Exhaust Fan Unit Consumption

Power consumption at different air volumes and pressure increases are indicated below.

Exhaust fan unit consumption.

P i ideal power consumption w. 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. The electrical use required for a range of exhaust ventilation fans is shown on the following page based on fan cfm ratings. 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.

The ideal power consumption for a fan without losses can be expressed as. Successes in exhaust fan control at. In general electricity usage is. P i dp q 1.

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. Dp total pressure increase in the fan pa n m 2. A central air conditioning unit consumes much more electricity than even several ceiling fans combined. 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.

Press calculate button to get the exhaust fan power consumption results. Typical central ac energy consumption ranges between 2 000 and 5 000 watts per hour. Q air volume flow delivered by the fan m 3 s.