System Sizing When installing a heat recovery ventilation system (HRV) it is very important that the system matches the application. Consideration should be given to the electrical energy required to run the Heat Recovery Ventilation system along with the initial cost of the system. This requirement is very significant over the life of the H.R.V. unit. Under-sized units will result in the following negative effects:
- Loss of electrical efficiency.
- A shorter life-span of the fans.
- More frequent filter changes