17) kasulik üldpõrandapind – hoone köetav pind, mis on hoone kõigi nende ruumide suletud netopindade summa, mille ruumiõhu kvaliteedi tagamiseks, sealhulgas temperatuuri hoidmiseks, tõstmiseks või langetamiseks, kasutatakse energiat;
defineeritakse selle seaduse ulatuses
17) ‘total useful floor area’ means the building’s heated area that is calculated as a total sum of the net areas of all of the building’s rooms that use energy to control the quality of their indoor air, including to maintain, increase or reduce indoor temperature;
