Patent ID: 7841381

Claim:
An energy recovery ventilator comprising: a housing comprising a first integral half formed from a molded high density expanded polystyrene having a density of greater than about 2 lb./ft 3 , the polystyrene integrally forming a first half supply inlet, a first half supply inlet chamber, a first half return inlet, a first half return inlet chamber, a return outlet chamber, and a return outlet and a second integral half matingly engaged to the first integral half and formed from a molded high density, expanded polystyrene having a density of greater than about 2 lb./ft 3 , the polystyrene integrally forming a second half supply inlet, a second half supply inlet chamber, a second half return inlet, a second half return inlet chamber, a supply outlet chamber, and a supply outlet, wherein the first half and second half supply inlets form the supply inlet, the first half and second half supply inlet chambers form the supply inlet chamber, the first half and second half return inlets form the return inlet, and the first half and second half return inlet chambers form the return inlet chamber; a heat exchanger comprising an axle having a first end connected to the first integral half and a second end connected to the second integral half, the heat exchanger adapted to rotate about the axle between the supply inlet chamber and the return inlet chamber; a first fan to circulate a first air stream through the supply inlet, supply inlet chamber, supply outlet chamber, and supply outlet; a second fan to circulate a second air stream through the return inlet, return inlet chamber, return outlet chamber, and return outlet; and a fan motor driving the first and second fans.