What is an ERV/HRV?

HRV (Heat Recovery Ventilator)

An HRV is used to provide fresh outdoor air into a facility, while helping to preserve the indoor temperature by transferring the energy (heat) between the incoming fresh air and the outgoing stale indoor air. This is an extremely energy efficient approach. Each HRV’s heat exchange has a different energy efficiency value based on its heat transfer efficiency ratio. 

During the winter, the outgoing warm indoor air preheats the incoming cold outside air. While in the summer, the outgoing cold indoor air precools the warm incoming outside air.

ERV (Energy Recovery Ventilator)

An ERV adds one additional capability to an HRV: moisture transfer. Like an HRV, the ERV will transfer the energy (heat) between the incoming fresh air and the outgoing stale indoor air. But, it also exchanges the moisture levels to keep the incoming air from over-humidifying or over-dehumidifying the room.

During the winter, the outgoing higher saturated (humidity) indoor air increases the saturation (humidity level) of the incoming cold outside air to prevent the dry winter air from drying out the facility. While in the summer, the outgoing dry indoor air removes the higher saturation (humidity level) of the incoming warm sticky outside air to prevent over humidifying the facility.

How does this work with Pelican?

Your Pelican solution is working hard to efficiently maintain indoor temperatures, humidity levels, and ventilation rates. HRVs and ERVs are mechanical systems that help reduce the energy load and improve the ability of your HVAC equipment to maintain indoor comfort. 

Pelican works at its best when your mechanical system is designed properly for your environment.