Lava Furnace Mod 1.7.10. Simply place the fuel block below a vanilla furnace for it to work without any other fuel item needed.
Screenshots:

Crafting Recipes:
Recommend that you should install Just Enough Items (for mods using Forge) or Roughly Enough Items (for mods using Fabric) to view the full recipes included in this mod
How to install Lava Furnace Mod 1.7.10
Download Links for Lava Furnace Mod 1.7.10
For Minecraft 1.7.10