Oscar Estupinan's first goals for Hull City set the hosts on their way to a second win in three unbeaten Championship games and left winless Norwich City with just one point from a sorry start to life back in the second tier.
The Colombian finished from close range late in the first half to put the Tigers ahead when a sloppy Max Aarons clearance fell kindly after hitting team-mate Andrew Omobamidele.
And Estupinan put an increasingly confident home side 2-0 up just after the hour, gleefully striking his second goal in English football from a goalmouth melee after an Ozan Tufan corner caused chaos.