Exhaust Fan Unit Consumption

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

Exhaust fan unit consumption.

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. Press calculate button to get the exhaust fan power consumption results. Enter the exhaust fan wattage running hours per day and the electricity per unit rate. 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.

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

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 dp q 1. The ideal power consumption for a fan without losses can be expressed as. Typical central ac energy consumption ranges between 2 000 and 5 000 watts per hour.

Power consumption at different air volumes and pressure increases are indicated below. Q air volume flow delivered by the fan m 3 s. Dp total pressure increase in the fan pa n m 2.