Patent ID: 7213349

Claim:
A heat recovery unit for a clothes dryer, the heat recovery unit comprising: a housing having a support box and a cover attached to the support box by a hinge, where the cover includes an exhaust register and an indicator light cover through which a ‘clean filter now’ light, a ‘low flow’ light, and a ‘high temperature warning’ light are configured to be seen when lit; a controls box positioned in the support box, where the controls box maintains electronic intelligence of the recovery unit, including the ‘clean filter now’ light, the ‘low flow’ light, and the ‘high temperature warning’ light; a heat exchanger removably secure in the support box, where the heat exchanger is a recuperative cross-flow heat exchange; a recovery unit fan positioned in the support box to blow room temperature air up through the heat exchanger; a bypass channel configured to channel clothes dryer air around and outside of the heat exchanger; a filter removably secure in the support box on an inlet side of the heat exchanger configured to filter out lint and dust; a drip pan located in the support box on an exhaust side of the heat exchanger configured to catch condensate; and a catch pan located in the support box and configured to catch condensate from the drip pan.