Traffic Door Energy Savings Calculator

Energy Calculator

Energy Loss Calculator for Traffic Doors

A strip door effectively blocks at least 65% (conservatively) of air passing through a doorway, resulting in greater energy savings. Use the calculator below to determine the amount of energy you will save by installing a TMI strip door within your facility.

Door Size (in feet)

' Wide (W)

X ' High (H)

Square Feet (Sq Ft)

Average Wind Speed

Miles Per Hour (MPH)

Feet Per Minute (FPM)

Cubic Feet Per Minute

Sq Ft

X FPM

CFPM

Temperature Differential

° F Indoors (ID)

- ° F Outdoors (OD) *

± ° F (TD)

BTU Loss Formulas

Hourly BTU Loss

CFPM

X †

X TD

Hourly BTU Loss (Hr BTU)

Daily BTU Loss

Hr BTU

X Daily Hours Door is Open

Daily BTU Loss (Dy BTU)

Energy to Cost Conversions

Heat Type

Natural Gas

Electricity

#2 Heating Oil

#4 Heating Oil

Daily Cost Per Opening

Amount Used

X $ Cost Per Unit ‡

Daily Cost Per Opening

* Please consult the National Weather Service if you're unsure.
† Based on an air temperature of 70° F and .057 pounds per cubic foot density. As the temperature drops, density increases and the constant will be higher than 1.08. For example, at 15° F, the value should be approximately 1.29.
‡ This is available from your local utility provider.