The Mark 5 solar water heater by Calpak has a net nominal capacity of 300 liters and is suitable to meet the hot water needs of up to 7 people. It is manufactured according to international standards and carries all the certificates and test reports that confirm its quality. It is an alternative option for hot water production, which is completely environmentally friendly and is considered ideal for areas with high sunshine, such as Greece.
It is dual energy, meaning that it can operate in two ways: solar or electric. This means that inside the water tank there is an electrical resistance, so that on days when there is little sunshine due to cloudy weather you can operate your solar water heater with electricity, and always have hot water.