The Blue Belle gas heater from Admiral impresses with its strong heating performance and low consumption. It is equipped with an open flame and an on/off saving thermostat. Combustion takes place via a robust burner strip using a visible, blue flame for constant room heating. When the desired temperature is reached, the main burner switches off and switches on again as soon as the temperature drops. The built-in oxygen deficiency safety device monitors the CO2 content in the environment and switches the oven off automatically if the intended standard limit of 1.5% is exceeded. In addition, a thermocouple prevents unwanted leakage of unsecured gas. Furthermore, the gas valve with electric valve and a guard flame ensure even more safety. The heater produces neither CO nor unburned gas and is therefore eco-friendly. The heat is created by natural air circulation.