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Metal-on-wood Expansion Noise - How to Eliminate?
Are there "standard" techniques/recommendations for eliminating metal-on-wood expansion noise? I recently bought a house with a one-pipe steam heating system. Upon start-up (and only upon start-up), the system produces a series of clicking noises at several locations. After a good deal of careful observation, I have identified the two primary noise sources (both are in the basement):
a. a 6" segment of pipe-and-elbow (connecting to a riser to the 2nd floor) that is resting directly on the wood sill-plate (with all of the weight of the riser bearing down); access is limited by being located in the corner, and, "behind" the steam main;
b. an 8" segment where the steam main crosses a notched 6" x 8" support beam.
I am wondering if something like Liquid Wrench Dry Lubricant (contains Cerflon) would "penetrate" and "lubricate" between the pipe and the wood??
One-pipe steam. NG fired. 2100 sq ft heated space.
Utica Boiler PEG150C (150,000 Btu/hr Input) connected to 491 sq ft of radiation. Operating press 0.5 psi.