Croatian Technical Regulation on Energy Economy and Heat Retention in Buildings (Tehnički propis o racionalnoj uporabi energije I toplinskoj zaštiti u zgradama)

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The Regulation sets requirements on the consumption of thermal energy for heating in residential and non-residential buildings, requirements related to airtightness of buildings, the maximum allowed transmission heat loss coefficient of building elements, etc. Also the maximum primary energy demand for a single-family house is established, depending on the climate zone, including energy for heating, cooling, ventilation and sanitary hot water preparation.