gas heater indoor

gas heater indoor, 1970s,A gas heater is a space heater used to heat a room or outdoor area by burning natural gas, liquefied petroleum gas, propane or butane.Indoor household gas heaters can be broadly categorized in one of two ways: flued or non-flued, or vented and unvented,apg gas heater would always be permanently installed. The flue, if properly installed with correct overall height, should extract most heater emissions. A correctly operating flued gas heater is usually safe