Ventilating Fan Vs Exhaust Fan

Exhaust ventilation fans on the contrary may cause the entry of radon and molds from crawlspaces or dust from attics fumes garages flue gases and so on.

Ventilating fan vs exhaust fan.

Choosing a ridge vent or an attic fan. Signs of bathroom ventilation problems. Ceiling mounted fans are installed in the ceiling and vent into the attic or out. One duct runs from the fan to a ceiling vent.

An exhaust fan is often referred to as a vent fan or ventilation fan so an intake ventilation fan is another specific fan. It can be a serious problem when there aren t dedicated vents and the outdoor air moves into the house through holes and cracks. Depending on someone to open a window to vent excess moisture is a dubious proposition especially in cold weather. Intake fan and exhaust fan or an open door and window are all creating ventilation.

Ceiling mounted wall mounted or inline remote. Direct drive exhaust fans have their motor mounted on the fan shaft so they are more compact and have fewer moving parts than belt driven fans. The exhaust fan is used to get rid of smoke polluted air produced in indoor whereas the fresh air fan is used for indoor ventilation and cooling. The result is a cooler attic space with plenty of air exchange.

Attic fans can also make a lot of noise. The exhaust fan is made up of iron based material whereas the fresh air fan is made up of plastic. They run more quietly and allow greater control over fans speeds than direct drive exhaust fans. In other words putting fresh air into a room and removing bad air is ventilating a room.

When you are deciding between a ridge vent or an attic fan consider the needs of the attic. The duct connected to the ceiling sucks air from below into the fan. If you draw air into your house and exhaust other air you could have cleaner air this way if the intake air is filtered but you will be losing a lot of your conditioned air thus raising your heating cooling costs. Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic.

The window ventilation option is a minimum standard that can t be viewed as effective or reliable. Another duct runs from the fan to a roof vent. A vent fan will always exhaust moisture more effectively. If you have suitable intake venting a ridge vent might be a better choice while larger attics and those with poor ventilation might be better served by an attic fan.

The inline exhaust fan works the same way as the standard exhaust fan but the design is different. Belt driven exhaust fans handle large volumes of air at low static pressures.