Trailing 2-0, Calgary pulled Smith for an extra attacker with 4:35 to play after a TV stoppage, but the Flames managed just two shots on goal.
"I guess with the timeout they thought they could draw something up and maybe catch us by surprise," Kuemper said. "But the guys did a great job defending."
• Kuemper, who didn't play in Arizona's three losses to Calgary this season before Thursday night, notched his third shutout of the season and the 14th of his NHL career. He also improved his record to 16-4-3 since New Year's Day.
"He's been unbelievable," Chychrun said. "He's a guy that makes it look so easy in that net. He's always so calm. He's just a calming presence back there. He's going to make the saves he should make, and I think that's something that's nice to rely on."
• Michael Grabner skated 17:40, took five shots on goal and delivered three hits in his first game in the lineup after suffering a serious eye injury vs. St. Louis on Dec. 1.
"It was a lot of fun," Grabner said. "It's been a while. I was sick of skating by myself out there, so it was nice to get back out there and play a meaningful game. (My vision) is a little bit different than it used to be, but I just tried to keep it simple out there."