All wall recuperators available on the market operate in an alternating cycle. First, the outgoing air stream heats the heat exchanger for a while, and then automatically switches to the heat recovery cycle through the air flow. However, PRANA® recuperators are equipped with two fans - one that is responsible for the supply air stream, the other responsible for the outgoing air stream. This solution enables continuous and even heat recovery at a constant level of efficiency.
Another novelty of PRANA® heat recovery units is that they are equipped with copper sheet exchangers of better quality (they do not rust and do not spoil). This material is valued because of its antiseptic properties and the ability to significantly reduce bacteria and viruses present on its surface. It prevents bacteria from accumulating in the pipes, disinfects, refreshes the air and, finally, avoids the use of coarse filters. Thanks to the high thermal conductivity of copper, the efficiency of the PRANA® heat recovery system reaches 91%.