Forum: Geothermal & Heat Pumps
04-06-17, 09:54 AM
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Replies: 91
Views: 72,196
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Forum: Geothermal & Heat Pumps
04-04-17, 04:37 PM
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Replies: 91
Views: 72,196
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Forum: Geothermal & Heat Pumps
09-12-12, 12:16 PM
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Replies: 91
Views: 72,196
Well grayhawk,
You certainly have my...
Well grayhawk,
You certainly have my attention.
I for one am very glad that you are posting your progress in such useful detail.
What kind of USB based logic analyzer are you using? I saw...
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Forum: Geothermal & Heat Pumps
09-07-12, 11:58 AM
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Replies: 91
Views: 72,196
Could THIS...
Could THIS (http://diyistheway.blogspot.com/2009/03/thermosmart.html) be useful?
-AC
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Forum: Geothermal & Heat Pumps
08-26-12, 10:07 PM
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Replies: 91
Views: 72,196
Thanks, grayhawk...
This is a topic that has...
Thanks, grayhawk...
This is a topic that has tremendous potential in many different ways. The most compelling reason for me is that the mini-splits are so efficient, and also, if properly...
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Forum: Geothermal & Heat Pumps
08-25-12, 10:35 PM
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Replies: 91
Views: 72,196
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Forum: Geothermal & Heat Pumps
05-22-12, 02:20 PM
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Replies: 91
Views: 72,196
Question about schematic...
Acuario,
I'm about to build the interface as in your schematic or similar.
I found this part (DS275 (http://datasheets.maxim-ic.com/en/ds/DS275.pdf))...
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Forum: Geothermal & Heat Pumps
05-11-12, 10:33 AM
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Replies: 91
Views: 72,196
That was what I was trying to determine when I...
That was what I was trying to determine when I read the potential from ground to the data wire with my multimeter.
The DC potential was 14.77 volts and steady and the AC was not steady and about...
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Forum: Geothermal & Heat Pumps
05-10-12, 02:00 PM
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Replies: 91
Views: 72,196
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Forum: Geothermal & Heat Pumps
05-08-12, 06:11 PM
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Replies: 91
Views: 72,196
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Forum: Geothermal & Heat Pumps
04-12-12, 02:16 PM
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Replies: 91
Views: 72,196
Acuario,
As far as I'm concerned, this...
Acuario,
As far as I'm concerned, this project you have going is the holy grail of heat pump hacking.
Modern mini-splits have wonderful efficiency, rivaling GSHP of a decade ago, and getting an...
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