• The design of an HRV allows an install to avoid bad locations for outdoor air intake.
• The ducted systems circulate fresh air to various rooms efficiently.
• The HRV units minimizes pressurization or depressurization with balanced flow
• These units can use bathroom pickups instead of bath fans to vent out the stale air from the bathrooms.
Cons
• The systems are effective only if the house is airtight.
• It is quite a costly way of ventilating the house. Installation is expensive.
• The system design is complicated and need an installer to set it up.
• The airflow should be measured and balanced for optimum operation of the system.
• There are maintenance hassles. You need to change and wash filters after every couple of months
• In heat recovery industry there are not enough specifications with regards to standards. The products that are being used today may not have manufactures’ support in a few years from now.
• HRVs in their task of recovering heat from outbound airstream increases the pressure drop of the air handling system and the power demand of the fans.
• Is not very effective in milder climates.