Cooking with gas became popular in New Zealand from the 1880s, with local Councils often providing the infrastructure and service. To make sure the service remained profitable, Councils advertised the benefits of gas to those still using coal ranges.
The Levin Borough Council used this advertising slide in cinemas to spread the word about the benefits of gas cooking. Other slides in the series (available to view on Kete) talk about the virtues of gas for hot water supply.
Local Government lost control of gas (and electricity) supply during government reforms in 1989.