Hello,
Thank you for reaching out and letting us know your inquiry if this Samsung microwave requires ducting. We understand that this information may be essential for you to know. We're here to help.
As per checking, this microwave oven is designed for adaptation to the following three types of ventilation:
A. Outside Top Exhaust (Vertical Duct)
B. Recirculating (Non-Vented Ductless)
C. Outside Back Exhaust (Horizontal Duct
See pages 11-14 of the guide to know more about the installation process.
https://downloadcenter.samsung.com/content/EM/202202/20220223181324341/SMH8165_XAA_DE68-03587A-12_EN_220120.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: 1144315124
-Angelica