In Wrath of the Lich King it is item level 226 and requires level 80. In MoP Classic it is item level 200, requires level 80 and sells to vendors for 1c.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Heroes' Frostfire Robe Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Heroes' Frostfire Robe suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Similar Items
The 10 items nearest to Heroes' Frostfire Robe (item level 35) in item level among Armor > Cloth, Chest slot, from item level 32 to 37.
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Heroes' Frostfire Robe Fits
Other Items Named Heroes' Frostfire Robe
1 other item in the current build is also called Heroes' Frostfire Robe. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Blizzard numbers items as they are created, so the named items next to ID 39492 (39487 to 39497) were usually added in the same batch as Heroes' Frostfire Robe: the same quest line, zone, vendor or reward set.