Kogusoojus

Kogusoojus is a term that has appeared in Estonian-language discussions as a neologism describing the perceived warmth of an environment. The word is constructed from Estonian elements relating to quantity and warmth, and is used conceptually rather than as an established technical term. There is no single, widely accepted definition, and interpretations vary across contexts.

Definition and scope

Kogusoojus refers to the qualitative experience of warmth in a space, encompassing both physical factors such as air temperature, radiant heat, humidity, and air movement, and psychological or contextual factors such as aesthetics, lighting, scent, and occupants’ expectations. In practical discussions, the concept is often linked to but distinct from formal notions of thermal comfort, serving as a broader or more subjective measure of how cozy or inviting a space feels.

Usage and applications

In energy and built-environment debates, kogusoojus is sometimes invoked to describe the relationship between heating inputs and occupants’ perceived warmth. It may be used to advocate for design approaches that enhance perceived warmth through passive strategies, material choices, and human-centered design, in addition to mechanical heating.

Criticism and research

As a relatively new and informal term, kogusoojus lacks standardized metrics or measurement protocols. Some scholars caution against conflating it with established thermal comfort scales, while others see value in exploring its qualitative aspects as part of holistic building design and climate-adaptive strategies.

See also

Thermal comfort, Thermal sensation, Energy efficiency, Climate adaptation.