Jarome Iginla, centre, and David Moss celebrate Moss's goal early in the third period. (Adrian Wyld/Canadian Press)

Jarome Iginla scored twice in the first period and David Moss notched his first career hat trick to lead the Calgary Flames to a 6-3 win over the Senators on Tuesday night in Ottawa.

Iginla supplied the bookends to a wild opening period that saw the teams combine for five goals. The captain's second of the night, with 4:11 left in the frame, gave the Flames a 3-2 lead they wouldn't relinquish.

Moss scored insurance markers early in the second and third periods, and completed the hat trick with an empty netter in the final seconds.

Warren Peters also scored a goal, his first in the NHL, to help get Calgary off to a successful start on its season-high seven-game road trip.

"With such a long road trip it's nice to get off to a good start and not two losses in a row," Iginla said. "It's great to see the young guys come up and play so well. It's a huge boost for our team."

Miikka Kiprusoff made 22 saves to bounce back from a poor outing Sunday against Tampa Bay in which he allowed five goals on 19 shots and got the hook in an 8-6 loss.

Calgary (39-18-6), which is being forced out of the Saddledome so the arena can host the Brier beginning this weekend, has won seven of its last nine and leads the Northwest Division by a comfortable margin.

Spezza challenges Phaneuf

Filip Kuba and Mike Fisher scored in the first period for the Senators, and Nick Foligno got one in third-period garbage time.

Ottawa (23-29-10) was well outside the Eastern Conference playoff picture even before dropping six of its last seven (1-4-2).

Alex Auld looked shaky in allowing four goals on 15 shots before leaving the game due to sickness. Coach Cory Clouston said he was unaware of any illness until after the second period.

"This morning he was fine," Clouston said. "No one said anything until the second intermission and then we were told he was sick."

Jason Spezza scored some points with his coach by dropping the gloves with Calgary's Dion Phaneuf after the rugged defenceman caught Dany Heatley with a big check.

"What I liked was he jumped in for his teammate," Clouston said. "He showed he wants to be a team guy and that goes a long way in the dressing room, and it shows he's willing to try and work on his game and work on his overall persona."

Iginla gets things rolling

Iginla kicked off the first-period scoring spree 2:18 in, taking Matthew Lombardi's feed near the crease and beating Auld.

Kuba tied it on the power play three minutes later by sneaking a weak shot beneath Kiprusoff from close range, and Fisher put Ottawa ahead near the midpoint of the period when his long shot found its way past the Calgary goalie.

Peters's first big-league goal probably wasn't as pretty as he'd pictured it, but it tied the game at 2-2. The rookie spun and threw the puck at the net from a bad angle, and it bounced in off Auld's skate.

"Peters' goal was a big boost," Iginla said. "They started having some momentum and they were starting to come and for us to get that goal back was a big goal."

Iginla potted his second of the night and 28th of the season in a more stylish fashion, roofing a shot from the slot area to put the Flames ahead for good.

Moss made it a two-goal lead 4:57 into the second when he took Craig Conroy's feed off a rush and beat Auld to the far side. Moss used the power play to scored his 18th of the season to stretch Calgary's advantage to 5-2 with just 2:04 off the clock in the third.

Foligno made the score look more respectable when he was credited with his 11th of the season on a power play with five minutes left in the game. Recently reacquired forward Mike Comrie neatly deflected Brendan Bell's point shot, which glanced off Foligno and into the net.