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Search took 0.01 seconds. Search: Posts Made By: jeff5may
Forum: Solar Heating 02-01-21, 05:31 AM
Replies: 25
Views: 2,906
Posted By jeff5may
IamIan, Take a gander on this discussion group....

IamIan,
Take a gander on this discussion group. Geothermal forum. Probably half a dozen build threads where members have rolled their own. My favorites are Randy and Jake (randen, memphis). Randy...
Forum: Solar Heating 01-30-21, 05:52 PM
Replies: 25
Views: 2,906
Posted By jeff5may
Better hurry up before the dollar implodes. Your...

Better hurry up before the dollar implodes. Your retirement account might need another zero on it before you can retire. Mr president is already on with the rhetoric: more stimulus, more spending,...
Forum: Geothermal & Heat Pumps 01-18-21, 03:45 PM
Replies: 14
Views: 5,167
Posted By jeff5may
Ok so I decided to post in this thread as not to...

Ok so I decided to post in this thread as not to pollute the other, newer version thread.

I've recently been tinkering with more phase change monsters and have decided to have another go at the...
Forum: Solar Heating 01-10-21, 07:26 PM
Replies: 14
Views: 1,056
Posted By jeff5may
Main idea is: if it's working, play with it until...

Main idea is: if it's working, play with it until you make it short cycle. Then dial it back until it doesn't. Pick a sweet spot and drive it like you stole it.
Forum: Solar Heating 01-06-21, 02:05 PM
Replies: 219
Views: 115,928
Posted By jeff5may
The spring loaded check valves work pretty well....

The spring loaded check valves work pretty well. The ones without a rubber seal are cheaper than the ones with the seal. Easy peasy breezy. Any orientation installation for quick and simple.
Forum: Solar Heating 12-31-20, 10:47 PM
Replies: 6
Views: 783
Posted By jeff5may
Just about all the systems that I've seen that...

Just about all the systems that I've seen that actually work well use the second method you describe. Small e-tube collector loop volume, exchanging heat into a larger tank, usually insulated well.
Forum: Geothermal & Heat Pumps 12-30-20, 01:55 PM
Replies: 3
Views: 712
Posted By jeff5may
So with an understanding of the overall heat pump...

So with an understanding of the overall heat pump refrigeration cycle, I will focus on the geothermal/ground source end of the system.

With a ground loop based system, the two main things that...
Forum: Geothermal & Heat Pumps 12-30-20, 11:24 AM
Replies: 3
Views: 712
Posted By jeff5may
Ok so a little background on the phase change...

Ok so a little background on the phase change heating and cooling system first.

Any air conditioning or heating system that relies on the phase change system moves heat via mass flow of...
Forum: Solar Heating 09-21-20, 12:33 PM
Replies: 13
Views: 1,729
Posted By jeff5may
Drain back is not generally recommended with...

Drain back is not generally recommended with evacuated tube collectors. Mainly two reasons:
First, stagnation temperature can literally melt down gasket and sealing materials. When the sun shines...
Forum: Renovations & New Construction 09-08-20, 03:01 PM
Replies: 8
Views: 3,390
Posted By jeff5may
My guess is Bob diy'd a solution 3 years ago.

My guess is Bob diy'd a solution 3 years ago.
Forum: Geothermal & Heat Pumps 08-16-20, 09:11 AM
Replies: 18
Views: 3,906
Posted By jeff5may
Yes, the spot with the black circle is a good...

Yes, the spot with the black circle is a good place to attach one wire of the fuse holder. Just apply the heat to the terminal until it melts, it probably has unleaded solder in the board. The...
Forum: Conservation 07-31-20, 08:10 AM
Replies: 8
Views: 1,862
Posted By jeff5may
Oh no, we're talking about refrigerators with...

Oh no, we're talking about refrigerators with compartment cams (so you can check at the grocery store if you have any cold beer left), with the ability to assemble shopping lists for you...
Forum: Geothermal & Heat Pumps 07-23-20, 01:22 AM
Replies: 18
Views: 3,906
Posted By jeff5may
For what it's worth, I have a gaggle of teensy...

For what it's worth, I have a gaggle of teensy soldering stuff for electronics. My go to is the Weller. All the super pro somewhat expert peanuts have their gadgets of the day, but guess what? Weller...
Forum: Geothermal & Heat Pumps 06-30-20, 02:05 AM
Replies: 15
Views: 3,089
Posted By jeff5may
Yes, ventilation will help carry away waste heat....

Yes, ventilation will help carry away waste heat. Not a huge amount, but yes it will be helpful.

The most effective thing you can do to increase cooling is to mist the outdoor unit heat exchanger....
Forum: Geothermal & Heat Pumps 06-24-20, 08:30 AM
Replies: 18
Views: 3,906
Posted By jeff5may
If you didn't submit registration paperwork, your...

If you didn't submit registration paperwork, your warranty is moot. It had to have been given a thumbs up by a licensed HVAC tech and submitted within 90 days. The approving tech is supposed to put a...
Forum: For Sale / Trade / Wanted / Web Finds 06-24-20, 08:08 AM
Replies: 2
Views: 1,700
Posted By jeff5may
https://sunelec.com/shop/solar-panels/used-70-watt...

https://sunelec.com/shop/solar-panels/used-70-watt-thin-film-modules/

And here's the panel specs:

https://www.enfsolar.com/pv/panel-datasheet/Thin-film/1018
Forum: Solar Heating 06-13-20, 11:16 PM
Replies: 14
Views: 2,970
Posted By jeff5may
Ok so there are a few ways you can go about...

Ok so there are a few ways you can go about refurbishing the panels. Your ultimate decision will be determined by the purpose and ease of maintenance of the system.

Choice number one: never...
Forum: Geothermal & Heat Pumps 06-07-20, 10:43 AM
Replies: 48
Views: 10,835
Posted By jeff5may
Not trying to resurrect a zombie thread here, but...

Not trying to resurrect a zombie thread here, but I happened upon a YouTuber who has built his own desiccant air conditioner. If this link dies, search for Tech ingredients solar air conditioner.
...
Forum: Solar Heating 05-25-20, 06:38 PM
Replies: 74
Views: 32,081
Posted By jeff5may
The material you use for heat transfer makes a...

The material you use for heat transfer makes a massive difference. Copper pipe is the king when you consider raw heat transfer and time lag versus dollars . Pex is about 6 times worse per surface...
Forum: Geothermal & Heat Pumps 05-20-20, 07:18 PM
Replies: 18
Views: 3,906
Posted By jeff5may
Here's the web page for your unit: ...

Here's the web page for your unit:

http://airconint.com/wiki/index.php?title=Blue_Series_3

It looks like the power feed for the outdoor fan motor got burnt. I would definitely check the...
Forum: Other Improvements 05-09-20, 11:13 AM
Replies: 3
Views: 1,732
Posted By jeff5may
Just got a PM for more information on the...

Just got a PM for more information on the subject, so here's my tidbit for the curious:

The older washers had a stator with 42 poles in them. Factory wired as 3 phase star, 14 poles per phase. Max...
Forum: Other Improvements 04-26-20, 07:18 PM
Replies: 3
Views: 1,732
Posted By jeff5may
Yay, it's a Whirlpool Cabrio / Maytag bravos HE...

Yay, it's a Whirlpool Cabrio / Maytag bravos HE top loader in the USA. I service and trade washers and dryers in my spare time, and I love those units. A major cause of failure with those things is...
Forum: Geothermal & Heat Pumps 02-08-20, 07:50 PM
Replies: 10
Views: 2,592
Posted By jeff5may
Ok so the dirt cheap twisty knob window units are...

Ok so the dirt cheap twisty knob window units are all over the place because they don't work too well. Nearly all of them have the lowest efficiency ratings ever. For your goals they don't have...
Forum: Geothermal & Heat Pumps 01-18-20, 04:10 PM
Replies: 7
Views: 1,795
Posted By jeff5may
Ok so the refrigerant temperature and pressure...

Ok so the refrigerant temperature and pressure will follow the heat exchanger temperatures. Obviously you don't have enough indoor heat exchanger or heat store or both. Adding more charge to try to...
Forum: Conservation 09-22-19, 12:14 PM
Replies: 95
Views: 18,321
Posted By jeff5may
Just had another communication meeting with the...

Just had another communication meeting with the product development guys at Ford. They're really going to bring it, starting next year. The team is in the " anticipation building" phase now: not...
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