Hey all.
I've been getting into making and editing mods for personal usage and am attempting to make a "structure" which is classified as type = "furnace" but I want my own "fuel" that can only be placed in this "furnace" and said "furnace" can only use this "fuel"

How do I go about doing this ...

Soon as a Treefarm grows to max and chest is full, FPS dies. SS attached.
https://gyazo.com/89a07fb8a7d3ed3ee7fbc10bf118adc6
https://gyazo.com/f452be2dabdb85bed4bdbb3ed6e65189
https://gyazo.com/6e18b2678a6fd24b709e4f67b8017540

Confirming what @michael-68438 said.

Solved by adding a smart network ...