In some multi-apartment buildings supplied by district heating or common central heating, the use of accurate individual heat meters would be technically complicated and costly due to the fact that the hot water used for heating enters and leaves the apartments at several points.
V nekaterih večstanovanjskih stavbah, ki se ogrevajo z daljinskim ogrevanjem ali skupnim centralnim ogrevanjem, bi bila uporaba natančnih individualnih toplotnih števcev tehnično zapletena in draga, ker topla voda, ki se uporablja za ogrevanje, priteka v stanovanja ali iz njih odteka na več mestih.