Shaft Miner /tg/station 13 Wiki
You can get plasma at exactly the heat you need for canister bombs by welding a plasma door in vacuum. Use an air pump to take it, then put [REDACTED] KPa into an empty large tank (the size of plasma, emergency O2, etc). You can then ignite it with a can of pure O2 set to release at KPa. This is the Shaft Miner''s canister bomb.