We have no idea whether [Nick Goodey] is a trained engineer or not. But given the detailed design of this DIY energy recovery ventilator for his home HVAC system, we’re going to go out on a limb and ...

Q I live in a modern well-insulated bungalow that has a great deal of condensation, which I keep under control with a dehumidifier. Would a “heat recovery ventilation system” be a better alternative?

Clean air is essential to good health — not just outdoor air, but the air we breathe in our homes. An energy-recovery ventilator can improve indoor air quality in tightly sealed houses. Installing an ...