The cost of a solar home heating system typically ranges from $3,500 to $7,000 for installation, depending on the type and size. With the potential to cut your energy bills by 50% to 80%, these systems often pay for themselves in just a few years. Plus, federal and state incentives can. . The average homeowner spends $3,706 to install a solar water heater, with costs ranging between $1,780 and $5,722. Higher-end models and components could cost up to $12,000. The type of collector you choose significantly impacts the cost; flat plate collectors cost between $600 and $1,200, while. . The national average cost for installing a solar water heater is between $8,000 and $10,000, with most people paying around $9,000 for a fully-installed, 100-gallon solar active indirect hot water heating system. At the low end of the spectrum, however, you can opt for a smaller tank that holds.
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