Savings Calculator

Quickly estimate your approximate operating cost savings using this simple calculator. You only need four data points:

The size of your hood,
The cost of your make-up air
The cost of your electricity (including peak and demand charges)
The average percentage the hood will be used

For a more detailed and thorough savings assessment, please contact Erlab to discuss your specific application.

Calculate Your Savings Potential!

Hood Width:

Make-up Air Cost, $/CFM/Yr:

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Electricity Cost, $/kWh:

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Percent of use, Annually:

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Ducted Hood Annual Operating Cost:

Filtered Fume Hood Annual Operating Cost:

Savings per year, per Hood:

Assumptions:

(48) month filter life (proven!)
No maintenance costs to VAV ducted hoods (not proven!)
Reducing hood flows will reduce Make-up Air proportionally.
1HP exhaust fan per 2" WC pressure.
18" Working Sash Heights