The Flames lead 2-1 in the best-of-seven series. Game 4 is Thursday night, also in Anaheim.
The Ducks were 2-for-9 on the power play, including scoring once in the two times they had a two-man advantage. Anaheim goalie Jean-Sebastien Giguere gave up five scores on 24 shots.
Five players scored for Calgary, and coach Darryl Sutter, asked who played especially well, said, "I don't think you can single out anybody. You can single out 27 minutes of special teams, and that's where it paid off."
He added, "If they are going to call this many penalties, it's going to put a lot of pressure on goalies during this series."
Twelve penalties totaling 27 minutes were called against the Flames, and 10 penalties for 23 minutes against the Ducks. Calgary goalie Miikka Kiprusoff stopped 27 shots.
"Thank goodness our power play smartened up; it's a big part of our game," said Regehr, who gave the Flames a three-goal pad when he scored just 34 seconds after teammate Darren McCarty in the third period.
"There are a lot of penalties being called and we need to continue to improve on special teams," Regehr added.
Rookie defenseman Francois Beauchemin provided all the Ducks' offense, becoming the first Anaheim rookie to notch two goals in a playoff game.
"I don't think we got our game going at all the whole night," Beauchemin said.
Ducks defenseman Scott Niedermayer said, "Being in the penalty box as much as we were is tough. But we've got to find a way to stay out and to do a better job of killing penalties."
McCarty scored his second goal of the series 4:59 into the final period, then Regehr quickly added his first.
Giguere said he needs to do a better job and, "As a team, we need to be better on the penalty kill. We need to stay disciplined and work harder as a group to kill penalties."
Anaheim coach Randy Carlyle, asked about Giguere's play, said, "I think he fit in with our hockey club. Tonight we weren't good enough."
Disappointed in the Ducks' performance, Carlyle said, "Is it the end of the world? No, they're up 2-1 in the series. The bottom line is we have to prepare ourselves for more of a team effort than we got from our group."
The first four goals came during power plays -- two by each team -- and included Beauchemin's second-period score with the Ducks holding a two-man advantage.
Beauchemin's second goal of the game and the series evened it 2-2 in the second period after Huselius had put Calgary ahead.
The teams traded power-play goals in the opening period, with Langkow getting the Flames on the board at 14:01.
Beauchemin then scored at 17:26 to end Anaheim's 0-for-12 drought on power plays during the series, one-timing a 50-footer past Kiprusoff.
The teams will return to Calgary to play the fifth game on
Saturday night. ... Giguere sat out Calgary's series-opening 2-1
overtime victory because of an undisclosed injury. He returned to
stop 22 shots in the Ducks' 4-3 win in Game 2. ... Langkow's
first-period score was his ninth career playoff goal. ... The teams
split their regular-season meetings 2-2.