Thermal 302 class review
Coupled w/ thermal 301 class, 302 offers the next level in system design/ engineering. This class is worthwhile for the beginning solar thermal installer. I feel a thermal 303 class level is past due, specifically geared towards professional installers, which would cover in depth, Combi systems of space heating and domestic hot water (the most often customer requested option), tank options, system controls, pump sizing for large arrays, formatted system sizing, excess heat control options.
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