Home Automation Heat Consumption Calc

[HomeTechNewbie]

Hi guys, 
 
I am routing all my wiring to a closet that is 5 by 4 room (10 feet high).  My HVAC guy has asked how much heat is going to be produced by this equipment.  BTUs? 
 
Plan is as follows: 
 
1) OmniPro2  (40 window/security wires) 
2) OmniPro Expansion Board
3) Somfy Systems
4) HVAC control board
5) HIFI2 by HAI 
6) POE Router 
7) Security Camera Wires 
8) TV Cable Connections 
9) Networked Computer 
10) ...
 
 
any clue how i calculate this? 
 
Thanks for your help!  

 

[mdonovan]

http://www.ehow.com/how_6038931_calculate-btu-output-watts.html