The costs of maintaining your solar thermal system depend on the type of technology you choose and how often temperatures in your area fall below freezing. Properly maintaining your system will keep it running smoothly.
Passive systems do not require much maintenance. For active systems, discuss the maintenance requirements with your system provider and consult the system owner’s manual. Plumbing and other conventional components require the same maintenance as conventional systems. Glazing may need to be cleaned in dry climates where rainwater does not provide a natural rinse.
Regular maintenance on simple systems can be as infrequent as every 3 to 5 years, preferably by a solar contractor. Systems with electrical components usually require a replacement part or two after 10 years. Simple, regular system checks can also be effective. For example, one easy way to check the system is to carefully feel the hot-water pipes going into the storage tank after the system has been working on a clear, warm day. If the pipes are hot, your system is working properly.