Feed The Beast Obsidian Generator. It is the tier 1 of liquid transport pipes provided by mekanism, with the lowest capacity of 1000 mb and pump rate of 100 mb/s. The heat generator is a machine added by mekanism, which is used to produce energy from combustible materials and lava (see usage). The exact list of materials varies depending on how many reactor glass and reactor port are used, as these blocks replace reactor frame: The generator needs flammable gases (e.g., hydrogen) to produce energy, which can be supplied manually via storage items, like the basic gas tank or through basic pressurized pipes. At least 40 reactor frame … The fusion reactor is a multiblock structure added by mekanism. Lava can be supplied manually via storage items like the basic gas tank or through basic fluid pipes.