However, some MVHR systems do have a mini compressor and reversible heat pump to add home heating or cooling down to the incoming air. https://tvfg3pfp733wspvl4xpdugom2tuvz64wrmamf2h4bcdw46hk5uda.webpkgcache.com/doc/-/s/lhcathome.cern.ch%2Flhcathome%2Fshow_user.php%3Fuserid%3D1027872