Geothermal in Park Slope

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    There were a few post back in 2009 regarding the potential for utilization of geothermal heat pumps. Back then little was being done for various reasons. Does anyone out there have any new info on who might be able to permit & install one? The lot is vacant. The projects less than 3000 SF so the system would be rather modest. I’m assuming that the system would carry a cost of double a conventional system.

    11 Replies

    1. Hello all. First time poster to Brownstoner.

      My building in Park Slope has a geothermal heating and cooling system. We are a self managed condo so we all have knowledge of the system. Believe our building is around 25,000 sq ft. We run two wells, one supply and one return.

      If there is a way for OP to PM me please get in touch. Be willing to help point you in the right direction.

    2. sigh…

      “There is a complete lack of expertise in terms of installs and maintaining a geo install in the city. Don’t do it.”

      to that I might add

      There is a complete lack of expertise in terms of installs and maintaining a flying machine. Don’t do it.

      There is a complete lack of expertise in terms of installs and maintaining an elevator. Don’t do it.

      There is a complete lack of expertise in terms of installs and maintaining a horseless carriage. Don’t do it.

      Where would we be if we waited for everyone else to do something first?

      OP, I would be willing to discuss this system with you and simply talk about how one might go about doing it. If it leads somewhere, great! If not, we come away a little wiser and ready to spread what we have learned. If you are still monitoring this thread, contact me at solar@nycsolar.org.

      -SteamMan

    3. Had friends who looked into it and were told that two holes needed to be drilled – over 100 feet apart, which made it impossible to consider, as their lot was only 100 feet.

    4. In the sticks, we do an awful lot of geothermal.

      On the air conditioning side, it’s almost a free ride, on the heating side it’s good but not terrific.

      We use Florida Heat Pump brand equipment.

      In the country the multiple wells (One up, One down) are routine, as we lack municipal utilities, and people have wells dug all the time.

      Technically there are concentric wells, that go up and down in the same assembly, but we have never done one.

      There is a complete lack of expertise in terms of installs and maintaining a geo install in the city. Don’t do it.

    5. I had no idea that they were sucking in ground water in geothermal wells, i always just thought it was some kind of closed loop where the ground was coming into contact with water in pipes and this was sucking the heat off.

    6. There was one on 13th st featured on the par slope house tour a few weeks ago. I didn’t pay much attention to that aspect of it, but you might be able to contact the owner and ask her about the place. She seemed happy to talk about all her renovations.

    7. drilling on a vacant lot will make things easier. 100 feet for a rig that you could get on a vacant lot would be no problem. I think the depth is more like 200 to 250 feet. But I’m not an expert. Permitting for the drilling would be the bigger issue but think NYC is coming around in making it easier to install geothermal systems.

      Wonder about drilling for your own water supply why your at it?? With the right filtration it could cover all your water supply needs. Probably illegal in NYC somehow though. Gotta keep feeding union labor 😉

    8. Geothermal is very challenging in New York. You really need a lot of surface area to make it work or you need to go VERY deep…like over 100′ deep…and with many wells.

      Do yourself a favor and look into a good condensation boiler along with radiant floor heating.