Hello,
Just started this year my small hoby - composite part production. Mainly produce parts using resin infusion process, as Pre-Preg is more expensive. But starting to think more and more about it.
Built this small oven (3000mm x 2000mm x 2000mm) for post curing, it is not fully finished but going towards completion:
Heating will be done with external heating gas burner. Inside there will be fan, to move hot air inside, and air outlet to avoid pressure build up inside.
Thermal control will be manual
No other sollution could be found for such big owen.
Here is a photo of small workshop with several upcoming build'ups (Civic for time atack, BMW for drift, Supra for daily fun, Black civic for sale).