Mechanical Ventilation Heat Recovery (MVHR)
What is MVHR Mechanical Ventilation with Heat Recovery?
- 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.
![](https://airwaveheatrecovery.ie/wp-content/uploads/2024/07/Heat-Recovery-Ventilation.jpg)
Current Problems
- 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.
The Solution: Mechanical Ventilation with Heat Recovery system (MVHR).
- 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.