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Project № 1493 · 2025

Melbourne Zoo Butterfly House

Design and project management for replacement of end-of-life evaporative HVAC with electrified reverse-cycle ducted split system serving the tropical butterfly enclosure

Service · Sector
Consulting · Commercial
Interior of the Melbourne Zoo Butterfly House glasshouse enclosure showing the tropical planting and visitor pathway conditioned by the new HVAC system.

Electrifying the tropics inside Melbourne Zoo's heritage Butterfly House

Project story

Quantum Engineering Group was engaged by Zoos Victoria to provide mechanical engineering consultancy and project management for the upgrade of the Butterfly House HVAC system at Melbourne Zoo. The existing six evaporative cooling units with gas-fired heating coils had reached end-of-life and were unable to maintain the stable 28C and 70-75% humidity required to replicate the tropical environment for the butterflies and fruit doves. QEG delivered design development, full D&C tender documentation, contractor selection and on-site project management for an electrified solution comprising three reverse-cycle ducted split systems with fabric duct distribution, including coordination of electrical infrastructure upgrades with Kerdar Electrics. QEG ran weekly progress meetings with Zoos Victoria, the contractor (AC Hall Air Conditioning) and animal welfare staff to schedule noisy works around hatching fruit doves and butterfly management constraints, and issued the defects and incomplete works report at handover.

Equipment installed

  • 3 x 75 kW reverse-cycle ducted split systems (design intent) — installed as 4 x 60.5 kW air-cooled split ducted systems (Temperzone) per AC Hall alternative design
  • Fabric supply air ductwork
  • New MSSB and electrical wiring from upgraded Pillar 3 supply
  • Standalone BMS integrated into existing Priva system
  • Relocated humidifiers