Ventilation

Proper indoor ventilation is essential to air quality and helping excessive heat and moisture escape. This is important in residential homes and industries where industrial ventilation fans remove dust and impurities from the air. Some of the many areas where ventilation is extremely important include:

• Attic ventilation
  
• Roof ventilation
  
• Bathroom ventilation
  
• Basement ventilation
  
• Garage ventilation
  
• Industrial ventilation

If you do not have proper bathroom ventilation, you could end up with repugnant odors, mold infestations, stagnant air, and bacterial build up. Each time you run the hot water or take a shower, you create steam. Steam penetrates every surface and crevice, cools down and then turns into water again. If the area has no ventilation and does not dry efficiently, it becomes a prime breeding ground for mildew, mold and other spores. All bathrooms must have direct ventilation to the exterior, which you achieve with either mechanical ventilation or an open window. A window that opens in a bathroom provides a source of fresh air and natural light. Homes without windows require bathroom ventilation fans to eliminate bathroom odors and steam efficiently and effectively. The benefit of ventilation fans is that you vent your bathroom without letting any cold air in during the winter, unlike opening a window. Some homeowners choose to have both exhaust fans and windows that open. Usually a ventilation fan in the bathroom mounts in the ceiling, pulling the moist air out and into an exhaust pipe.

If you go up in your attic on a very hot day, the heat is almost unbearable and can reach over one hundred and fifty degrees. Not only can this damage anything stored in your attic but affects your electric bill because your air conditioner has to work harder. Although most attics have vents at both ends which allow hot air to escape and cool air to flow in, this system is usually not effective without attic ventilation fans. Axial fans are ventilation fans that improve airflow. Properly installed attic ventilation fans expel hot air out of one vent while pulling cool air in and forcing it across the attic. There are ventilation differential thermostats available to control the difference between two temperatures.

Heat recovery ventilation uses a counter flow heat exchanger between outbound and inbound airflow. It improves climate control, provides fresh air and saves energy by reducing the cooling and heating system requirements. Heat recovery ventilators take the heat energy recovered from the exhaust air and transfer this to fresh air entering the home.