I just wanted to suggest more ways to craft (Empty)-cells. For example with stone or at least iron
Why? Because cells aren't very "cheap", and if you use a miner / a pump you will need a lot to pump all lava out. Tin is a very important ore, and you can't use cells again because they just disappear after used once. For example if you use cells to collect lava and you put it into your Geothermal Generator.
I know this text is pretty short, but I still hope this "idea" isn't too stupid
EDIT: Or at least adding more container to pump out the lava (buckets use to much place...)