Convector Engineering

Tom_108

Anyone know of any nice engineering formulas to predict (for instance) what 6 eight foot lengths of Argo Panel Trim 2-3/4' x 2-1/8" 60 aluminum fpi on 3/4' copper Element installed 3 wide and 2 high inside a 30" tall 8.5" deep metal enclosure (like a convector) with a 5" wide-open warm air opening the full width in the top and a 4" space in the bottom with 65 deg room air and 180 deg average water temperature will deliver in Btu/hr?? (just as an example....) or is everything empirical? Thanks!!