http://forums.bukkit.org/threads/mech-dwarfforge-v1-5-run-furnaces-on-lava-1000.21843/
Features:
It is a plugin that was on another server I thought you would like.
Features:
- Runs forever! No fuel/buckets needed.
- However, Forges can be required to operate with fuel, which is pulled from the input chest along with raw materials.
- Punching the furnace toggles it on/off.
- Dwarf Forges stack vertically. Lava only necessary under the lowest forge. (Lava is powerful, man!) Stacked forges can all access the same set of input/output chests.
- Input and output chests (left and right of forge, respectively, when facing it) supported. Double-size chests also supported. Additionally, you can "stack" horizontally to access nearby chests.
- Stacking limits are configurable (defaults: 3 high, 4 wide).
- Can change the cooking time: warp speed!
- Use a lever behind the chest to trigger redstone power when items are moved into the output chest.
- Blocks in a short, 3-block radius from any Dwarf Forge are protected against fire from lava.
- Supports Permissions. Without Permissions, configurable as ops-only or everyone.
It is a plugin that was on another server I thought you would like.