本帖最后由 爱城一粒沙子 于 2011-8-19 06:40 编辑 ' Y6 F" [# x* V
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电工证不包括煤气,煤气证才可以碰煤气. ' C. w2 f. B1 k0 RYour work need Gas Technician ticket. ( n2 }- m( }; {6 ?! V9 ~If detector was installed outside the Furnance, nothing connect with it, that is OK. 4 b+ V$ N [" I8 p$ L: z/ | HIf at inside and you did have Safety-Tag on it, your gas valve will be shut off by Gas Tech and got fine. ) G* Q* H. R8 s ]$ Q( u+ ~9 m
Good Luck!