Solar in the Kosciusko

Solar hot water in the high country, Gets broken every year when the temperatures go below zero. The solar collector freezes and splits the pipes and you have another leak, How do you fix such a problem? Well you have to use a heat exchanger and run a liquid that doesn't freeze at Zero degrees and the problem is solved. Heat exchangers are just two pipes inside one and other to separate two liquids one is the heating liquid and the other is the heated liquid. Simple it is. The system is modified by placing a pipe inside the tank at the top of the collector the more surface area the better the exchange of heat. Heat exchangers are used in boats so that fresh water is run in the engine when it is in salt water and corrosion is reduced to a minimum.