Hi all , I've constructed my HX for my storage, and now I'm wondering if it will meet the demand of my 200k btu liquid to air HX? This kind of math is out of my ability. Its 7/8" soft copper, 32" high, 21" diameter and 14 full turns, 150' total for the 2 coils. A ball park calculation is all I'm looking for right now. At least before I sink it in the tank.