HRV/ERV (Heat/Energy Recovery Ventilator)
An HRV or ERV brings continuous fresh outdoor air into a home while capturing most of the heat (HRV) or heat and humidity (ERV) from the stale air being exhausted, so ventilation doesn't mean losing all the energy already paid to heat or cool the house.
Why this matters to you
Modern, well-sealed homes don't leak air the way older houses do, so without mechanical ventilation, indoor air quality, humidity, and odours can build up — an HRV or ERV solves that without the energy penalty of just cracking a window.
Halton Hills note
Newer construction in Halton Hills is built tighter to current energy code, which is great for efficiency but means it doesn't 'breathe' passively the way an older leaky farmhouse does — mechanical ventilation becomes a real requirement, not an upgrade, in a lot of newer local builds.
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