article_snippet.sent: the temperature can also be modified using a monitoring system similar to central heating.
article_snippet.sent: There are plenty of structural problems involved -- a lot of important questions were raised such as what happens if it's so cold outside that the water freezes or what happens when one panel breaks.
article_snippet.sent: "Our now mix the water with natural solvents, that do not cause pollution but lower the freezing temperature to an acceptable level.
article_snippet.sent: This practically means, that even if the reheating technology fails, the water cannot freeze."
article_snippet.sent: In case of cold climates, like in Hungary, Our also add some external insulation to the structure, to protect some external insulation to the structure from freezing.