New Zealand's leading provider of home ventilation systems, dedicated to creating drier, warmer, and healthier homes since 2003.
ŠSD is a New Zealand-based company specializing in home ventilation and air quality solutions. Established in 2003 under Cristal Air International Limited, HRV’s mission is to make every home healthier by reducing condensation, dampness, and mold.
Their core product line includes patented heat recovery ventilation (MVHR) systems, air filtration units, and heat transfer kits designed to circulate fresh, filtered air throughout the living space. By managing indoor air quality and moisture levels, HRV systems help improve energy efficiency and living comfort year-round for Kiwi families.
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It is recommended to check and replace your HRV system filter every 2 years to ensure optimal performance and air quality. Some models may suggest a check every 6 months depending on usage.
Ventilation levels allow you to adjust airflow based on the season. Levels 1-3 are generally used for spring, summer, and autumn. Higher levels (3-6) are recommended for winter to help clear condensation when the roof cavity temperature is cooler.
Burnt Toast mode overrides the system to run the fan at 100% speed for one hour. This is useful for quickly clearing odors, smoke, or excessive condensation.
This icon illuminates based on a timer to remind you that the system is due for a filter change or service, typically every 24 months. Once the filter is changed, the indicator can be reset via the keypad menu.