FluxHeater is a mod that adds a single item: the Flux Heater. This item is charged with RF then placed in a fuel slot of a furnace (or any mod block that uses solid fuel). This enables powering blocks that would only take solid fuel with RF. The amount of burn time can be configured per TileEntity.
Recipe for the Flux Heater varies depending of what mods are installed, NEI is recommended to look up the recipe.
