Modern mechanical ventilation systems are very effective because they run 24 hours a day, constantly bringing fresh air into ...

The simplest is an exhaust-only system. This often uses a central ducted vent fan to depressurize the house. This draws fresh air in through gaps and leaks in the house exterior. Passive inlet ...

it isn't often used alongside traditional HVAC systems and heat pumps, but it's gaining popularity in certain colder climates ...

this is one of the most typical kinds of ventilation used in modern buildings. Some systems run in a recirculating manner, while others bring in additional fresh air from outside. Either way ...