He is flatting for the first time, working on expanding his repertoire in the kitchen and just a little bit homesick.
The proud Southlander has a girlfriend in Invercargill and leaving his family and friends was a wrench.
There are probably no dry towels to be found in the flat either, but there is lot to look forward to this summer.
The New Zealand under-19 representative has an Otago contract this season and plans to make the most of any playing opportunities that come his way.
The young fast bowler, just 17 at the time, made an immediate impact for the Volts during his provincial debut in a twenty/20 match against Northern Districts in January.
He took three for 19 from four overs, picking up the wickets of Kane Williamson, Tim Southee and Brad Wilson.
"It was a bit surreal, to be honest," Duffy said.
"I was sitting at home and didn't expect to be playing."
The stunned teenager said there had been no indication or even a heads up from the coach.
Before he had time to digest the news, he was "out there with guys like [Brendon] McCullum".
"It was unreal."
Also in the Otago line-up that day was his school teacher Mr Smith, first name Craig, or Spud to his mates.
Watching Duffy's debut was like peeking into the future. He used every inch of his 1.93m frame to generate good bounce and pace and took the Northern Districts' top order by surprise.
He made his first-class debut at the end of the summer against Wellington and picked up a couple of wickets in a solid display.
There is no guarantee Duffy will be named in the Otago side for its Plunket Shield opener against Canterbury in Rangiora beginning on Saturday. In fact, he may miss out, but he will get opportunities this summer.
"I'm not sure how much I'll be playing this year but I'd like to get a consistent spot in the team.
"That's the main goal. Hopefully, when I get my chance, I'll take it."
The right-armer has been clocked at 135kmh and should get faster as his body develops.
But his major weapon is bounce and he has added an outswinger to his arsenal.
At the ICC under-19 world cup in Townsville in August, Duffy took eight wickets at an average of 21.25 in five matches, so he has plenty of raw potential.
Technically, Duffy is still at school. He left Southland Boys' High School to move to Dunedin and take up his contract but plans to return in November to sit his NCEA level three exams.
Next year, he plans to begin a commerce degree at the University of Otago.
But in the meantime he has the best seasonal job - ever.
"If you had told me last year I was going to get a contract this season, I wouldn't have believed you. So many things have happened and it is pretty awesome. I'm doing what I love for money."
Duffy flats with team-mates Michael Bracewell and Nick Beard.
"It was an emotional time [leaving home], with my mum and my girlfriend, but I go home lots so it is OK."
The Otago team enjoyed some time away from serious training yesterday with a barbecue at the North East Valley Bowling Club.
