Exhaust Fan Unit Consumption

The electrical use required for a range of exhaust ventilation fans is shown on the following page based on fan cfm ratings.

Exhaust fan unit consumption.

Basic fan only ventilation units can use as little as about 6 watts for highly efficient models while many standard units often use around 60 watts or more. A central air conditioning unit consumes much more electricity than even several ceiling fans combined. Power consumption at different air volumes and pressure increases are indicated below. By default we have added 70 watts high speed brijlax pvc glass exhaust fan for kitchen bathroom blade size 150 mm 6 inches white amazon and it works 12 hours per day.

Q air volume flow delivered by the fan m 3 s. Successes in exhaust fan control at. In general electricity usage is. Press calculate button to get the exhaust fan power consumption results.

Use the ventilation calculator to determine the annual energy consumption and cost for heating ventilation air to space temperature. P i ideal power consumption w. Enter the exhaust fan wattage running hours per day and the electricity per unit rate. A small exhaust fan left running at night can be easily overlooked but you may be surprised by the energy cost of leaving it on.

Typical central ac energy consumption ranges between 2 000 and 5 000 watts per hour. A smaller window unit consumes less electricity about 1 200 watts for a unit that requires 12 000 british thermal units but it won t cool your entire. Turning off exhaust fans when they are not needed will save the cost of electricity needed to power the fan and reduce hvac cost for condi tioned make up air.