瓦斯加热，使用中因没瓦斯或其化因素未点燃时，自动警示与关闭瓦斯、安全防护装置。
Gas heating: Without gas or not burned for other reasons in use, it will alarm and turn off the gas automatically. Safety protection device.
瓦斯加热，使用中因没瓦斯或其化因素未点燃时，自动警示与关闭瓦斯、安全防护装置。
Gas heating: Without gas or not burned for other reasons in use, it will alarm and turn off the gas automatically. Safety protection device.
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