Is There an Alternative to a Heat-Recovery Ventilator?

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HRVs are a great idea, but they can get expensive

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[](http://www.greenbuildingadvisor.com/blogs/dept/qa-spotlight/there-alternative-heat-recovery-ventilator)

The tighter the house, the more it needs mechanical ventilation. That's become a rule of thumb for energy-efficient builders, and designers often turn to heat-recovery ventilators to get the job done. These relatively simple (but not necessarily cheap) devices use the temperature of outgoing air to moderate the temperature of incoming air, thus lowering the energy penalty for providing fresh air to the whole house.

URL: http://www.greenbuildingadvisor.com/blogs/dept/qa-spotlight/there-alternative-heat-recovery-ventilator