Right now, the Personal Burner Generator is an absolutely awesome addition. It's a great stopgap between when modular armour first opens up and when Portable Fission Reactors become available. Have you considered adding a Burner Generator that sits somewhere above Fission Generators and Fusion Generators, to close the gap between those as well, a little bit?

At 200KW and a 2x4 footprint, your current generator is worth 400KW vs. the Fission Generator's 750KW. The Fusion Reactor is 2.5MW, so a burner of the same size worth something like 500KW would be a minor improvement while still leaving much room for Fusion. Could lock it behind Space Science in Vanilla and Electromagnetic Science in Space Age.