Hello allagash,
Thank you for reaching out and letting us know your inquiry if this oven has baking-type elements and if it requires ventilation. We understand that this information may be essential for you to know. We're here to help.
As per checking, this oven has a convection baking feature and doe not require ventilation.
For reference, see pages 20-50 of the user manual to know more about operating the oven.
https://downloadcenter.samsung.com/content/UM/201904/20190417153210498/NV51K7770S_AA_DG68-00857A-03_EN-MES-CFR.pdf
For other concerns, do not hesitate to reach out via our Support Channels below:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.commuity.samsung.com/t5/Samsung-Community/ct-p/us
Thank you, and stay safe!
Your Reference Ticket Number: 1144296709
-Angelica