Penny notched his second score of the game when he raced over the line in the corner and Chris Sandow added the extras to hand his side a 22-6 lead at the break.
Warrington extended their advantage when Penny completed his hat-trick within 10 minutes of the restart, and the hosts began to find their full fluency going forward as Ryan Atkins crossed the line.
Wheeler scored his second try of the game in the 59th minute and Joel Monaghan notched another to put the game beyond doubt for the Wolves.
The visitors scored two late consolation tries as Mark Minichiello notched a brace in five minutes, but Monaghan secured the comfortable win for his side with a late score. body check tags ::