In Depth: Chest. A womanâs chest â like the rest of her body â is covered with skin that has two layers. 1  The epidermis is the outermost layer that provides a protective, waterproof seal over the body. 2  The dermis is the under layer that contains sweat glands, hair follicles, blood vessels, and more.
Natural gas is furnished by privately owned Puget Sound Energy, which began its existence in 1886, generating electric power as the Seattle Electric Light Company.
If you have natural gas, there are gas-powered air conditioning units that use a no-compressor absorption process. These also heat your house in the winter. Another super-efficient gas central air conditioning and heating unit uses a compressor. With an equivalent SEER of 27, it can cut cooling costs by 75%.