The article discusses the impact of low-frequency noise caused by heat pump systems on adjacent homes, particularly focusing on issues faced by a neighbor experiencing disturbing vibrations. It suggests potential solutions such as placing vibration-dampening pads under the heat pump units, changing the fan blades to more aerodynamic designs, or constructing a roof over the units while incorporating sound-deadening insulation. The advice outlines practical measures to mitigate unwanted noise while considering the technical limitations and possible costs involved.
Since many low-frequency noises are associated with vibrations, the easiest first pass would be to ask your neighbors to place vibration-dampening pads under the unit. That could help somewhat.
Another option is to have a roof built over the units. We have done that before in certain instances, given that these heat pumps need to be kept clear of snow in the winter to operate properly.
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