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Search: Posts Made By: jeff5may
Forum: Appliances & Gadgets 06-13-19, 11:57 AM
Replies: 21
Views: 385
Posted By jeff5may
Well now... Main question is how much water...

Well now... Main question is how much water heater do you want? If you eventually buy another water heater, get one that has a warranty that will outlive you. Sounds like you originally found a...
Forum: Appliances & Gadgets 05-27-19, 10:59 PM
Replies: 21
Views: 385
Posted By jeff5may
On those impossible threaded fittings, I use both...

On those impossible threaded fittings, I use both Teflon tape and pipe dope. Chase the threads to make sure they are clean and the right shape slash taper. Wrap the male fitting clockwise and then...
Forum: Geothermal & Heat Pumps 05-19-19, 12:41 AM
Replies: 9
Views: 309
Posted By jeff5may
That's a 2 ton 10 seer unit. Not super efficient...

That's a 2 ton 10 seer unit. Not super efficient by today's standards. Not much better than a window AC unit. But, I'm assuming it was donated or a super bargain. I myself would add a reversing...
Forum: Solar Heating 04-09-19, 10:32 PM
Replies: 213
Views: 89,216
Posted By jeff5may
Your thermostat looks like the type I had in the...

Your thermostat looks like the type I had in the greenhouse in the past. They're super reliable, but not so precise. Mine used to drift around 5 degrees total, depending on it's mood. It outlasted...
Forum: Solar Heating 04-08-19, 06:55 PM
Replies: 4
Views: 441
Posted By jeff5may
Option 3. If you have the right conditions you...

Option 3. If you have the right conditions you could set up a thermosiphon. This would yield the most heat per sun. If everything is not perfect, you'll have to run a pump and a control of some kind....
Forum: Solar Heating 04-01-19, 10:30 PM
Replies: 213
Views: 89,216
Posted By jeff5may
For these kinds of projects, I have found the...

For these kinds of projects, I have found the perfect blower motor fan thingy. They're available everyday everywhere for next to nothing. Drum roll please...

Look on your local yard sale...
Forum: Geothermal & Heat Pumps 03-25-19, 10:23 PM
Replies: 3
Views: 260
Posted By jeff5may
I agree, AC isn't as well behaved as low voltage...

I agree, AC isn't as well behaved as low voltage DC. At least you seem to have a line that's staying how is. Much easier to get rid of that way. It all depends on how the defect came to be as far as...
Forum: Other Improvements 03-20-19, 12:52 AM
Replies: 4
Views: 184
Posted By jeff5may
Should work well, as wood chips are cellulose and...

Should work well, as wood chips are cellulose and should trap lots of air to help insulate. The only thing I can think to recommend is to treat the chips to prevent fire hazard and insect...
Forum: Appliances & Gadgets 03-20-19, 12:37 AM
Replies: 17
Views: 1,686
Posted By jeff5may
Ok so there are free energy geniuses here. I have...

Ok so there are free energy geniuses here. I have a simple one:

You know that when electric water heaters are new, they're almost perfectly silent. As they age, they start popping, fizzling, and...
Forum: Geothermal & Heat Pumps 02-28-19, 02:46 AM
Replies: 7
Views: 1,446
Posted By jeff5may
How's it going with the saltwater (ahem, sodium...

How's it going with the saltwater (ahem, sodium ion) battery storage? Not a bad concept, but those lithium ion setups are so small and less expensive in comparison. If you're trying to use your solar...
Forum: Solar Heating 02-26-19, 10:51 PM
Replies: 41
Views: 9,826
Posted By jeff5may
https://ecorenovator.org/forum/showthread.php?t=48...

https://ecorenovator.org/forum/showthread.php?t=484
Forum: Other Improvements 02-26-19, 12:27 AM
Replies: 15
Views: 737
Posted By jeff5may
Haha, I sniff those corks like crazy, just don't...

Haha, I sniff those corks like crazy, just don't go out in the garage. Priceless.

I was saying to run a trial with something cheap and of known BTU value, so you can get an idea of what you really...
Forum: Other Improvements 02-24-19, 07:59 PM
Replies: 15
Views: 737
Posted By jeff5may
Good point here. The big question is how are you...

Good point here. The big question is how are you heating and cooling the house now? Lots of ifs and not much specific information given besides local climate conditions. If I had low cash and minimal...
Forum: Other Improvements 02-11-19, 10:52 PM
Replies: 15
Views: 737
Posted By jeff5may
There seems to be a misconception about relative...

There seems to be a misconception about relative humidity here. Your 35 degree saturated outdoor air contains less than 30% relative humidity at 68 degrees. It's all about dew point.
Forum: Conservation 01-17-19, 02:03 AM
Replies: 4
Views: 363
Posted By jeff5may
What Mike said. The actual heat transfer depends...

What Mike said. The actual heat transfer depends on a lot, but since you have forced air heating, you're not going to be wasting power. Heat rises, so your forced air will stratify above what comes...
Forum: Conservation 01-10-19, 09:48 AM
Replies: 13
Views: 1,454
Posted By jeff5may
Ok so if you're going to get an energy audit, do...

Ok so if you're going to get an energy audit, do it before you start improving the place. Gather some past utility bill data and get a baseline "before" survey completed. That way you can quantify...
Forum: Geothermal & Heat Pumps 01-10-19, 08:22 AM
Replies: 6
Views: 462
Posted By jeff5may
In the wide scope of the entire system, your...

In the wide scope of the entire system, your theory concerning ground loop pumping losses holds up pretty good compared to a pump and dump system. Since the brine solution is going in a circle, all...
Forum: Geothermal & Heat Pumps 01-10-19, 06:43 AM
Replies: 4
Views: 350
Posted By jeff5may
What ever happened to the other one? I basically...

What ever happened to the other one? I basically threw in the towel on the general purpose control. Too many special needs and lack of support to help program and standardize.

Here's a general...
Forum: Geothermal & Heat Pumps 01-07-19, 10:55 AM
Replies: 1
Views: 406
Posted By jeff5may
There's is no official spec for water content in...

There's is no official spec for water content in fuel grade propane, only hd5 and commercial or hd10 grades. HD5 grade is for vehicles and has a minimum of 90 percent propane, and maximum of 5...
Forum: Tools 12-31-18, 04:42 PM
Replies: 8
Views: 834
Posted By jeff5may
I also recommend what pinball did for an all...

I also recommend what pinball did for an all purpose bench rig. I have a couple of the old school wtcps ones as well. They use a tc201 pencil and pt series tips. Main difference is that the one...
Forum: Geothermal & Heat Pumps 12-24-18, 12:35 PM
Replies: 1
Views: 354
Posted By jeff5may
Looks like adapters to me. Kind of like the...

Looks like adapters to me. Kind of like the things you use on an old vehicle to get r134a stuff to fit.
Forum: Geothermal & Heat Pumps 12-24-18, 12:29 PM
Replies: 6
Views: 462
Posted By jeff5may
Ok, so there are a few things to consider here. ...

Ok, so there are a few things to consider here.

The first is pressure drop. With your rig, each pipe will have the drop of half of the total length worth of 2 inch pipe. I'm guessing 9 feet worth...
Forum: Introductions 12-22-18, 08:09 PM
Replies: 1
Hi
Views: 383
Posted By jeff5may
Welcome to the forums!

Welcome to the forums!
Forum: Geothermal & Heat Pumps 12-01-18, 08:10 AM
Replies: 83
Views: 5,626
Posted By jeff5may
I wouldn't be worrying about heating capacity....

I wouldn't be worrying about heating capacity. From the spreadsheet, it looks like the heat pump can keep up with the load down to -8 degrees. As you said, the ground is 5 degrees warmer than the...
Forum: Solar Power 11-24-18, 11:42 AM
Replies: 17
Views: 1,207
Posted By jeff5may
Depends on the design. A lot of igbt stuff uses...

Depends on the design. A lot of igbt stuff uses the igbt connected like a relay. A bipolar drive is inherently less noisy than a mosfet due to the lower capacitance and the pn junction lag, so lots...
Showing results 1 to 25 of 500

 
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