I ran across a Derco (Grizzly) insert, model FPI-2 LEX/90. I believe they called this the Super Acheiver. Derco is no longer around, and I really need a manual for this unit. It's been stored outside and I need to check out the wiring, cat, heat brick layout, etc. If anybody has a link for the manual, or general information about this unit, it would be helpful. I know it's a catalytic unit, and this would be my first experience with one. If it needs much, I'm just gonna scrap it, cuz the parts for this thing seem pretty high.