A:Answer Hi Nan.
Thank you for reaching out regarding your Samsung - Flex Duo™ 5.8 cu. ft. Self-Cleaning Freestanding Gas Convection Range if the range comes with a propane gas conversion kit; is it needed or purchased separately? Regarding your concern, the conversion kit is sold individually, which needs to be done by a licensed person. If you wish to change this range to liquid propane, it will be your decision.
Here is a link to your user manual to further assist you. Please go to page 9.
https://downloadcenter.samsung.com/content/UM/202103/20210308175444705/NX7000K_VE_NX58M6850SS_AA_DG68-00909A-07_EN.pdf
Should you need more assistance, please feel free to get back to us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
Thank you for being a valued customer of Samsung. Have a great day.
Reference Ticket Number: 1144299290
^Camille