List of featured suppliers of VENTILATION SYSTEMS Heat Recovery Whole House SAP Appendix Q Listed on Building Products Index
A ventilation system refers to a mechanism that allows for the circulation of fresh air throughout a building or structure. Heat recovery whole house involves the recovery of energy used in heating or cooling a building through the use of a mechanical heat exchanger. SAP Appendix Q listed refers to energy-efficient measures that are recommended for inclusion in a building for it to meet minimum energy performance standards.