Residential fire sprinkler technology has greatly advanced and continues to do so, in order to meet consumer's needs. All major residential fire sprinkler manufacturers have developed horizontal sidewall sprinklers for home fire sprinkler system applications.
Sidewall fire sprinklers are ideal to use when it is difficult to access the ceiling or where freezing is a potential concern.
Most of the models available in the market feature a small, thermosensitive, glass bulb, sprinkler, available in various finishes and temperature ratings to meet diverse design requirements.
Optional finishes, in various colors, are available. Some manufacturers may be able to customize the finishes to match the colors of the wall where the sprinkler is installed.
Product manufacturers assert that "sidewall sprinklers can provide cost savings in certain situations where it is not economical to run piping across a room," and "provide the required residential flow rates at reduced pressures, enabling smaller pipe sizes and water supply requirements."
If you are interested in finding out more, an Internet search on "sidewall residential fire sprinklers" will provide additional information.