3 ms·
Most home HVAC systems don’t bring in fresh air, right? Just recirculate air in the house.
by surfmike 4y ago
Most home HVAC systems don’t bring in fresh air, right? Just recirculate air in the house.
- kubanczyk 4y agoV in HVAC is for "ventilation" and although home AC unit might not provide it itself, I'd be surprised if there really wasn't any. Unlike AC, V is mandated by law in many jurisdictions.
- kqr 4y agoThe ones I know suck air out of the building (well, really, create a mild low pressure), and rely on fresh air getting in elsewhere (for example through dedicated intakes around windows in apartments.)
- gruez 4y agoNewer homes are supposed to have heat recovery ventilators, which do bring in fresh air even if all windows are closed.