Hi everyone, it's me, Iris, and I'm going to talk about the thing that the Burning Room is Garnet's room.
|The Burning Room is Garnet's Room|
|Title||The Burning Room is Garnet's Room|
|Date of Publication||February 11, 2016|
|Previous||Occupation of Lapis Lazulis on Homeworld|
|Next||Who is the Temple Fusion|
So, the first thing to support this theory is that only Garnet can access the room via the temple door.
Another hint is that Garnet can swim in lava (as seen in "Giant Woman"), further explaining this.
So, leave feedback in the comments! I'd love to hear what you say!