本帖最后由 爱城一粒沙子 于 2011-8-19 06:40 编辑 + u1 D. i5 N* M2 b1 e % J6 s* l6 R* u. n6 x% n Z9 K8 L; ^- m电工证不包括煤气,煤气证才可以碰煤气. ) y! m+ {* @ h; G+ G- U7 @Your work need Gas Technician ticket.; d& s' U" _# b: F$ V
If detector was installed outside the Furnance, nothing connect with it, that is OK. r- H( y4 _1 d- I4 [* n) _) K( Q% _
If at inside and you did have Safety-Tag on it, your gas valve will be shut off by Gas Tech and got fine. 3 y! Q) b2 Y# i7 p1 {1 k2 D9 A! W* \0 _# [
Good Luck!