Forum: Geothermal & Heat Pumps
10-06-18, 09:01 AM
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Replies: 1,943
Views: 4,698,250
made a tube in tube water to R22 exchanger
...
made a tube in tube water to R22 exchanger
36mm inside diameter PVC plastic pipe carries water
Inside the PVC pipe have 18 mm diameter coper pipe with R22 inside.
25 meters length = ...
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Forum: Geothermal & Heat Pumps
05-29-18, 11:38 PM
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Replies: 1,943
Views: 4,698,250
epoxy path dont hold to pressur heat and...
epoxy path dont hold to pressur heat and chemicals
wow, if you find and epoxy that will hold 410 apllied on external surfaces. let us in on the details of the type AND specific application...
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Forum: Geothermal & Heat Pumps
07-20-16, 01:31 PM
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Replies: 1,943
Views: 4,698,250
Need to do the math, I guess.
Own approach...
Need to do the math, I guess.
Own approach is to do the math first.
Bone up on yu enthalpy charts and Mollier diagram equations.
COP of 5 to 6 is easily doable for a small system if your...
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Forum: Geothermal & Heat Pumps
10-26-15, 06:42 AM
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Replies: 1,943
Views: 4,698,250
'how do you know'
re: pipe slope and oil
...
'how do you know'
re: pipe slope and oil
43 years ago built first diy HP from 1968 Chrysler AC which was a 2 cylinder recip compressor. Drove it with a 5HP 184T frame motor (real 5 HP). ...
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Forum: Geothermal & Heat Pumps
01-05-15, 09:08 AM
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Replies: 1,943
Views: 4,698,250
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Forum: Geothermal & Heat Pumps
01-04-15, 08:07 PM
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Replies: 1,943
Views: 4,698,250
diy cable tool
Couple of notes on cable tool drilling.
1st try was 45 years ago for drinking water - simple capstan and 200# bit with manila rope.
Got down about 10 ft and hit a basalt boulder - dead stop,...
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Forum: Geothermal & Heat Pumps
09-06-13, 07:38 AM
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Replies: 1,943
Views: 4,698,250
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Forum: Geothermal & Heat Pumps
09-05-13, 06:06 PM
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Replies: 1,943
Views: 4,698,250
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Forum: Geothermal & Heat Pumps
08-30-13, 09:41 PM
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Replies: 1,943
Views: 4,698,250
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Forum: Geothermal & Heat Pumps
06-06-13, 07:24 AM
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Replies: 1,943
Views: 4,698,250
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Forum: Geothermal & Heat Pumps
09-18-11, 10:21 PM
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Replies: 1,943
Views: 4,698,250
re:
It went to 15 ft. and then hit a pocket...
re:
It went to 15 ft. and then hit a pocket of what must be small rock as it gets stuck there
I see that G NR G is in the Seattle area. Have drilled a couple of wells east of Renton and am...
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Forum: Geothermal & Heat Pumps
04-26-11, 08:29 AM
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Replies: 1,943
Views: 4,698,250
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Forum: Geothermal & Heat Pumps
04-06-11, 08:38 AM
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Replies: 1,943
Views: 4,698,250
This site looks like a good site to start a...
This site looks like a good site to start a separate thread when I have time (may not be till I retire later this year)
Think there is a pix attached if attachment tool worked,
LH is control...
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Forum: Geothermal & Heat Pumps
04-05-11, 04:54 PM
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Replies: 1,943
Views: 4,698,250
Congratualtions on 100k hits!
Neat thread....
Congratualtions on 100k hits!
Neat thread. My first time here.
Glad to see a nice group of folks not intimidated by the so-called pros, nor inundated by the 'ha-ha' type of know-nothings...
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