You can check the best settings for Facebook here.
Facebook's maximum stream length is 8 hours.
Streaming to a Facebook profile is free, but a paid Restream plan is needed to unlock streaming to Facebook groups and pages.
You need to be an admin of the group or page you want to stream to.
How to automatically connect Facebook to Restream
Go to your home screen.
Click Add Destination and click Facebook.
Select whether you want to connect to your Facebook profile, or a group or page that your profile is an admin of.
You will automatically be led to Facebook where you will log in and allow Restream to access your Facebook account.
Select the visibility of your streams as public to prevent any issues with Restream's permissions and click "Continue".
Allow Restream to manage your pages and groups. Ensure you are granting access and checking all groups and pages you'd like to stream to, as this will let us start the stream for you.
You will then be transferred back to the Restream Dashboard.
If you select your profile, it will automatically be added as a destination.
If you select to connect to a group or public page, you'll be directed to choose which group or page you want to add.