3 ms·
Generally some form of balanced ventilation (same rate of flow in and flow out) is used. Depending on climate, budget, and comfort considerations, the ventilati
by amluto 5y ago
Generally some form of balanced ventilation (same rate of flow in and flow out) is used. Depending on climate, budget, and comfort considerations, the ventilation can be plain untempered or can be a heat recovery ventilator (HRV) or energy recovery ventilator (ERV). The latter exchanges heat and humidity.
- cesarb 5y agoAnd I've always wondered about something else: on houses which require these systems, what happens when the power goes out? Do you simply crack open a window? What if you were sleeping when the power failed?
- amluto 5y agoPresumably you either get a backup or crack open a window. It will be noticeably stuffy long before it incapacitates you.