[mkayokay]

When I visited the southern island of NZ in 2019 I was shocked how little insulated the houses I stayed in were, considering that the winters are quite cold. For example, most windows only had 1 pane tech. Whereas here in Europe modern windows use 3 panes for better insulation and sound filtering.

[muppetman]

Yup! This house has little insulation. We got the downstairs windows double glazed after we moved in but upstairs is still single pane. One day we'll change that... It's very bad for heating/cooling