Furnace/DV

Bits 	Values
0x10x20x4	
A three-bit field storing a value from 2 to 5:
* 2: Furnace facing north
* 3: Furnace facing south
* 4: Furnace facing west
* 5: Furnace facing east
Invalid values default to 2.
0x8 	Unused.
Category:Data value pages
zh:熔炉/DV