本帖最后由 爱城一粒沙子 于 2011-8-19 06:40 编辑 - H" A" w- ]; C! k 8 s, v8 K# T) ^) \( p8 Y" ]电工证不包括煤气,煤气证才可以碰煤气. - O4 B$ v) q8 ~/ a5 O" `7 a( ~5 TYour work need Gas Technician ticket.6 t3 M$ y: Y4 g3 m( X5 B
If detector was installed outside the Furnance, nothing connect with it, that is OK.7 o) D4 [4 v c
If at inside and you did have Safety-Tag on it, your gas valve will be shut off by Gas Tech and got fine. . r v9 r8 k4 j5 m3 y3 _3 v( M
Good Luck!