这名官员说，天然气爆炸是由一个“火焰装置”引起，一名受害者的儿子被告知那是一个丙烷加热器。
The official said the gas explosion was caused by a 'flame device' that a victim's son had been told was a propane heater.
开式水浴加热器由带可拆卸式火焰管和气管束的圆柱形容器组成。
The open water bath heater consists of a cylindrical vessel with removable flame tube and gas tube bundle.
便携式空气加热器，燃气控制，重金属结构，耐用风机，在电源切断或火焰熄灭的情况处动切断。
Portable powerful instant gas air heater, enclosed gas controls, heavy-duty steel construction, equipped with high performance fan auto shut off if power is interrupted or flame is extinguished.
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