Exhaust Fan Unit Consumption

The ideal power consumption for a fan without losses can be expressed as.

Exhaust fan unit consumption.

Enter the exhaust fan wattage running hours per day and the electricity per unit rate. Successes in exhaust fan control at. In general electricity usage is. The electrical use required for a range of exhaust ventilation fans is shown on the following page based on fan cfm ratings.

Q air volume flow delivered by the fan m 3 s. Typical central ac energy consumption ranges between 2 000 and 5 000 watts per hour. Dp total pressure increase in the fan pa n m 2. 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.

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. P i ideal power consumption w. A central air conditioning unit consumes much more electricity than even several ceiling fans combined. P i dp q 1.

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. 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. Use the ventilation calculator to determine the annual energy consumption and cost for heating ventilation air to space temperature.