Blauberg Medium Heat Recovery Ventilation Kit - Whole House Self Build DIY System - EC-SB-250-CON
Fresh air without the heat loss (or gain) - Renew
Six Steps to Success With Heat-Recovery Ventilation - GreenBuildingAdvisor
How to Build — DIY Air to Air Cross-Flow Heat Exchanger HRV - Lou Dawson, author, ski mountaineer
How An Engineer Designs A DIY Energy Recovery Ventilator | Hackaday
Design optimization of cross-counter flow compact heat exchanger for energy recovery ventilator | International Journal of Air-Conditioning and Refrigeration