Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of heme.
Synonyms:
exact_synonym:
positive regulation of haem biosynthetic process; positive regulation of heme anabolism; positive regulation of heme biosynthesis; positive regulation of heme formation; positive regulation of heme synthesis; up regulation of heme biosynthetic process; upregulation of heme biosynthetic process
narrow_synonym:
activation of heme biosynthetic process; stimulation of heme biosynthetic process