In my continuing research of cooling options I came across these as a heating/cooling option add on for MHRV.  Ive found a couple of options:   Systemair: Link  Zehnder Comfo: Example   and a unit from BPC which they seem to say is an Airflow product but I can find no reference to it anywhere and the picture shows a Helios badge: Link   Does anyone have any views?  If I decide quickly it wouldn't be impossible for me to integrate a small brine loop in