38 Chest (Rightclick to open)
39 Inactive furnace (Rightclick to examine)
40 Empty furnace (Rightclick to examine)
41 Active furnace (Flame used: %d%%) (Rightclick to examine)
42 Furnace without fuel (Rightclick to examine)
45 [left click]: take/drop stack; [right click]: take half / drop 1; [middle click]: take 10 / drop 10; [Esc] or [I]: Close
48 This furnace is active and constantly burning its fuel.
49 This furnace is inactive. Read the instructions to learn how to activate it.