Heated by liquid or air in solar energy collectors. Collect and absorb solar radiation. Transfer solar heat directly to the interior space or to a storage. Heat is then distributed.
Cost-effective in cold climates with good solar resources. Displace more expensive heating fuels, such as electricity, propane, and oil. Some states offer sales tax exemptions, income tax credits or deductions, and property tax exemption. Life span-decades Reduce air pollution. Reduce GHG. Reduce heating bills.
High initial costs. Limited location. Solar cells can only produce direct current. No sun- rely on other energy resource. Some carbon
Collectors and storage unit. Stored in hot water tank. Available hot water when needed. Closed system.
Increases oil life which is not as reliant. Decreases costs of heating. Efficiency