1 Solar-powered home water heaters cost $1,000-$3,500 (including installation) but have extremely low monthly operating costs and can be used in any climate, according to the US Department of Energy.2  The cost for a solar heating system can vary widely. Prices vary based on building and system configuration, the type of equipment selected and other factors. 2  Generally it costs less to install a system in a new home rather than remodeling an existing one, although it can be practical to install a solar system while replacing the roof.
herb, spice, seasoning - Herbs are, technically, plants with aerial parts used for seasoning foods, and a spice (also called seasoning) is any substance used for seasoning foods; many herbs are used as spices, but not all.
Rosemary is a member of the mint family Lamiaceae along with many other herbs, such as oregano, thyme, basil, and lavender. The name rosemary derives from the Latin ros meaning dew and marinus meaning sea - sea dew.. The herb has been hailed since ancient times for its medicinal properties.