A Countdown store in Dunedin has been described as a "rotten cold" disgrace with staff forced to wear jackets and beanies to keep warm in frigid conditions.
A Countdown spokeswoman acknowledged the current heating system at its Andersons Bay store was old and not working as well as it could but said a replacement heating solution was due to land in New Zealand shortly.
A staff member who wished to remain anonymous told the Otago Daily Times you could see your breath at times in the store and often it was colder inside then outside.
Only black jackets were permitted to be worn by staff and they were not paid for by the supermarket. Even when the heater, which was powered by diesel, was working it was insufficient to heat the store, the staff member said.
Another anonymous source said the building was "like a fridge" in winter and the problem had been ongoing for more than four years.