1. Enter the Standard Heat-Loss Value for Gables:
 		 
2. Enter the Standard Heat-Loss Value for the Roof: 
3. Enter the Standard Heat-Loss Value for the Walls (transparent): 
4. Enter the Standard Heat-Loss Value for the Curtain Walls: 
5. Enter the Climate Factor (K value) in the box:
6. Choose the Greenhouse Construction factor (C) from the list:
7. Choose the Curtain-Wall Construction factor (CW):
*Standard heat-loss tables can either be found in your text book
or by following the appropriate link above. Just click on the greenhouse
 structure name to view appropriate table.

All calculations based on:
Nelson, P.V. Greenhouse Operation & Management. 6th ed. Upper Saddle River: Prentice Hall, 2003.