Forum: Geothermal & Heat Pumps
04-20-17, 11:43 PM
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Replies: 24
Views: 19,782
The main difference between mini-splits and...
The main difference between mini-splits and standard-size split systems lies in the outdoor unit. All standard-sized systems have a liquid and gas line leaving the box. These two lines may or may not...
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Forum: Renovations & New Construction
11-03-16, 10:18 AM
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Replies: 161
Views: 234,129
Building your own out of what have you is not...
Building your own out of what have you is not impossible. AC Hacker, Randen, and Aquario all have discussion threads detailing their custom builds. The general principles used in the smaller units...
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Forum: Conservation
04-24-16, 07:26 PM
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Replies: 6
Views: 9,912
Yes, with your flow rater (constant pressure...
Yes, with your flow rater (constant pressure expansion valve or CPEV) metered system, you will not get the reduction in capacity as with a cap tube. For low-ambient operation, what you would want to...
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Forum: Appliances & Gadgets
03-31-16, 02:42 PM
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Replies: 2
Views: 6,315
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Forum: Conservation
07-23-15, 12:47 PM
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Replies: 2
Views: 9,949
Kume insulating curtains - DIY & inexpensive
http://ecorenovator.org/forum/attachment.php?attachmentid=5649&stc=1&d=1437669557
Another find from Build it Solar (http://builditsolar.com/). Kume (http://www.kumeproject.com/) has a simple...
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Forum: Conservation
11-08-14, 06:29 PM
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Replies: 0
Views: 6,575
Free On-Line Classes...
(* I'm not sure where to put this thread... I think it would best be put in the sticky "Announcements" thread, but there isn't one. *)
I have found an site that does on-line courses, that are very...
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Forum: Geothermal & Heat Pumps
07-14-14, 12:33 AM
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Replies: 331
Views: 208,521
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Forum: Geothermal & Heat Pumps
05-27-14, 04:54 PM
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Replies: 3
Views: 7,312
Deep Energy Retrofits
The US Department of Energy is doing a free siminar called, "Who's Successfully Doing Deep Energy Retrofits?"
Looks like it could be of interest to those of us who are concerned with preventing...
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Forum: Tools
04-14-14, 06:13 PM
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Replies: 16
Views: 17,379
Review: Most Basic Temperature Logger
I bought one of these little rubies off ebay for $13.85.
A couple of weeks it arrived...
http://ecorenovator.org/forum/attachment.php?attachmentid=4266&stc=1&d=1397512675
'Most Basic' pretty...
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Forum: Geothermal & Heat Pumps
02-10-14, 12:18 PM
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Replies: 79
Views: 63,345
another hot water tank heat pump
I can see the finish line clearly now. We drained and removed the Rented Propane fired Hot water tank. And in went the DIY heat-pump hot water tank. Not so smoothly. Old copper fittings are a little...
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Forum: Lighting
02-08-14, 09:55 PM
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Replies: 11
Views: 14,997
re-use 'burnt out' T12 bulbs
Scored a score of 3 lamp electronic ballasts on ebay a few months back, for 3ea 32W T8 bulbs. About $4 ea ballast.
Have noticed that the 'burnt out' 40W T12 fluorescent tubes waiting to go to...
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Forum: Solar Power
12-24-13, 11:26 AM
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Replies: 745
Views: 705,025
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Forum: Renovations & New Construction
12-14-13, 02:44 PM
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Replies: 257
Views: 234,281
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Forum: Renovations & New Construction
12-02-13, 01:49 AM
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Replies: 15
Views: 12,471
Mnrenovator, under ideal conditions the...
Mnrenovator, under ideal conditions the references I've seen show a minimum of about 60% conversion efficiency for a flat plate air solar panel. Conditions are never ideal however, especially in...
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Forum: Geothermal & Heat Pumps
11-25-13, 04:31 PM
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Replies: 44
Views: 44,911
I'm working on the control software. At this...
I'm working on the control software. At this point, I can "run" it by manually adjusting the water pump and fan speeds, good enough to prove that it works but not very practical. Can't get any real...
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Forum: Solar Heating
11-09-13, 06:41 PM
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Replies: 5
Views: 20,384
Inexpensive Backdraft Damper that actually works
I have tried the store bought metal butterfly backdraft dampers with the 4 hot air collectors I have plugged into my house.
None of them were stopping the cold air backdrafts that happen when the...
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Forum: Renovations & New Construction
10-18-13, 02:52 PM
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Replies: 12
Views: 13,571
^^^This!^^^
Passive solar design requires...
^^^This!^^^
Passive solar design requires solar gain in the winter and shading in the summer. I did a quick search for "calculate roof overhang passive solar" and here is a link that looks...
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Forum: Geothermal & Heat Pumps
09-23-13, 03:24 PM
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Replies: 35
Views: 27,900
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Forum: Solar Power
09-09-13, 07:42 PM
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Replies: 745
Views: 705,025
Hi,
Sure, I installed the system a couple of...
Hi,
Sure, I installed the system a couple of years ago and I filed the receipts with my tax papers but I think it went somewhat like this:
28 Bosch 230 watt modules ~$480 each total = 6.44Kw...
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Forum: Solar Power
09-09-13, 07:10 PM
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Replies: 745
Views: 705,025
MN Renovator,
My Sunpower 10 - 245w panels,...
MN Renovator,
My Sunpower 10 - 245w panels, turn key install is $4.52 watt. With only Fed rebate, $7,751.80 total. Sun Valley Solar will be adding 3k SMA.
This is add to 9.2kw with 40 - 230w...
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Forum: Conservation
05-10-13, 08:09 PM
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Replies: 14
Views: 15,582
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Forum: Conservation
05-09-13, 11:24 PM
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Replies: 14
Views: 15,582
This site ...
This site
http://www.pilkington.com/~/media/Pilkington/Site%20Content/UK/Reference/TableofDefaultUValues.ashx
has a rather interesting table showing the U value for different air gaps and glass...
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Forum: Conservation
05-09-13, 10:55 PM
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Replies: 14
Views: 15,582
There's some good info here too
Your Home...
There's some good info here too
Your Home Technical Manual - 4.10 Glazing (http://www.yourhome.gov.au/technical/fs410.html)
Out of interest has anyone tried using plexiglass instead of normal...
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Forum: Renovations & New Construction
02-12-13, 02:55 PM
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Replies: 99
Views: 68,898
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Forum: Conservation
08-15-12, 09:40 AM
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Replies: 6
Views: 7,885
I was like you, in some ways. My roommate and I...
I was like you, in some ways. My roommate and I kept the house at 59-60 (yes, that is not a typo), during the winter. I often wore 2 pairs of socks and a beanie. When I got my own apartment, I was...
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