Abstract:
Ventilating is the process of changing or replacing air in any space to provide high indoor air quality. This is because the fresh air is vital to our quality of life and well being. So due to lack of proper ventilation inside residential garages, workshop, small hangar and living places can produce many hazards to the public's health and safety. There are four methods of ventilating air, which is natural ventilation, mechanical ventilation, hybrid ventilation and infiltration.
In cold climate country and other place that have very low temperature, they need a heating system that produce warn air for their comfort. Now days there are many type of heating system that that can produce warm air during low temperature.
