National Environmental Standards (NES)
The National Environmental Standards (NES) require a minimum 65% efficiency and maximum 1.5 grams emission requirement on all wood fires installed on properties with a land area of less than two hectares.
There are certain regions in New Zealand that have more stringent by-laws in place. For example, Central Otago Air Shed 1 is limited to 0.7 grams and Canterbury is limited to 1 gram. Please check with your local council on the emission limits within your region.
Metro fires offer a large range of NES and ECan approved wood fires. The majority of these can be fitted with a wetback and still meet NES and ECan compliance. In addition to these clean air approved models, Metro also offer a range of LTD models for rural home owners wanting longer burn times and full capacity wetbacks.
Clean Air Approved Models
Specifically designed for properties less than two hectares in size. All clean air approved models surpass the NES requirement of 1.5gms/kg and a minimum efficiency requirement of 65%, with the majority of these models also meeting NES compliance with a wetback fitted. Clean air models feature a different design spec to their LTD counterparts, with the emphasis on burning hot and clean. Utilising advanced combustion technology and a complex firebox design which operates at efficient combustion temperatures keeping emission levels to a minimum and improving heat output into your home.
Metro’s clean air fireboxes utilise a secondary burn chamber and secondary air supply combination unique to Metro, which eliminates the ongoing and costly replacement of secondary air tubes used by most other brands.
Specifically designed for lifestyle and rural properties with a land area of two hectares or greater (non clean air zones). The major features of these LTD models is their longer burn time capabilities and the larger capacity wetbacks providing up to 4kW for water heating. LTD Metro’s meet AS/NZS4013:1999 compliance, and although this is still the current Australian & New Zealand emission standard, the National Environmental Standards (NES) takes precedence on all installations on properties with a land area of less than two hectares. LTD Metro’s can therefore only be installed on a property with a land area of two hectares or greater.