Continental Fan Tranquil Exhaust Fan with Light, 110 CFM

Continental Fan Tranquil Bathroom Fan with Light. TF Tranquil Bathroom Fans with light are Energy Star qualified and HVI certified. These traditional in-ceiling fans are engineered to provide superior ventilaition and efficient performance. The whisper-quiet operation of a TF fan is under 1 sone. The built-in damper prevents a backdraft, keeping tempered air in a home when the fan is not operating.

Features:
Superior ventilation and efficient performance
Whisper-quiet, under 1 sone
Galvanized steel housing
Clean, simple grille design
Easy installation
Double hanger mounting brackets adjust up to 24″ span
Built-in backdraft damper
Efficient AC motor
Single phase; 120V, 60 Hz operation
Automatic reset thermal overload protection
Max 26W GU24 fluorescent light
Available to fit duct sizes 4″ and 6″
TF80L is HVI certified and Energy Star qualified
TF110L is HVI certified and Energy Star qualified only for 6″ duct

Requirements:
HVI recommends ventilation rates based on 8 air changes per hour. For most bathrooms this works out to 1 cfm per square foot of area, with a minimum of 50 cfm.
A bathroom less than 100 square feet:
Calculate 1 cfm per square foot of floor area. A minimum of 50 cfm is the required ventilation rate.
A bathroom larger than 100 square feet:
To calculate the proper ventilation rate, add the cfm requirement for each fixture; toilet 50 cfm,shower 50 cfm, bathtub 50 cfm, jetted tub 100 cfm. Note: For proper sizing,the static pressure (SP) needs to be calculated.