I am going to check out broken furnace blower. But I got stuck when tried to shut off gas valve on the pipe to furnace. It is so tight :wall: I stopped and don't want to break pipe. Do i need bigger wrench for this work? thanks for tips.[ATTACH]83840[/ATTACH]

New unit: ICP / Tempstar N8MXL 1102120A with AC Condensor H4A436GKA Furnace is so much more powerful than my old that it is too loud: the furnace unit itself, the vents and particularly up through the returns. I cover the return in my bedroom at night so as to not be awakened by the sound! My installer looked at it and the wiring diagram, and said he did not see any means of reducing the motor speed. From my notes: N8MXL1102120A (ArcoAire; Tempstar; Airquest): 80% x 110k BTU = 89k BTUH, 1 stage, X(-13) ECM Blower. Can anyone else please please help in finding a solution? Most grateful, Doug