no problem binding to my network but once the furnace tried to use the crystal, the game crashed. Repeated several times, as soon as the crystal tries to draw on the LP network the game crashes. not sure if it makes a difference but I was using a slab furnace.

A crash log would have been nice.

Well known bug in tinkers end. They don't handle furnace code correctly, so this happens. The mod author already knows about this, and future version of tinkers construct won't have this problem.