今天请了MICHAEL AND SON 来检查我的暖气,给了以下的检查结果: GOOGLE PARTS 的价格,BLEEDER VALVE 也就不到十块一个, S1156F 1/2" Union Solder Iron Pressure Regulator 最多也就$50-70 UPON ARRIVAL DISCOVERED DEFECTIVE BLEEDER VALVES AND ALSO INDICATION THAT IT WAS LEAKING, ALSO DISCOVERED SYSTEM DOES NOT HAVE 12 LB REDUCER RECOMMENDED ADDING 12 LB REDUCER, ADVISED CUSTOMER Right now your charges for today are Approve Chose Alternative Future Rec. Declined $89.00 Your priorities as a result of this visit Qty Price SA Price [RECOMMENDED]Automatic Bleeder Vent 1/4 in. 2 $195.00 [RECOMMENDED]Drain, Refill, Bleed - Boiler ALL 1 $360.00 [RECOMMENDED]Pressure Reducing Valve12 LB WATTS 1/2 inch SB1156F sweat fill valve with bronze body with sweat union 1 $495.00 $0.00 [RECOMMENDED]PTU Precision Tune-Up Boiler 1 $69.00 $0.00 安装修理的人工, PARTS 真的要$1100吗? 请有经验的人帮忙出个主意,谢谢。