I am finally building a PC oven and need some help. Overall, it will have an inside area 24 cubic ft. How much wattage do I need to heat that in a timely fashion? Is there a general watts/cubic ft formula? Also, I was thinking of using two bake elements and a couple of stove eyes, using the stove eyes to fine-turn the heat once I reach curing temp. Basically, I have ordered 4 15 amp relays from Automation direct and plan control the unit using a PLC and PID. The unit is going to be situated horizontally,
(6′ L x 2′ h x 2′ w), so can I get by without a recirculating fan?