Varmefaktor

Varmefaktor is a term used in Danish (and related Scandinavian languages) to describe a measure related to heat. The exact meaning varies by field, but it generally refers to how effectively heat is produced, transferred, or retained in a system. The concept is used in contexts ranging from building physics to heating technology.

In building physics and energy engineering, varmefaktor is often used to indicate the thermal performance of components or systems, such as heating equipment, heat pumps, or building envelopes. It can be related to or used alongside other efficiency concepts, including the coefficient of performance (COP) for heat pumps or the overall heat-retaining capability of a building. A higher varmefaktor typically signals greater efficiency or better heat retention, depending on the specific definition being applied.

Because the term is not universally standardized, the exact definition, formula, and units of varmefaktor can vary by country, standard, or manufacturer. When comparing products or systems, it is important to verify the reference conditions, testing methods, and the precise meaning of the varmefaktor used in the specification.

See also: COP, heat transfer coefficient, U-value, energy efficiency, Scandinavian energy labeling.