Mechanical Ventilation Heat Recovery (MVHR)

MVHR systems change the air in a building by extracting waste condensate air and replacing it with fresh filtered air from the atmosphere without making the building cold.
This is performed by passing the extract air and atmospheric supply air through a heat exchanger within an HRV Heat Recovery unit.
The bottom line is that MVHR will make your home or business a healthy well ventilated environment for your family or employees, without making it cold or needing to open windows. Naturally, this includes unwanted odours.
The benefit of MVHR is very noticeable in the classroom, You will notice a reduction in respiratory issues, colds and flu and improve concentration for pupils as air is more oxygenated.

Stricter regulations on Ventilation in Ireland, refer to technical guidance document TGD Part F for building regulations.
Higher standards for airtightness and building fabric u values.
The average Family produces over 10 litres of water per day, not to mention cooking and clothes drying internally due to our climate.
Increasing incidence of chronic respiratory problems and hay fever.

MVHR system operates by recovering the energy that would normally be lost through open windows, wall vents etc.
The warm stale air that is being extracted from the building is passed through the heat exchanger to warm the fresh filtered air being brought into the house without cross-contamination.
It filters the incoming air through G4 or F7 pollen filters and warms the air by passing through the heat exchanger.
Balanced ventilation systems with filtered supply are ideal for asthmatics or anybody suffering from allergies or respiratory problems.