Uncontrolled heat sources, such as you wood fired Rayburn, require specialist installation.
Too many things to go wrong and when they do go wrong, they go wrong in a very bad way.
If you have no, or limited experience with the setup of these type of installations, then get someone who has.
I hope you're not in the same boat with the people that paid a small fortune for the appliance and are required to pay a 'Kings Ransom' for a correct and required installation.
PS: Small Fortune & Kings Ransom were terms used by a customer of mine to me in an email, when I quoted her the connection of her new Rayburn stove to her existing heating system.