2 Return grills FILTERED @ 24x24
The...