Water Heater Vs Solar Collector
I've changed the value of the maximum heating capacity of the mixed water heater several times, every time the value of kWh of the water systems changes while the annual water usage stays the same, about 200 m3 per year.
How do I know if the target temperature is met?
Also when I replace the Mixed Water Heater with a "Solar Collector Integral Collector Storage", How do I know if the collector meets the hot water requirements?