Forum: Geothermal & Heat Pumps
03-31-22, 05:41 AM
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Replies: 11
Views: 48,013
See vortex tube,...
See vortex tube, https://en.wikipedia.org/wiki/Vortex_tube
Commercial vortex tubes are designed for industrial applications to produce a temperature drop of up to 71 °C (160 °F). With no moving...
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Forum: Conservation
01-28-21, 04:24 PM
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Replies: 10
Views: 51,120
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Forum: Conservation
01-24-19, 10:15 PM
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Replies: 575
Views: 1,419,311
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Forum: Geothermal & Heat Pumps
01-02-19, 06:28 AM
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Replies: 6
Views: 13,125
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Forum: Geothermal & Heat Pumps
01-02-19, 05:41 AM
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Replies: 6
Views: 13,125
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Forum: Geothermal & Heat Pumps
12-17-18, 09:14 AM
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Replies: 6
Views: 13,125
here is the diagram
Easy question for DIY plumbers is how to run a 2 inch pvc pipe down the middle of a 6 or 8 inch pipe?
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Forum: Geothermal & Heat Pumps
12-17-18, 09:10 AM
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Replies: 6
Views: 13,125
Combination vertical/horizontal geothermal
My idea is this: dig 10 to 20 ten foot wells and use, say 6 or 8 inch pvc pipes (available at the box stores). Put a plug at the bottom. have a reducing T-connector and a PVC plug in the top. Have a...
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Forum: Conservation
01-08-13, 07:06 AM
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Replies: 100
Views: 193,622
Great discussion. The kicker in all of this is...
Great discussion. The kicker in all of this is the darn lint. It complicates things and can be a fire hazard. I saw a you tube video (http://www.youtube.com/watch?v=vfExQ3mwBH8) on the use of the...
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Forum: Conservation
09-22-11, 06:38 PM
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Replies: 575
Views: 1,419,311
Piwoslaw writes, "Have the inbound cold air in...
Piwoslaw writes, "Have the inbound cold air in the outer layer. That way the warmer, outbound air doesn't lose heat through the outer wall - more of it can be absorbed by the inbound stream."
My...
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Forum: Conservation
09-22-11, 06:32 PM
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Replies: 575
Views: 1,419,311
Really simple heat exchanger
Yes, I was thinking of using fins to hold the center pipe. My point is to use K.I.S.S. (keep it simple stupid). Sure one can design and make a air to air heat exchanger with near perfect numbers -...
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Forum: Conservation
09-22-11, 08:08 AM
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Replies: 575
Views: 1,419,311
I actually have been thinking about this very...
I actually have been thinking about this very problem, a diy, inexpensive air to air heat exchanger. I would like to do this for my crawl space. I am not a big believer in radon risks. I thought...
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Forum: Solar Heating
09-18-11, 10:14 PM
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Replies: 7
Views: 12,480
160 degree water into the hot water line is...
160 degree water into the hot water line is dangerous! A mixing valve is mandatory. Here is one from Amazon: Amazon.com: Honeywell R-AM-101C-US-1 Thermostatic Mixing Valve: Home Improvement...
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Forum: Solar Heating
09-18-11, 05:28 PM
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Replies: 25
Views: 110,392
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