Hi. There are several types of recuperation. In easy language it means you bring back some heat that the bulb produces and use it for your benefit. Or it can work in opposite way to cool down temperature in summer (outtake off). In most easy way i can describe recuperation unit as the box with a few intakes and outtakes with core which absorbs heat or cold and releases it to circulating air. A block core must let air flow in/out but even absorb the heat/cold (picture below).
recuperation in 2-steps.
Units vary in design and efficiency (50-90+ %). Many are highly costly but some less. Cores are made of ceramics, metal etc.(?), and some units work better in pair. For small room around 100 sq. feet it´s possible to use one unit witch is controlled by the electronic microchip (switch and timer). This way the air flow just changes it´s direction every minute and the core is monolith. Other method is that air goes through in both ways and the core just balances the temperatures but it´s effective although costly cause the core is more complex. It works like this (picture below).
Wastewater must be take up.
) - I would look to see if you can buy a standalone plate type core (they exist, just depends where you are from) and duct in and out of one of them. Easy peasy.
