Meltem De-Centralised Heat Recovery

The Meltem through the wall De-centralised heat recovery ventilation system is an innovative solution where a centralised whole of home ducted system cannot be installed. The design makes it ideally suited to standard New Zealand contructed homes. No extra depth in exterior walls is necessary.

The precise engineering of the Meltem unit delivers a high level of benefits:


  • Up to 94 % heat recovery efficiency
  • High air flow 10-100 m³/h
  • Single or multi-room solution
  • Constant volume flow rate (suitable for multi-storey buildings
  • Excellent funding opportunities
  • Passive House Certified

  • Enthalpie heat exchanger with moisture recovery
  • Filter class ISO ePM1 60% (F7) as standard
  • Tested to VDI 6022 sheet 1 hygiene standards
  • Protection against moisture damage and mould growth

  • Inherent noise from LpA, 10 m²=8,4 dB (A)
  • Sound insulation D n,e,w up to 70 dB

  • Simple Installation
  • Low power consumption
  • Separate air filters for supply & extract air.
  • Optional allergy/pollen & carbon filters
  • Wireless boost extraction 

Meltem M-WRG-II ventilation units can be integrated into the building in a variety of ways. The units are mounted on the inside of an external wall. The best effect for comfort and energy efficiency is achieved if they are attached to the upper third of the wall approx. 300mm from the ceiling.  The units can be "flush mounted" or built-in. Fully mounted units in the wall and flush mounted installation can be carried out with special installation kits. 



Meltem Product Brochure - New