Of course, a hastily set up pill furnace like this would definitely not have earth fire.
Because tapping into earth fire is a very complex and huge project. Not only does it require choosing a special terrain, but it also consumes a massive amount of money. A minor leader like this simply couldn't afford it.
If one really needs to refine elixirs that demand high furnace heat, one could completely rent an alchemy room from the sect.
That would be much more cost-effective.
This pill furnace is mounted on a stove, beneath which are the ashes left from burning charcoal.
If I'm not mistaken, it's probably not used for alchemy. It's more likely used to process some medicinal herbs for transport or preservation.
"I have Abnormal Fire, as long as I have enough medicinal herbs, it's absolutely no problem to refine some elixirs." Chu Feng urgently wanted to refine a batch of elixirs to make a breakthrough to the Late-Stage Great Sword Master realm.