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.
Exhaust fan unit consumption.
P i ideal power consumption w.
Press calculate button to get the exhaust fan power consumption results.
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.
Q air volume flow delivered by the fan m 3 s.
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 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.
Successes in exhaust fan control at.
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.
Dp total pressure increase in the fan pa n m 2.
Power consumption at different air volumes and pressure increases are indicated below.
Typical central ac energy consumption ranges between 2 000 and 5 000 watts per hour.
In general electricity usage is.
Enter the exhaust fan wattage running hours per day and the electricity per unit rate.
P i dp q 1.
The electrical use required for a range of exhaust ventilation fans is shown on the following page based on fan cfm ratings.