ULEBs are required for new wood fire installations in many Clean Air Zones across New Zealand, including most of Christchurch. A ULEB is a cleaner, more efficient wood fireplace, tested using Canterbury Method 1 (CM1) to meet strict air quality standards. Yunca’s ULEB range combines low-emission performance with efficient home heating, giving homeowners a compliant wood fire option without compromising on warmth, quality or style.