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HVAC Exhaust Fan Sizing Calculator for Bathrooms

Bathroom Length (ft) *

Bathroom Width (ft) *

Ceiling Height (ft) *

Toilets (count) *

Showers (count) *

Bathtubs (count) *

Jetted Tubs (count) *

Duct Length (ft) *

90° Elbows (count) *

Moisture Level *

Standard

Heavy Shower Usage

Steam Shower/Jetted Tub

Ventilation Mode *

Intermittent

Continuous

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