Vent-a-Hood B100 Single User Manual

Page 2L110 1213A
Ducting Do’s and Don’ts
YES
NO
Smooth Duct
Smooth Gradual Turn
Proper Combining
of Two Ducts
Flexible Duct
Sharp Angled Turns
Improper Combining
of Two Ducts
General Requirements
• Observe local codes regarding special duct requirements and placement of duct against combustibles.
• UsingVent-A-Hoodtransitions(backpage)willensureproperefciency.
• UsingVent-A-Hoodroofjacksorwalllouvers(backpage)willensureproperefciency.
• Where possible, seal joints with duct tape.
• The hood must be ducted to the outdoors without restrictions.
Blower Requirements
• The single blower unit (B100) requires 6” round duct or equivalent (28 square inches), and the dual
blower unit (B200) requires 8” round duct or equivalent (50 square inches).
Blower Combined Duct Dize Sq. Inch Area Vent-A-Hood Transition
Single (B100) 6" round or equivalent 28 sq. in. N/A
Dual (B200) 8" round or equivalent 50 sq. in. N/A
Single and Dual (B100 & B200) 10" round or equivalent 79 sq. in. VP562 (Optional)
Two Duals (Two B200s) 12" round or equivalent 113 sq. in. VP563 (Optional)
Ducting Requirements
• NEVER reduce the duct size.
• Whencombiningductstogether,thesquareinchareamustreectthetotalsquareinchareaofthe
ducts being combined.
• Donotuseexibleorcorrugatedduct.Thistypeofductwillrestrictairowandreduceperformance.
• Onlyusesmooth,galvanized,metalduct.
• Make the duct run as short and as straight as possible with as few turns as possible.
• Avoid sharp-angled turns. Instead, use smooth, gradual turns such as adjustable elbows or 45 degree
angled turns.
• Forductrunsover20feet,increasetheductdiameterbyoneinchforeverytenfeetofduct.
• A 90 degree elbow is equal to 5 feet of duct.
Termination Requirements
• Airowmustnotberestrictedattheendoftheductrun.
• A wall louver or roof jack is required for each duct run.
• Everywalllouverorroofjackmustincludeagravitydampertopreventbackdrafts.
• Do not use screen wire or spring-loaded doors on wall louvers or roof jacks.
• Donotterminateventingintoanatticorchimney.

Vent-a-Hood B100 Single Specifications

General

Brand	Vent-a-Hood
Model	B100 Single
Category	Ventilation Hood
Language	English