This is a rough manual for help with calculation.
Consider that the lower specified values apply for hot water consumption with temperature 40 °C.
Another calculation method is to consider total daily consumption of water in the household. It depends on the size of household and common consumption complies with the data below:
Most DZ Dražice water heaters are made from enamel steel. Water quality is not an issue because most of our products use dry ceramic unit in the well, which provides minimum growth of calcic sediments during heating. This unique solution has 2.5 higher transfer surface comparing to submersible unit.
Our water heaters are made in such way to optimally function with all types of heating systems.
However, if you require selecting water heater for e.g. solar collectors or a heating pump with low energy consumption, you need a correctly selected model from our product range. The below pages provide a list of water heaters exactly matching your requirements.