CodeKey Whole House Mechanical Ventilation Specifier

Code compliant solutions for one and two family dwellings and townhouses up to three stories

To better serve you in determining your customers’ whole house mechanical ventilation (otherwise known as continuous ventilation) needs, we have developed this on-line tool. With our CodeKey Specifier you can select and specify products in accordance with the latest codes and regulations. Use this tool to make your specification job easier.


Range Hood Make-Up Air Damper Specifier

Code compliant Make-Up air solutions for domestic range hoods in family dwelling units

To help you determine your Make-Up air needs, we have developed this on-line tool. With our Make-Up Air Specifier you can specify equipment designed to provide for the home’s Make-Up air needs and designed to be compliant with the latest codes and regulations. Use this tool to make your specification job easier.


Attic Ventilation

Attic Ventilation Calculator

Determine attic size for best ventilation solutions

Effective attic ventilation requires air to exit at or near the peak of the roof and replacement air to be drawn in under the eaves of the house, via soffit venting. The Home Ventilating Institute (HVI) recommends that powered attic ventilators provide at least 10 air changes per hour to equalize attic temperature.


Allowable Duct Length Calculator

Calculates maximum allowable duct length

This easy-to-use, flexible tool calculates maximum allowable duct length to hit a given delivered cfm airflow level based on basic inputs: CFM required, fan model, duct diameter, duct type (flex or rigid) and number of elbows. One of its many convenient applications is the ability to demonstrate on-the-spot 2015 IRC code compliance without field testing or the use of complex tables.


Broan Designer's Center

2D & 3D Downloads

Planning a new kitchen? With access to our 20-20 .DWG and .DXF files designers and architects will be able to place a number of our kitchen ventilation products into their concepts.