I was under the impression that horizontal was always cheaper but considering
the depth I'm not sure anymore.
It'll be a few years before I really worry about it, this is just a summer
house for now...
-Curt
On Tuesday, January 16, 2024 at 12:32:02 AM EST, MB list etc via Mercedes
wrote:
Might it be cheaper and easier to drill a hole straight down rather than
digging a 100 - 300 feet long 12 feet deep trench?
Talk to a professional geothermal dude, pretending to be considering him to do
the job, listen to what he tells you is needed.
On Monday, January 15th, 2024 at 5:48 PM,
Our water table is real high. For reference our well pump is a piston pump
located in the basement of the house. I posted a picture one time, Jim Cathey
figured the pump to be from the '20s.
The pump sits maybe 8' below ground, so the well can't be more than like 30
feet from the surface...
The deeper the better, if you go deep enough the temp should approximate
the annual average air temp. But unless your loop is infinitely large,
the heat pump will cool the earth in the winter and warm it in the
summer if you use AC.
I had neighbors install a groundwater system with a hot well
Pretty much matches what I saw, we're right on the line between 80 and 90". I'd
guess you'd ought to err on the side of caution in a place where -30F is not
unheard of.
-Curt
On Monday, January 15, 2024 at 07:04:15 PM EST, Craig via Mercedes
wrote:
On Mon, 15 Jan 2024 23:48:01 +
How deep can a Ditch Witch go? The best I can find from Google is a 7.5' (90")
frost line for Caribou. I'd been under the impression we could do the
horizontal piping at 10' but now I'm thinking maybe 12...
-Curt
On Sunday, January 14, 2024 at 04:32:13 PM EST, Jim Cathey via Mercedes
wrote:
Our ground source geothermal heat pump is still working great 10 years in. It
has two 300 ft. deep wells with ABS pipe looped down and up through both holes.
It paid for it's self in a little less than 7 years in reduced energy bills.
The main circuit board and thermostat were replaced under
WOW! X-10! You’re dating yourself. I think I have a few pieces of that stuff in
the back of a desk drawer…
-D
> On Jan 14, 2024, at 5:34 PM, Jim Cathey via Mercedes
> wrote:
>
>> Yup. Not allowed around my house.
>
> Nor here. We do have some X-10 stuff for timed lights. (The Christmas
>
> Yup. Not allowed around my house.
Nor here. We do have some X-10 stuff for timed lights. (The Christmas
lights, and Malibu LV walkway lights.) One X-10 wall switch for running
the porch lights, all timed (open-loop) from sunset to 11:30 currently.
The Christmas light channel only operates
Yup same here.
Sent from my iPhone
> On Jan 14, 2024, at 3:48 PM, dan penoff.com via Mercedes
> wrote:
>
> Yup. Not allowed around my house. It’s bad enough that my phone listens to
> me, I’m not talking to “Alexa” or any of that stuff. It’s more of a privacy
> thing for me.
>
> -D
>
Yup. Not allowed around my house. It’s bad enough that my phone listens to me,
I’m not talking to “Alexa” or any of that stuff. It’s more of a privacy thing
for me.
-D
> On Jan 14, 2024, at 4:43 PM, Allan Streib via Mercedes
> wrote:
>
>> There's a lot to be said for simplicity.
>
> The
I heard a really good story on NPR a couple of Mondays ago when I was driving
over to Orlando to pick up my new W215 wheels. It was a "Planet Money” or “How
I Built This” story, I thought. A company in upstate NY tried to do ground
source (geothermal) heat pumps but was failing miserably at it.
> There's a lot to be said for simplicity.
The older I get the more I appreciate this.
Some guys I know are big into "home automation" they have computers and
controllers on their lights and appliances and running their heat and A/C and
it will do stuff like dim the living room lights at 6pm.
> the [in-ground] upfront cost is crazy, like $40,000 instead of a $6,000 oil
> furnace.
That is ludicrous. If you have space it shouldn't cost incrementally more
than an air-exchange pump, beyond what it takes to ditch-witch a 4' (?)
deep trench around the place and throw poly pipe down in it.
On 2024-01-14 13:57, Kaleb Striplin via Mercedes wrote:
A few years ago I looked around online at Goodman 5 ton heat pumps and
IIRC they were less than 2k for the inside and outside unit. Now days
they are double or triple that.
Looks like the stuff I bought, from the place I bought it (I had
A few years ago I looked around online at Goodman 5 ton heat pumps and IIRC
they were less than 2k for the inside and outside unit. Now days they are
double or triple that.
Sent from my iPhone
> On Jan 14, 2024, at 12:54 PM, mitch--- via Mercedes
> wrote:
>
> On 2024-01-14 13:48, Curt
I can rent an excavator for $360/day delivered. Actually that one probably
can't dig deep enough, $660 for the next size up which would do the job,
probably could do all the digging in 2 days or less.
That said I've been really eyeing the little 12hp Chinese made excavators.
$6000-7000 but
On 2024-01-14 13:48, Curt Raymond via Mercedes wrote:
I don't consider a heat pump to be a good primary heating system
because they don't last all that long. The boiler in our house is at
least 20 years old (probably more like 30) and still going strong, heat
pumps would have to have been
I wonder if you could buy the components and a good used excavator for
less than the installed price.
A friend of mine has a KX-015, I never knew it was only 13hp.
He has a thumb on the bucket and has used it to lift fallen trees.
___
http://www.okiebenz.com
Most modern air source heat pumps are rated down to at least zero F. How much
time do you spend below that? We hit -9F last year once overnight.
Most units have some kind of resistive electric for backup.
I don't consider a heat pump to be a good primary heating system because they
don't last
I've been considering ground source on the great northern estate. We still
might but the upfront cost is crazy, like $40,000 instead of a $6,000 oil
furnace.
The feds will pay 30%, efficiency Maine will give another $3,000 but I might
have to live there for a year to get it which wouldn't be
On 2024-01-13 16:06, Allan Streib via Mercedes wrote:
They have but they still crap out in real cold. I'd definitely want to
have a wood stove or other backup heat source if I had to have a heat
pump.
Except for mini splits, every installation I've see has an integrated
backup.
Either
I need to get some of that insulation on lines out at the unit. There is about a foot of it missing right out of the unit. I can say it’s about 12 outside and the large line is too hot to touch. So even at these temps it’s still pulling a good amount of heat out of the air. And yes, I do believe
Good point. We had an oil furnace at the time that served as a backup.
On Sat, Jan 13, 2024, 4:07 PM Allan Streib wrote:
> They have but they still crap out in real cold. I'd definitely want to
> have a wood stove or other backup heat source if I had to have a heat pump.
>
>
> On Sat, Jan 13,
They have, significantly.
I’ve got a couple of mini-split air source heat pumps at the AZ house, where
it’s been getting into the teens and single digits at night of late. Both are
rated at 90% or better at -4F, as I recall. I really wished we had looked into
a ground source heat pump for the
They have but they still crap out in real cold. I'd definitely want to have a
wood stove or other backup heat source if I had to have a heat pump.
On Sat, Jan 13, 2024, at 15:56, Andrew Strasfogel via Mercedes wrote:
> I guess heat pumps have improved their efficiency since the 70s.
>
> On Sat,
I guess heat pumps have improved their efficiency since the 70s.
On Sat, Jan 13, 2024 at 11:33 AM Kaleb Striplin via Mercedes <
mercedes@okiebenz.com> wrote:
> HSPF is 10.6. The old Rheem indoor air handler/coil is rated at 16 Seer.
> I figured the unit as a whole would run 16.
>
> Sent from my
HSPF is 10.6. The old Rheem indoor air handler/coil is rated at 16 Seer. I
figured the unit as a whole would run 16.
Sent from my iPhone
> On Jan 13, 2024, at 10:25 AM, mitch--- via Mercedes
> wrote:
>
> The new outdoor unit probably has a bigger coil and will make heat at a
> lower temp
The new outdoor unit probably has a bigger coil and will make heat at a
lower temp than the old one.
If it's a "17 seer" unit, I'd expect a good bit less than that without a
matching air handler/indoor coil. What's the HSPF on the outdoor unit,
is it ten or better?
After running in emergency mode on the heat pump since before Christmas, the
new heat pump was installed Thursday by American Home Shield’s contractor. It’s
a Lennox Merit series 5 ton unit which is their base models. It seems to run
more quietly than that old Rheem. I asked the contractor for
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