本帖最后由 移民电工 于 2010-12-21 22:15 编辑 1 D/ k4 Q# k1 |" ^( u
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This is a horizontal furnurs mount on the top of building and intake air form outsid of building, I think you can not fix it by yourself! 8 @3 X, ~* h1 u: s( e( x; V4 j4 ]2 \ B0 L4 c# R) {1 c
These kinds of device need be cleaning and maintaining before winter season.
本帖最后由 移民电工 于 2010-12-21 22:17 编辑 ( x) v6 F V) Q, _" f( E" R; d
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If you do not know these tasks, hire a qualified service specialist.