Ventilation Systems

Here are some of the different types of ventilation systems commonly found:

1. Natural Ventilation:

   • Windows and Vents: Relies on the use of operable windows, trickle vents, or other openings to allow natural airflow.

   • Stack Effect: Utilizes temperature differences to create airflow, with warmer air rising and exiting through higher openings, drawing in cooler air from below.

2. Mechanical Ventilation:

   • Exhaust Fans: Extracts stale air from specific areas like bathrooms, kitchens, or utility rooms, expelling it outside.

   • Supply Fans: Introduces fresh air into the building, typically used in conjunction with exhaust systems to maintain balanced airflow.

3. Heat Recovery Ventilation (HRV):

   • A type of mechanical ventilation system that uses a heat exchanger to transfer heat from outgoing stale air to incoming fresh air, thus reducing energy loss.

4. Mechanical Ventilation with Heat Recovery (MVHR):

   • An advanced form of HRV that not only transfers heat but also recovers and transfers moisture, maintaining a comfortable indoor environment.

5. Positive Input Ventilation (PIV):

   • A system that introduces filtered, tempered air into a property from a central location, usually the hallway or landing, to improve indoor air quality and combat issues like condensation.

6. Demand-Controlled Ventilation (DCV):

   • Adjusts ventilation rates based on the actual demand or occupancy of spaces, optimizing energy efficiency by providing ventilation only when needed.

7. Whole-House Ventilation Systems:

   • Designed to provide comprehensive ventilation throughout the entire property, ensuring consistent airflow and air quality across various rooms and spaces.

8. Spot Ventilation:

   • Targets specific areas or rooms, such as bathrooms or kitchens, using localized exhaust fans to remove pollutants and moisture directly from the source.