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Search: Posts Made By: jeff5may
Forum: Solar Power Yesterday, 09:24 AM
Replies: 1
Views: 65
Posted By CrankyDoug
Perhaps I am missing something. You have solar...

Perhaps I am missing something. You have solar panels facing in two directions, mounted to a single pole such that a 5mph wind will result in rotational oscillation from vortex shedding. I estimate...
Forum: Geothermal & Heat Pumps 05-04-20, 03:50 PM
Replies: 12
Views: 2,431
Posted By Mikesolar
For my test rig, I sized a flat plate heat...

For my test rig, I sized a flat plate heat exchanger to the output of the HP and I have a pump with a flow meter so I can get proper readings. I am using the indoor coils electronics but changing the...
Forum: Solar Heating 04-18-20, 09:51 AM
Replies: 27
Views: 3,135
Posted By menaus2
Absorber fins and painting are done! I did my...

Absorber fins and painting are done! I did my best to make everything an equal length, but I'm sure each run will be off a bit.

Does anyone have an idea how much difference in flow there might be...
Forum: Solar Heating 04-11-20, 10:42 AM
Replies: 27
Views: 3,135
Posted By menaus2
Absorber fin installation continues! A little...

Absorber fin installation continues! A little over halfway done. I've spray painted completed sections to get an idea what it'll look like finished (as well as a motivation boost!) Straightening out...
Forum: Solar Heating 04-04-20, 10:19 AM
Replies: 27
Views: 3,135
Posted By menaus2
Construction continues into the slow tedious...

Construction continues into the slow tedious phase of collector pipe and aluminum absorbers. For the back of the absorber I stapled up 3" wide strips of aluminum coilstock. Not sure on the thickness,...
Forum: Solar Heating 03-28-20, 09:42 AM
Replies: 27
Views: 3,135
Posted By menaus2
Had nice weather yesterday before rain moved in,...

Had nice weather yesterday before rain moved in, so prioritized making sure the OSB was protected enough since it shouldn't get wet & I don't have plastic laying around. Sealed up all the seams with...
Forum: Solar Heating 03-26-20, 10:28 PM
Replies: 27
Views: 3,135
Posted By menaus2
The world slows down, but construction continues!...

The world slows down, but construction continues! Framing has been completed. The shed wall isn't exactly plumb, but it's level. Good enough! I siliconed (black silicone) the wood to keep moisture...
Forum: Conservation 02-06-20, 02:05 PM
Replies: 27
Views: 4,931
Posted By pinballlooking
Those farmers need to have the right to repair...

Those farmers need to have the right to repair their tractors.
Just like the did for cars a few years ago.
Forum: Appliances & Gadgets 01-26-20, 09:35 PM
Replies: 3
Views: 829
Posted By where2
For others who may someday need this knowledge: ...

For others who may someday need this knowledge:

Using NiHaoMike's suggestion as a starting point, I was able to determine that JST connectors come in a variety of pin spacings: 1.0mm, 1.25mm,...
Forum: Appliances & Gadgets 01-25-20, 10:29 PM
Replies: 3
Views: 829
Posted By NiHaoMike
I suggest asking EEVblog. It looks like a JST SH...

I suggest asking EEVblog. It looks like a JST SH but it's important to examine the connector carefully since I have seen variants with subtle differences specifically to prevent cross connections.
Forum: Conservation 01-25-20, 08:47 AM
Replies: 27
Views: 4,931
Posted By jjackstone
It's hard for governments to give up oil and gas...

It's hard for governments to give up oil and gas because of the revenue streams they provide not just in terms of for the country itself, but also padding their own pocket books. I've read that the...
Forum: Tools 01-13-20, 10:40 AM
Replies: 21
Views: 1,670
Posted By pinballlooking
Carburetors have gotten so cheap. I have been...

Carburetors have gotten so cheap. I have been just replacing them. I have bought over 6 in the last year.
The last couple I bought were cheaper than the rebuild kit.
Forum: Conservation 01-12-20, 04:16 AM
Replies: 3
Views: 917
Posted By oil pan 4
Not really. Just get a mini split. A good mini...

Not really. Just get a mini split. A good mini split is 2 to 3 times more efficient than a window unit, not counting the window air leak the window unit causes.
Forum: Geothermal & Heat Pumps 01-08-20, 12:58 PM
Replies: 8
Views: 928
Posted By RB855
Very common issue here in the south. Mildew and...

Very common issue here in the south. Mildew and such grows in the coil and the heat cooks the stink out. Regular cleaning of the evaporator usually curbs it, but we use a product that's literally...
Forum: Geothermal & Heat Pumps 12-30-19, 06:20 PM
Replies: 18
Views: 1,668
Posted By JRMichler
Your guesses for sizes of heat pumps are about...

Your guesses for sizes of heat pumps are about right for a poorly insulated house with reasonable (less than 10%) window area.

A well insulated house would have at least R60 ceiling, R30 walls,...
Forum: The Billiards Room 12-11-19, 10:14 AM
Replies: 20
Views: 3,692
Posted By pinballlooking
My boys both really like their 99/96 cars. They...

My boys both really like their 99/96 cars. They go to a private school and there are a lot of BMW new cars trucks…

But they both think it is nice to have a non cookie cutter cars. I see how their...
Forum: Geothermal & Heat Pumps 11-20-19, 11:28 PM
Replies: 5
Views: 1,242
Posted By MN Renovator
OP, If you are looking to use R290 because you...

OP, If you are looking to use R290 because you think you can't buy the R410A, that's not true. You can buy it almost as easily as buying a can of R134A for a car, just from a different place than...
Forum: Lighting 10-08-19, 09:38 PM
Replies: 9
Views: 1,532
Posted By Elcam84
Well I had great plans but everything got in the...

Well I had great plans but everything got in the way.... This summer was extremely hot as in we had our last 101* day on the 6th of october. Yes 2 days ago... Went from 101* in the afternoon then the...
Forum: Appliances & Gadgets 09-12-19, 10:58 AM
Replies: 11
Views: 2,086
Posted By oil pan 4
My local appliance repair guy says he loves...

My local appliance repair guy says he loves heatpump dryers.
He gets lots of service calls and 99% of them are lint build up. Easy $100.
Forum: Geothermal & Heat Pumps 06-10-19, 11:07 PM
Replies: 24
Views: 6,769
Posted By Xringer
New link: ...

New link: https://www.aliexpress.com/item/32956162411.html

They are making some interesting pcbs these days.. Inverter support!

Universal DC Inverter control system for split air conditioner...
Forum: Geothermal & Heat Pumps 05-14-19, 07:04 AM
Replies: 218
Views: 38,932
Posted By Fordguy64
http://earthlinked.com/technical-manuals/technical...

http://earthlinked.com/technical-manuals/technical-manuals-download/?c=3b4dcc438662196d4060f98b6ef040327c26298454aded767523b93eaa733e32118668d5566b2d9cb09e4b234dd66ca5c800

found this interesting...
Forum: Solar Heating 03-30-19, 12:13 PM
Replies: 214
Views: 102,342
Posted By Daox
Alright, last night I got all of my bits for this...

Alright, last night I got all of my bits for this project. This new version virtually replaces every part of the system minus the spring loaded damper at the bottom of the chimney.


I started...
Forum: Geothermal & Heat Pumps 03-25-19, 02:45 PM
Replies: 3
Views: 976
Posted By MN Renovator
Intermittent connection or it might need voltage...

Intermittent connection or it might need voltage to bridge a gap and start an arc. At lease you've figured out which side of the branch is causing the dead short allowing you to leave it disconnected...
Forum: Appliances & Gadgets 03-08-19, 10:41 PM
Replies: 17
Views: 3,569
Posted By Semipro
These numbers seem to refer to gas water heaters...

These numbers seem to refer to gas water heaters where it would make sense that heat transfer rates would result in more waste up the flue. Not so with an electric resistance heater. Although an...
Forum: Geothermal & Heat Pumps 01-16-19, 12:31 PM
Replies: 14
Views: 3,586
Posted By pavel
few images...

few images, just for case the link above does not work
Showing results 1 to 25 of 359

 
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