Faster furnace for all things, however there's a catch

There should be a new block called a "bellows" that can smelt as fast as you can click(-1/2 second per click or maybe only 1/4) where you press the side that will pump air, like a bellows, into the furnace. You can only click once per second, however. You can change the specified values, if you want, developers. It can be activated by a piston or a redstone signal. If you don't want super OP furnaces in the hands of afk-ers, you can change that if you want. The crafting recipe will be whatever you want, but it should include a furnace, and something like a fan. It will only accept a few types of fuel, like blaze rods, coal blocks, and kelp blocks.