Old kasyaire wall fan and heater, single phase needs to be here wired to a plug, adjustable mount button on top changes from fan to heater, unsure of steel it's made out of because it's quite heavy, was working before we cut cord and removed it as house was being demolished,has been in storage for years see pics for specs,good used cond.Check out my other listings having a huge clean out of retro,vintage and antiques lots to come