Shouldn't be if your building was designed properly, with a proper Heat Recovery Ventilator (HRV) e.g. [0]. The long and short of it, fresh air is slightly heat

Shouldn't be if your building was designed properly, with a proper Heat Recovery Ventilator (HRV) e.g. [0]. The long and short of it, fresh air is slightly heated by stale outgoing moist air. [0] https://www.nrcan.gc.ca/energy-efficiency/products/product-information/cooling-and-ventilating-equipment-for-residential-use/heatenergy-recovery-ventilators/16197 https://www.nrcan.gc.ca/energy-efficiency/products/product-i...