Is your wood burner past its expiry date?
... are no longer allowed Under the Canterbury Air Regional Plan, low-emission burners can be used for 20 years from installation (or 15 years in Timaru), after which they become non-compliant and can...
https://www.ecan.govt.nz/get-involved/news-and-events/2026/is-your-wood-burner-past-its-expiry-date