The LUNOS e² through wall heat recovery ventilation, allows you to get a very high efficiency heat recovery efficiency, while keeping installation cost to a minimum because the system is ductless. This system has been tested by the German federal agency DIBt, which reported an average efficiency of 90.6%. Another great feature of the e² is the very low fan energy required.
We are receiving a growing number of request for the appropriate values to use in the Passive House Institute’s (PHI) PHPP software. Even though the unit is not certified by PHI, it’s efficiency makes it very suitable for use in deep energy retrofits and new construction low energy buildings and passive houses.
The values to use in PHPP 2012 are:
In cell for ventilation efficiency 90.6% (row G, first cell is 126) per DIBt test.
If following the guidelines that PHI uses for certification, deduct 12%, resulting in a 78.6% data input.
The electric ventilation efficiency which includes the power consumed by the controller and AC/DC converter – in cell H-126 use 0.31 W/m3h
Humidity recovery is between 20-and 30% (the ceramic core absorbs and re-releases humidity). When using the compressor cooling units sheet in PHPP (for air-conditioned projects), use 20% humidity recovery in cell K15.