1) Stale, dirty and moist air is extracted from the rooms of the house via unobtrusive ceiling or wall mounted louvred vents.
2) The extracted air is ducted through the heat recovery unit’s counter flow heat exchanger which removes heat from the air before it leaves the house through external vents.
3) Cool fresh air is brought into the house, filtered and then warmed using the water heater coil which transferred the heat recovered from the discharged air. An electrical heater adds additional heat as required to maintain a pleasant air temperature.
4) The warm, purified air is then ducted back through the house to the rooms in use and is quietly delivered through ceiling or wall supply registers, adjustable, louvred vents.