Box for air warming and filtering consists of full foam and contains air filter and/or air heat register to supply fresh air for ventilation plants

摘要

The box (1) and lid (2) are entirely of foam. The box contains an integrated air filter and/or an air heat register. The register supplies heat from electricity, geothermal sources and/or solar energy to provide hot water, alone or in any favored combination, so that fresh air is taken into it for preparation for the ventilation plant.