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Delivery Update June 25th 2026
Interislander ferry sailings have been suspended due to severe weather across New Zealand.
Delivery delays of at least 3–4 days are expected due to disruptions affecting freight between the North and South Islands. We appreciate your patience and understanding while these conditions continue.

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Ducted Heat Pump Plenums

HVAC plenums are essential for distributing air efficiently in ducted air conditioning and heat pump systems. Selecting the right plenum ensures balanced airflow, quieter operation, and overall system performance.

Our range is designed to suit different indoor unit capacities, making it easy to choose the right option for your installation:

  • Mini Plenums — suited to indoor units up to 4.9kW
  • Standard Plenums — suited to indoor units 5.0kW and above
  • Large Body Plenums — for higher airflow requirements and specialised applications

All plenums are available in multiple configurations, including base units, pre-fitted spigots, and dampered outlets, helping streamline installation while maintaining control over airflow.

Manufactured onsite in our factory, using quality materials, our plenums are built for durability, consistency, and fast installation across a wide range of residential and commercial projects.

Need something specific? We also offer custom plenum fabrication to suit unique layouts and system requirements.

Mini Plenums — For units up to 4.9kW
Standard Plenums — For units 5.0kW and above
Large & Custom Plenums
Plenum Fabrication Materials