Forum: Geothermal & Heat Pumps
12-12-20, 07:17 PM
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Replies: 3
Views: 419
You can definitely look into thermal storage...
You can definitely look into thermal storage using "IBC totes". Basically, you'll add copper tubing inside the tanks to act as the heat exchanger and then fill the tanks with water to use as the...
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Forum: Lawn and Garden
11-01-20, 08:18 AM
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Replies: 10
Views: 805
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Forum: Solar Power
10-29-20, 09:34 PM
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Replies: 15
Views: 901
Might want to take a look at server power...
Might want to take a look at server power supplies, commonly available into the low kW range. Modifying one to have MPPT is going to be tricky even if you're advanced with electronics.
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Forum: Geothermal & Heat Pumps
09-19-20, 12:21 AM
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Replies: 4
Views: 1,391
The mini splits with that feature are quite...
The mini splits with that feature are quite sophisticated, with a low resolution thermal IR sensor array, high resolution near IR sensor array, and an embedded Linux processor of similar compute...
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Forum: The Billiards Room
09-05-20, 03:06 PM
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Replies: 9
Views: 1,060
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Forum: Conservation
09-04-20, 09:11 PM
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Replies: 189
Views: 37,383
Good quality batteries are rated to last...
Good quality batteries are rated to last thousands of complete cycles nowadays, even more for partial cycles. If you don't use them, they'll eventually die of old age.
Selling to the grid is not a...
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Forum: Conservation
08-28-20, 09:59 AM
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Replies: 189
Views: 37,383
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Forum: Appliances & Gadgets
08-10-20, 10:19 PM
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Replies: 8
Views: 1,289
Definitely time for a better soldering iron....
Definitely time for a better soldering iron. Something like the TS-100 will handle 12AWG wires with ease. It uses integrated heater cartridges with better coupling than the older irons that merely...
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Forum: Geothermal & Heat Pumps
07-30-20, 08:02 PM
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Replies: 21
Views: 3,156
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Forum: Conservation
07-30-20, 07:36 PM
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Replies: 8
Views: 1,056
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Forum: Conservation
07-22-20, 10:18 PM
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Replies: 189
Views: 37,383
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Forum: Geothermal & Heat Pumps
07-22-20, 09:30 AM
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Replies: 18
Views: 2,715
The first one will also do surface mount reflow...
The first one will also do surface mount reflow (an advanced process), but I'm not sure about the overall build quality. Might be worth considering if you're planning to do more advanced electronics...
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Forum: Geothermal & Heat Pumps
07-20-20, 09:16 PM
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Replies: 21
Views: 3,156
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Forum: Conservation
07-19-20, 11:43 AM
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Replies: 22
Views: 1,853
You use the contactor (a very heavy duty relay)...
You use the contactor (a very heavy duty relay) to switch the water heater, then you use a smart plug to switch the contactor. Not having an outlet nearby makes things slightly more complex, really...
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Forum: Geothermal & Heat Pumps
07-14-20, 11:50 PM
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Replies: 21
Views: 3,156
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Forum: Conservation
07-13-20, 09:04 AM
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Replies: 22
Views: 1,853
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Forum: Geothermal & Heat Pumps
07-06-20, 10:17 PM
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Replies: 21
Views: 3,156
It takes energy to move batteries as well,...
It takes energy to move batteries as well, although I suppose that can be largely offset with regenerative braking. It's down to the overall cost vs benefit of a large battery pack vs a smaller...
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Forum: Geothermal & Heat Pumps
07-06-20, 08:54 AM
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Replies: 21
Views: 3,156
The thermal storage can be "recharged" with an...
The thermal storage can be "recharged" with an onboard heat pump. Most likely one based on a 5000BTU/hr window A/C since it's hard to go smaller with decent efficiency and still keep the cost of...
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Forum: Geothermal & Heat Pumps
07-04-20, 02:10 PM
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Replies: 21
Views: 3,156
1kg of ice will absorb 333kJ of energy. 1kg of...
1kg of ice will absorb 333kJ of energy. 1kg of the best lithium batteries will store on the order of 800kJ of energy, but cheaper ones will store considerably less. Then there's the efficiency of the...
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Forum: Geothermal & Heat Pumps
07-01-20, 08:57 PM
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Replies: 21
Views: 3,156
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Forum: Geothermal & Heat Pumps
06-29-20, 10:33 PM
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Replies: 15
Views: 2,034
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Forum: Geothermal & Heat Pumps
06-24-20, 09:49 AM
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Replies: 18
Views: 2,715
Go with good quality (e.g. Kester) 63/37 leaded...
Go with good quality (e.g. Kester) 63/37 leaded solder. Lead free is harder to work with so I do not recommend it for a beginner. For the iron, go for the TS100 if you want one that's portable or a...
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Forum: Solar Power
06-22-20, 12:48 AM
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Replies: 24
Views: 5,941
Working on the wireless sensor - managed to get...
Working on the wireless sensor - managed to get it outputting a nice, low jitter signal. For a test, I had it transmitting music over the power line and the quality is surprisingly good - not HD but...
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Forum: Renovations & New Construction
06-10-20, 12:24 AM
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Replies: 2
Views: 873
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Forum: Geothermal & Heat Pumps
06-01-20, 12:02 AM
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Replies: 4
Views: 1,391
Interesting new take on a window A/C
https://www.youtube.com/watch?v=f2NmgOvIv2M
About the only features that seem to be missing are heat pump operation and infrared tracking to automatically direct airflow where needed.
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