A care home with a special regime at Kotíkovská 15, Pilsen, Czechia. The highest annual saving and the fastest payback of the five buildings the city evaluated in the pilot. The money came from hot water, not from litres on the meter.
A care home with a special regime is an operation where hot water is used all day — washing residents, laundry, cleaning. That is exactly why the measure earned most here of all five buildings in the Pilsen pilot: ≈ 19 500 € (477,365 CZK) a year against a contract value of ≈ 7 470 € (182,970 CZK). The facility states a payback of about three months.
Cold-water use fell by 15.78 % — only the third best figure of the five buildings. The money, though, came from hot water: −26.37 % of the heat used to warm it. A saved litre of hot water is several times dearer than a litre of cold, so in an operation with a high share of hot water it is this component that decides the economics, not the percentage on the meter.
After fitting, staff reported that the stream felt weak in some places. The supplier swapped the components for a stronger variant — and the saving held. We mention this deliberately: in a residential facility the comfort of the staff is a condition, not a detail, and fine-tuning after installation is part of the job.
We calculate the saving potential and show how much of it hot water will bring.