Determine CFM Requirement

Calculating the BTU’s of Gas Ranges with Gas Ovens

1. Add the BTU’s of each of the surface burners, grills and / or griddles.

2. Add the BTU’s of oven burner(s) with the highest BTU rating. If only one burner can be used at a time,

use the highest number only. If two ovens operate simultaneously, total the highest rated burner in each

oven.

3. Add the total BTU’s of the surface burners to the BTU’s of the oven burner(s).

Calculating the BTU’s of Gas Ranges with Electric Ovens (Dual Fuel Ranges)

1. Add the BTU’s of the surface burners, grills or griddles.

2. Calculate the “BTU Equivalent” of the oven element with the highest wattage rating. Consider the three

possible elements (bake element, broil or convection). To calculate the BTU Equivalent, multiply the

element with the highest wattage by 3.5 then add this number to the surface burner total BTU’s.

Typically, only one of these three oven elements would be operating at a given time.

3. Add the total BTU’s of the surface burners to the BTU Equivalent of the oven burner(s)

It is increasingly popular for homeowners to have modular “cooking centers”. These areas frequently combine

electric cooking products with gas cooking products. Combined cooking product configurations might include a

gas range or cooktop, a separate electric grill and / or steamer and a gas wok. In these instances, the total BTUs

of each of the cooking devices (gas BTUs plus equivalent BTUs from the electric elements) needs to be

calculated in order to determine the total BTU’s and CFM requirements.

*For more information, see the Installation Instructions included with each individual range hood. All

range hoods should be installed by a qualified installer consistent with local building codes.

For more information, please contact your Trade-Wind

Representative

800 West Grant Street, Phoenix, AZ 85007

1-800-955-5737

602-900-8500

t-wusa.com

Revised 06/08/18

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