Whole House Ventilation Scenario

Heat Recovery Ventilation systems can provide you with whole house ventilation.

Heat recovery ventilation is basically the same as central extract ventilation but instead of the air entering the house via trickle vents in the windows, a second fan draws fresh air in and passes it through a heat exchanger and then sends it to the dry rooms in the house. Ideally the central unit will be sited in the roof space or garage or a cupboard. Flexible ducting in the ceiling void runs from this unit to each wet room, extracting the stale air, and to the dry rooms supplying fresh air. The extractor will provide a continuous low rate of air change, giving a steady flow of air throughout the house.
Typical Whole House Ventilation
  • Fresh outdoor air is taken into the HRV System which then passes through the filteration system to reduce the incidence of pollen and dust. (Blue on diagram)
  • Air removed from the house is passed through the HRV System to 'transfer' the heat to the Air taken in from outdoors, before being passed out the roof.
  • The heat exchanged warm air taken from outdoors is then carried to specific rooms (Orange on diagram)
  • Condensation from poorly ventilation rooms and smells are taken from rooms (i.e. Kitchen, Bathroom, Toilet) to be dispensed outside.