During my time as a Congressional Fellow I staffed a hearing on Hot Dry Rock geothermal energy. Has great promise but not yet commercial. https://www1.eere.energy.gov/ba/pba/pdfs/geo_hotdry_rock.pdf
On Thu, Jan 6, 2022 at 12:19 PM Curt Raymond via Mercedes < mercedes@okiebenz.com> wrote: > I expect it depends on how high the ground water is, I've seen some that > have 400' drops. I've also seen them talk about horizontal loops 10 feet > down but as our frost line is 6 feet I'd imagine we'd want horizontal loops > to be deeper than that. > -Curt > > On Thursday, January 6, 2022, 12:05:32 PM EST, dan penoff.com via > Mercedes <mercedes@okiebenz.com> wrote: > > I think our loops were supposed to go down 60 feet or so if I recall > correctly. > > -D > > On Jan 6, 2022, at 9:21 AM, Curt Raymond <curtlud...@yahoo.com> wrote: > > > I don't know how far down we'll have to go for rock, the top couple feet > are soft soil anyway... > > -Curt > > On Thursday, January 6, 2022, 11:07:14 AM EST, dan penoff.com < > d...@penoff.com> wrote: > > > Based on the geology of where you live I’m guessing a lot of the cost is > in the boreholes for the loops. Drilling through rock versus clay and soil > (Indiana) is a big difference. > > -D > > On Jan 6, 2022, at 8:23 AM, Curt Raymond <curtlud...@yahoo.com> wrote: > > > Whoa, I've been considering it for here and the estimate is $35k although > we have a very small house (900sqft) so it'll probably be cheaper. Plus I > want to hook it into our existing hydronic setup. I have no interest in hot > air... > > We spend about $1600/yr on oil which isn't getting any cheaper. > > -Curt > > On Thursday, January 6, 2022, 10:17:34 AM EST, dan penoff.com via > Mercedes <mercedes@okiebenz.com> wrote: > > > We seriously considered geothermal for the massif we owned in Indiana. > This would have been 2010, but for a 4,000 SF two story house the total > would have been around $14,000, less Federal and State incentives bringing > our out the door cost of around $10,000-$11,000 as I recall. Average > monthly bill regardless of season was estimated at under $100. > > Also, in Indiana the state gave you a cut on your property taxes for > installing geothermal. It wasn’t a substantial amount, but hey, like Geddy > Lee says, “10 bucks is 10 bucks.” > > -D > > > On Jan 6, 2022, at 6:41 AM, Andrew Strasfogel via Mercedes < > mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> wrote: > > > > What was the install cost for your geothermal system? This would work > > great in the mid-Atlantic but has never really caught on. How much > acreage > > did you need? > > > >> On Thu, Jan 6, 2022 at 12:02 AM OK Don via Mercedes < > mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> > >> wrote: > >> > >> Dan, I've lived with heat pumps since 1979 - the earlier ones had > resistive > >> backup heat that did come on below freezing. This new one doesn't have > any > >> resistive elements. In our main house, we have geothermal, and > >> occasionally the resistive elements would fire up, but I've pulled the > >> cut-off on them so we just have the geothermal now and it's been just > fine, > >> even below 0F last winter. > >> No, they don't blow hot air, and the warm air does blow more than a hot > air > >> system would, but it's not a problem, at least for us. YMMV. > >> The new mini-split is in the 700 sq ft "guest house" where my wife is > now > >> growing veggies all year round -and it replaced a couple of window units > >> (one was a heat pump) and some electric space heaters. The electric use > is > >> about a third of what it was last year. When we installed the > geothermal in > >> the big house, our total energy cost was cut in half. > >> We're very happy with both of them. > >> > >> On Wed, Jan 5, 2022 at 8:59 PM dan penoff.com via Mercedes < > >> mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> wrote: > >> > >>> Don, is the outlet air temperature decent? That's one thing that a lot > of > >>> people don't get used to if they've experienced gas or electric forced > >> air > >>> - the outlet temps are generally quite a bit higher than what a heat > pump > >>> puts out. > >>> > >>> I'm curious about this as I don't want to put something in the casita > >> that > >>> won't perform. > >>> > >>> Thanks! > >>> > >>> -D > >>> ________________________________ > >>> From: Mercedes <mercedes-boun...@okiebenz.com<mailto: > mercedes-boun...@okiebenz.com>> on behalf of OK Don via > >>> Mercedes <mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> > >>> Sent: Wednesday, January 5, 2022 9:34 PM > >>> To: Mercedes Discussion List <mercedes@okiebenz.com<mailto: > mercedes@okiebenz.com>> > >>> Cc: OK Don <okd...@gmail.com<mailto:okd...@gmail.com>> > >>> Subject: Re: [MBZ] Mercedes is selling vaporware > >>> > >>> The Mitsubishi mini-split we had installed last year is rated for > either > >> 5 > >>> or 10F. It has been down to 15F so far, and it held the temp just fine. > >> The > >>> temp is supposed to drop to 12F tonight - we'll see.It's also very > quiet. > >>> > >>> On Wed, Jan 5, 2022 at 7:46 PM Dwight Giles via Mercedes < > >>> mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> wrote: > >>> > >>>> yes we just had one rated 4F installed in our church rectory. > >>>> the one we put in our house 15 years ago is rated 30F for heat > >>>> > >>>> On Wed, Jan 5, 2022, 6:00 PM dan penoff.com via Mercedes < > >>>> mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> wrote: > >>>> > >>>>> Actually, there are heat pumps now rated for lower temperatures. My > >>>>> insulation guys in Flagstaff offered me a mini-split that’s good down > >>> to > >>>> 4F > >>>>> (-15C) for the casita. Granted, I can’t imagine the air temperature > >>>> coming > >>>>> out of it would be that great, but it’s supposed to produce heat down > >>> to > >>>>> that ambient temperature. > >>>>> > >>>>> I passed for now, but I may still do it so I can disable the old gas > >>> wall > >>>>> furnace that’s currently in there. > >>>>> > >>>>> -D > >>>>> > >>>>> Sent from my iPad > >>>>> > >>>>>> On Jan 5, 2022, at 3:08 PM, Randy Bennell via Mercedes < > >>>>> mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> wrote: > >>>>>> > >>>>>> It really isn't a problem for Tesla owners to keep the car warm in > >>>>> really cold weather. They just light it on fire and it burns hot for > >>>> days. > >>>>>> > >>>>>> Heat pumps for houses don't work here in the winter temperatures. > >>> They > >>>>> are fine in spring and fall but come winter, you will be relying upon > >>>>> electric heat built in to the heat pump system. > >>>>>> > >>>>>> Randy > >>>>>> > >>>>>> > >>>>>> > >>>>>>> On 05/01/2022 2:39 PM, Allan Streib via Mercedes wrote: > >>>>>>> Ask the folks in Teslas who were stranded on the interstate in > >>>> Virginia. > >>>>>>> > >>>>>>> I think at least the newer EV cars do not use resistance heating, > >>>> which > >>>>> would be a heavy drain on the batteries, but use a heat pump system > >>> which > >>>>> should be more efficient, at least as long as it's not *too* cold > >>>> outside. > >>>>>>> > >>>>>>> I don't know how a half-charged EV vs. a car with a half-tank of > >> gas > >>>>> would compare as far as keeping warm enough to prevent hypothermia > >> in a > >>>>> "stranded in a blizzard" scenario. > >>>>>>> > >>>>>>> Allan > >>>>>>> > >>>>>>> > >>>>>> > >>>>>> > >>>>>> _______________________________________ > >>>>>> http://www.okiebenz.com > >>>>>> > >>>>>> To search list archives http://www.okiebenz.com/archive/ > >>>>>> > >>>>>> To Unsubscribe or change delivery options go to: > >>>>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >>>>>> > >>>>> _______________________________________ > >>>>> http://www.okiebenz.com > >>>>> > >>>>> To search list archives http://www.okiebenz.com/archive/ > >>>>> > >>>>> To Unsubscribe or change delivery options go to: > >>>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >>>>> > >>>>> > >>>> _______________________________________ > >>>> http://www.okiebenz.com > >>>> > >>>> To search list archives http://www.okiebenz.com/archive/ > >>>> > >>>> To Unsubscribe or change delivery options go to: > >>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >>>> > >>>> > >>> > >>> -- > >>> OK Don > >>> > >>> "Whenever you find yourself on the side of the majority, it is time to > >>> pause and reflect." Mark Twain > >>> > >>> “Basic research is what I’m doing when I don’t know what I am doing.” > >>> Wernher > >>> Von Braun > >>> 2013 F150, 18 mpg > >>> 2017 Subaru Legacy, 30 mpg > >>> 1957 C182A, 12 mpg - but at 150 mph! > > >>> _______________________________________ > >>> http://www.okiebenz.com > >>> > >>> To search list archives http://www.okiebenz.com/archive/ > >>> > >>> To Unsubscribe or change delivery options go to: > >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >>> > >>> _______________________________________ > >>> http://www.okiebenz.com > >>> > >>> To search list archives http://www.okiebenz.com/archive/ > >>> > >>> To Unsubscribe or change delivery options go to: > >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >>> > >>> > >> > >> -- > >> OK Don > >> > >> "Whenever you find yourself on the side of the majority, it is time to > >> pause and reflect." Mark Twain > >> > >> “Basic research is what I’m doing when I don’t know what I am doing.” > >> Wernher > >> Von Braun > >> 2013 F150, 18 mpg > >> 2017 Subaru Legacy, 30 mpg > >> 1957 C182A, 12 mpg - but at 150 mph! > >> _______________________________________ > >> http://www.okiebenz.com > >> > >> To search list archives http://www.okiebenz.com/archive/ > >> > >> To Unsubscribe or change delivery options go to: > >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >> > >> > > _______________________________________ > > http://www.okiebenz.com > > > > To search list archives http://www.okiebenz.com/archive/ > > > > To Unsubscribe or change delivery options go to: > > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
