Forum: Solar Heating
10-20-20, 09:07 AM
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Replies: 128
Views: 153,846
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Forum: Geothermal & Heat Pumps
09-25-19, 06:57 PM
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Replies: 12
Views: 29,692
AC_Hacker installs a new Mini-Split
I installed my original mini-split in around 2009, before I started my Homemade Heat Pump Manifesto project. The heat pump I installed then was a Sanyo KS0971 (+ C0971
+ CL0971). It had what I...
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Forum: Conservation
08-04-19, 10:12 AM
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Replies: 189
Views: 232,090
Any one working toward Off Grid
Fellow Eco-renovators
This huge project is nearing completion. The addition of another 3.5 kws of solar panels is complete.
During this summer we have been off the grid for 95% of the time. The...
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Forum: Geothermal & Heat Pumps
01-01-18, 11:19 AM
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Replies: 645
Views: 625,782
My first Gree has been installed for a while...
My first Gree has been installed for a while now.. Fall of 2016..
http://ecorenovator.org/forum/geothermal-heat-pumps/4903-gree-crown-18kbtu-install-9.html
I have not purchased one for the den yet....
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Forum: Conservation
05-13-17, 12:01 AM
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Replies: 25
Views: 29,441
I thought I would give a follow-up.
The...
I thought I would give a follow-up.
The S-10EV is on the road and is driving wonderfully. The Chevy Volt battery packs are providing great performance for this little truck. I still have some...
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Forum: Geothermal & Heat Pumps
03-14-16, 11:42 AM
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Replies: 1,943
Views: 5,530,064
New Thread for HVAC-oriented Talk.
Since it is clear that there is an irrepressible urge to free-associate about vapor-compression topics, I have created a thread that will be a welcoming home for those folks who keep making the...
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Forum: Solar Power
10-07-15, 12:12 PM
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Replies: 7
Views: 7,727
Great! I ordered some $7 12v timers from China...
Great! I ordered some $7 12v timers from China when I started the project and they finally just showed up now but it's time to blow the lines out as its starting to freeze some nights so I'll try...
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Forum: Geothermal & Heat Pumps
03-09-15, 03:54 AM
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Replies: 645
Views: 625,782
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Forum: Geothermal & Heat Pumps
12-12-14, 04:04 PM
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Replies: 645
Views: 625,782
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Forum: Geothermal & Heat Pumps
12-12-14, 03:18 PM
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Replies: 645
Views: 625,782
"Long-term Mini-Split case study" from BSI
How many posts to share a link? I've been lurking in some of the Ground-Source Heat-Sink DIY threads, then found my way here. One of my favorite building-stuff sites, BuildingScience dot com, put out...
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Forum: Tools
12-07-14, 05:56 PM
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Replies: 12
Views: 19,369
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Forum: Renovations & New Construction
11-30-14, 07:45 AM
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Replies: 50
Views: 88,764
Just read this discussion.
What I didn't read...
Just read this discussion.
What I didn't read in this discussion, are these two things:
1. The heat transfer from water to the pipe is depending on water velocity.
As soon as waterflow is so low,...
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Forum: Geothermal & Heat Pumps
10-24-14, 03:57 PM
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Replies: 15
Views: 15,202
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Forum: Appliances & Gadgets
10-08-14, 02:46 PM
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Replies: 18
Views: 15,210
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Forum: Renovations & New Construction
07-31-14, 12:49 PM
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Replies: 6
Views: 7,668
Zero Energy Homes in Europe
I came across a couple of very interesting videos that illustrate just how Zero Energy Homes are no longer just a curiosity and are entering full-scale production.
...
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Forum: Geothermal & Heat Pumps
07-03-14, 11:03 AM
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Replies: 331
Views: 207,731
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Forum: Geothermal & Heat Pumps
07-02-14, 04:12 PM
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Replies: 331
Views: 207,731
Designing a General Purpose Heat Pump Controller
The Homemade Heat Pump concept has had some notable success.
However, one link in the chain that is missing is an open-source general-purpose heat pump controller.
If such a controller existed,...
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Forum: Geothermal & Heat Pumps
04-26-14, 01:29 PM
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Replies: 18
Views: 14,677
Solar with HP study
http://www.task51.iea-shc.org/data/sites/1/publications/2010-Kjellsson_Art-T44-Kjellson_2009_Sciencedirectarticle%5B09%5D_in_press.pdf
Conclusions pg6
There are three major reasons for adding...
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Forum: Geothermal & Heat Pumps
03-18-14, 08:20 PM
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Replies: 12
Views: 15,835
I found the TRAINING manual for the geospring...
I found the TRAINING manual for the geospring units. Another quirk of Philips and Thomson, this manual is easy to understand and tells you secrets about the models (unlike the service manuals, which...
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Forum: Geothermal & Heat Pumps
03-18-14, 01:05 AM
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Replies: 293
Views: 140,693
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Forum: Solar Power
01-27-14, 04:31 PM
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Replies: 9
Views: 8,823
If this is what you are after, I think that a...
If this is what you are after, I think that a great program for you is the Passive House Planning Package (Also called "PHPP").
It takes almost everything into account: geographic location, house...
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Forum: Geothermal & Heat Pumps
12-31-13, 06:11 PM
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Replies: 34
Views: 56,420
Now, Im absolutely not an expert on this stuff,...
Now, Im absolutely not an expert on this stuff, and should be fully verified before you use it to make any decisions. There are several things that must be considered when selecting a gas, type of...
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Forum: Lighting
12-22-13, 11:17 PM
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Replies: 16
Views: 18,014
DIY 3D printed recessed LED fixtures
[EDIT] sorry, some of the pictures are upside down.
So, the original 1980s light fixtures in our upstairs hallway have always bothered me a bit. They just look... well, so 1980s. Since I've built...
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Forum: Geothermal & Heat Pumps
10-28-13, 01:06 PM
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Replies: 79
Views: 62,789
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Forum: Conservation
03-08-13, 03:27 AM
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Replies: 105
Views: 108,153
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