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Search: Posts Made By: MN Renovator
Forum: Geothermal & Heat Pumps 04-20-17, 11:43 PM
Replies: 24
Views: 4,687
Posted By jeff5may
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...
Forum: Renovations & New Construction 11-03-16, 10:18 AM
Replies: 161
Views: 36,549
Posted By jeff5may
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...
Forum: Conservation 04-24-16, 07:26 PM
Replies: 6
Views: 2,733
Posted By jeff5may
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...
Forum: Appliances & Gadgets 03-31-16, 02:42 PM
Replies: 2
Views: 1,562
Posted By mejunkhound
6 kW-hrs, room ambient about 58F (which is where...

6 kW-hrs, room ambient about 58F (which is where the WH draws the evaporator air) Actually, between 6 and 7 kW-hrs as the meter reads only to the kW-hr level, no fractions.

do have added R-11...
Forum: Conservation 07-23-15, 12:47 PM
Replies: 2
Views: 3,678
Posted By Daox
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...
Forum: Conservation 11-08-14, 06:29 PM
Replies: 0
Views: 1,520
Posted By AC_Hacker
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...
Forum: Geothermal & Heat Pumps 07-14-14, 12:33 AM
Replies: 331
Views: 79,117
Posted By NiHaoMike
My favorites are the various PICs. Anything from...

My favorites are the various PICs. Anything from tiny 6 pin low cost microcontrollers to huge 100+ pin 32 bit processors are supported by MPLAB X, including many breadboard-friendly DIP devices. The...
Forum: Geothermal & Heat Pumps 05-27-14, 04:54 PM
Replies: 3
Views: 1,885
Posted By AC_Hacker
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...
Forum: Tools 04-14-14, 06:13 PM
Replies: 16
Views: 6,215
Posted By AC_Hacker
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...
Forum: Geothermal & Heat Pumps 02-10-14, 12:18 PM
Replies: 79
Views: 25,364
Posted By randen
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...
Forum: Lighting 02-08-14, 09:55 PM
Replies: 11
Views: 3,828
Posted By mejunkhound
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...
Forum: Solar Power 12-24-13, 11:26 AM
Replies: 741
Views: 174,342
Posted By pinballlooking
A borrowed card but a good solar card.

A borrowed card but a good solar card.
Forum: Renovations & New Construction 12-14-13, 02:44 PM
Replies: 257
Views: 67,321
Posted By AC_Hacker
You might want to verify what the minimum bending...

You might want to verify what the minimum bending radius of your selected PEX is specified to be.

Different brands of PEX seem to have slightly different bending radius specs.

For instance the...
Forum: Renovations & New Construction 12-02-13, 01:49 AM
Replies: 15
Views: 3,409
Posted By Exeric
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...
Forum: Geothermal & Heat Pumps 11-25-13, 04:31 PM
Replies: 44
Views: 19,358
Posted By NiHaoMike
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...
Forum: Solar Heating 11-09-13, 06:41 PM
Replies: 5
Views: 6,921
Posted By solarhotairpanels
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...
Forum: Renovations & New Construction 10-18-13, 02:52 PM
Replies: 12
Views: 4,333
Posted By TimJFowler
^^^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...
Forum: Geothermal & Heat Pumps 09-23-13, 03:24 PM
Replies: 35
Views: 8,631
Posted By pinballlooking
I have a TED-5000C energy monitor so I should be...

I have a TED-5000C energy monitor so I should be able to figure out where to best cut off to the gas heat.
I know some companies choose to void their warranty if you buy online I usually choose not...
Forum: Solar Power 09-09-13, 07:42 PM
Replies: 741
Views: 174,342
Posted By Robaroni
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...
Forum: Solar Power 09-09-13, 07:10 PM
Replies: 741
Views: 174,342
Posted By Vern2
Smile 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.

Live link to 9.2k system....
Forum: Conservation 05-10-13, 08:09 PM
Replies: 14
Views: 5,148
Posted By Mikesolar
Another option I have seen people do is to get...

Another option I have seen people do is to get some strip magnet, glue it to the frame then the same on opposite piece of plexiglas. It is removable and will seal as well as a magnet can.
Forum: Conservation 05-09-13, 11:24 PM
Replies: 14
Views: 5,148
Posted By nitro-nige
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...
Forum: Conservation 05-09-13, 10:55 PM
Replies: 14
Views: 5,148
Posted By nitro-nige
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...
Forum: Renovations & New Construction 02-12-13, 02:55 PM
Replies: 99
Views: 24,604
Posted By S-F
Latest Installment: Air Sealing The Attic ...

Latest Installment:

Air Sealing The Attic


http://i182.photobucket.com/albums/x270/saint-francis-photos/IMG_20130212_113343_zps88a2bceb.jpg


...
Forum: Conservation 08-15-12, 09:40 AM
Replies: 6
Views: 2,389
Posted By natethebrown
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...
Showing results 1 to 25 of 41

 
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