Incase cold water supply is interrupted during the day , the heating of water by the solar system may not be affected significantly, although hot water cannot be drawn for use till the water supply is restored.
The model solar water heater will continue to function even on cloudy days due to heat absorption from the infrared rays of sunlight. Efficiency would be affected, however, on rainy days.
Hot water produced by the solar system during the day is stored in an insulated storage tank. The insulation of the tank is such that the water remains hot without significant drop in temperature for around 24 hrs. Thus water heated during the previous day is available for use the next morning.
TERAMAX solar water heating systems do not need significance maintenance. The collector tubes may need annual cleaning to remove accumulated scale and sediment deposits at the bottom. The system is resistant to adverse effects of weather as it is made of stainless steel.
Using the Hot water in the evening or night will result in hot water being unavailable the next morning as the system will not heat water overnight. If you wish to use hot water in the evening too, then choose a larger capacity of solar water heater that meets your needs.