Project Green State Farm Retail Complex STE.E HVAC Calculations Fri Apr 9 12:21:16 EDT 2010 The Btuh Gain for _ 163 _ SqFt of NorthEast and NorthWest Double Pane Glass = _ 11410 _ The Btuh Gain for _ 1000 _ SqFt of Wood R-13 & 1/2" Gypsum Wall Number 1 = _ 2300 _ The Btuh Gain for _ 1200 _ SqFt of Roof Only 5.25" - 6.5" R-19; Ceiling Number 1 = _ 6240 _ The Btuh Gain for _ 40 _ People = _ 400 _ There is no calculation for other appliances of known wattages / The Office Space Outside Fresh Air #4 = _ 800 _cfm / The Btuh Gain for Outside Fresh Air #4 = _ 24000 _ / The Total Outside Fresh Air CFM = _ 800 _ The Total BTUh Gain = _ 44350 _ The Total Tons of HVAC needed = _ 3.69583333333333 _