Conditioned Space – Defined

building-envelope3An enclosed space within a building where there is intentional control of the space thermal conditions within defined limits using natural, electrical, or mechanical means. Spaces that do not have heating or cooling systems but rely on natural or mechanical flow of thermal energy from adjacent spaces to maintain thermal conditions within defined limits are considered conditioned spaces. Examples include restrooms that use exhaust fans to draw in conditioned air to maintain thermal conditions and atria that rely on natural convection flow to maintain thermal conditions. See definition for Unconditioned Space.

Conditioned spaces can be further classified by the following definitions:

Cooled Space: An enclosed space within a building that is intentionally cooled to maintain the thermal conditions below the maximum criteria.

Heated Space: An enclosed space within a building that is inten tionally heated to maintain the thermal conditions above the minimum criteria (Standard Definitions of Building Geometry for Energy Evaluation – M. Deru and P. Torcellini source: http://www.nrel.gov/docs/fy06osti/38600.pdf)

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