Buzz in our stove when next door neighbor runs hot tub
Gas Stove: Whirlpool W10200947C--installed in April 2013 Stove electrical connection is 110 volts. (Neighborhood is single family homes.)
First noticed buzz when neighbor installed hot tub. Buzz occurs only when hot tub is running. Stove plugged into other circuits in house, still buzzes.
Stove plugged into neighbor's house and does not buzz.
Tried simple surge (for line filter) and appeared to work at first, but then buzz started again.
Tried two sophisticated surges, still buzzed.
Tried an UPS unit--still buzzes
We thought it might be line noise, but since filtering does not seem to work we are not sure about that. Some friends suggested it could be a ground loop. We do not know much about electrical things, so would appreciate any suggestions. The buzz is pretty annoying.