Zemlak, drafted in to cover for injured Stephen Murphy, has so far helped his new side to three wins - including two shut-outs and a big win over league leaders Nottingham Panthers.
Giants head coach Doug Christiansen has been full of praise for his latest signing, especially given that Zemlak has saved 94 out of the 98 shots made against him to date.
"Zemmer has played great for us," Christiansen said.
"He has worked extremely hard since being in Belfast and has been outstanding. We'll need him to continue his play this weekend against Braehead and Edinburgh."
Hopefully Murph heals up soon - there's nothing wrong with competition between the pipes.
Garrett Zemlak, Belfast Giants
First up is the game against Braehead on Friday night and Zemlak told UTV that former allegiances will go out the window the minute the two sides take to the ice at the Odyssey Arena.
"Competitive spirit just comes out, it doesn't matter who you're playing - buddies or not - you just want to win," he said.
Having been forced to wear Murphy's jersey in his opening game, due to his last-minute arrival in Belfast, Zemlak is now kitted out with his own name and number as he looks to keep impressing.
"I'm getting a lot of credit this last week for the games, but this team is really good and they're making my job easy," he said.
"So I'm just gonna roll with that ..."
The Giants are now just two points behind the Panthers in the Elite League table and will be hoping for a big boost from the home crowd at both of the weekend's games to help them stay in contention for back-to-back title wins.