The EKO 1.5 heat recovery ventilator air exchanger is designed for residential ventilation. According to the manufacturer, the air exchanger’s core recovers 80 percent of a home’s heat or cool air.

The Constructo 1.0 is an addition to the AVS line of air exchangers. Ideal for new residential construction or renovation projects where space is limited, it is configured with factory-built ...

We made our house more airtight and efficient, but the air does not seem fresh or healthy indoors. Will installing a efficient window fresh air ventilator help much or do we need a whole-house model?

When snow covers the landscape outside, you do your best to preserve the heat inside. [Tom] came up with a smart design for a solder fume extractor that includes a heat recovery ventilator. He created ...