1) A hair cloth on which grain was laid in a drying kiln. It had other uses and was often linked with ‘steep fat’ in inventories, which might suggest a role in brewing.
1487 not leful ... to wirk eny maner stuffe as ropes, kilne heris or eny other thing to that craft belonging, York
1511 j par le kilnehaires , Beckwithshaw
1528 To John my son a stepe fatt, a par of kilne haires , Sherburn in Elmet
1555 to John Humblocke my sonne one paire of kilne haires & a stepefatt , Burton Salmon
1625 Item a steep fatt a pair of killhires a window cloth , Knaresborough. It gave rise to an occupational term: 1701 a kilnhairmaker , Bowling.