25 Jun '11, 12am

Green Building Q&A: heat pump noise?

Recently a client asked me to help him solve a problem with noise in his house which he attributes to a deep-well heat pump his neighbor has.He says the noise is a muted pulsing sound that seems to occur at night when the pump is running.There is no noticeable sound outside the house,as it would be if traveling through the air,and I wonder if it is possible that the sound is being transmitted through the ground.There is a good chance there is solid granite that lies under both houses,which are about 150 feet apart.

Full article: http://www.greenbuildingadvisor.com/community/forum/mecha...

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gas2.org 25 Jun '11, 4pm

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greencarreports.com 23 Jun '11, 9pm

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greenkampong.com 21 Jun '11, 4am

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