What is an Energy Recovery Ventilator (ERV)?
An Energy Recovery Ventilator (ERV) is a device that does a similar job to an HRV, but handles both the heat from air temperature and moisture in the air (known as sensible and latent heat.) Because it exchanges both, they are usually more efficient and do not have condensation problems that can occur in a HRV. There are two types of ERVs, linear exchangers similar to HRVs and rotary wheel type systems where media moves between the air moving in and moving out to transfer the heat and moisture.
