The Solaria SCOSYAW15240w, Black, 1500w/ 240v, commercial grade electric heater lamp is an ideal choice for heating outdoor commercial and residential areas such as gazebos, decks, awnings, and open-air terraces in restraunts, clubs, pubs and boat decks. Conventional heating systems produce heat energy in the long and medium waveband. Consequently, this type of heating system offers high transmission losses. Heat rushes out when cold air rushes in when ever doors are opened in a building. The Innovative Quartz Heating shortwave heating Technology provides radiant heat energy which instantly warms people and solid objects within the beam of heat. Why choose solaira quartz heating over natural gas or propane heaters? Low operating cost of approximately $0.15 / hr (based on electricity cost of $0.08 / KW hour). Produces instant heat with no initial warm up time. Provides reliable heat source that won’t blow away or fail to start. Silent and odorless with no products of combustion. Wall mounting maximizes floor space with no storage of bulky propane gas bottles.