Master BLP 103ET - Direct Gas Heaters Direct Gas Heaters – Electronic Master Gas Heaters provide large volumes of instant heat. They are very effective, durable and efficient. Portable gas heaters are best for well-ventilated areas such as construction sites, warehouses or factories. Electronic ignition Dual solenoid valve Ionization electrode continuously checks for flame Optional room thermostat Post ventilation Trolley included Regulator includes safety valve to stop gas flow in case of gas pipe cracks Regulator and gas hose included Motor with thermal protection Overheat thermostat Adjustable heat Strong and durable construction Easy maintenance