Hi @nednutt,
Greetings from the Roku Community, and thanks for the inquiry!
We will be more than delighted to assist you further. To ensure your television isn't damaged by the heat, care must be taken to redirect the heat generated by the fireplace away from it.
For more information, check out this support article on choosing a wall mount for your Roku TV.
Please let us know if there's anything else we can help you with.
Kind regards,
John
John
Roku Community Moderator