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Ground Source Heat Pumps 'Require No Maintenance?'
In the northeast heat pumps are getting a lot of PR; in our area in Westchester, NY ground source heat pumps ––currently for forced hot air/AC systems––are being promoted with incentives. I am always skeptical of claims of no maintenance requirements whether for mod-cons or GSHPs. There's the obvious annual filter change, and making sure sheets of ice don't fall or 'grow' on the outside compressor in winter, but what kind maintenance should consumers be aware of before they put their money down on these. (Of course there's other issues like adequate heat and hot water coverage, what % of the time the electric element will have to run, etc.)