HELP WITH CABINET INCUBATOR

[badwhiskey]

I know it's hard to get a answer around here but could someone tell me how big of a heating unit from incu warehouse I need for a incubator the exact size of a sportsman but about 8" taller

 

[badwhiskey]

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[dbcooper02]

The Sportsman cabinets that I have use 225 watt coils, if that's any help. They cycle on 1/3, off 2/3 of the time in a well insulated, unheated, 10 X 12 room.