Forum: Geothermal & Heat Pumps
10-07-19, 12:53 PM
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Replies: 5
Views: 408
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Forum: Conservation
09-22-19, 01:14 PM
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Replies: 85
Views: 6,796
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Forum: Geothermal & Heat Pumps
09-17-19, 01:16 AM
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Replies: 4
Views: 478
All commercial grade pumps are rated for duty,...
All commercial grade pumps are rated for duty, power, rpm, load, and temperature range. Duty is the S rating. Check out this page:
https://www.engineeringtoolbox.com/amp/iec-duty-cucles-d_739.html
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Forum: Geothermal & Heat Pumps
09-14-19, 11:24 PM
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Replies: 4
Views: 478
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Forum: Appliances & Gadgets
09-14-19, 11:54 AM
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Replies: 11
Views: 838
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Forum: Appliances & Gadgets
09-12-19, 05:31 AM
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Replies: 11
Views: 838
I bought the unit on FB marketplace from the...
I bought the unit on FB marketplace from the original owner, who considered it broken, for under 100 bucks. It had been used daily for a family of five and never been opened. It had close to the same...
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Forum: Appliances & Gadgets
09-09-19, 12:26 AM
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Replies: 11
Views: 838
I had the next generation of Whirlpool duet...
I had the next generation of Whirlpool duet hybridcare dryer from the OP. They really are worth it. Drying time depends on the load and mode. As well as the normal dryer settings, the one I had had...
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Forum: Geothermal & Heat Pumps
09-03-19, 09:07 PM
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Replies: 24
Views: 4,830
What he said...
A lot of the variable...
What he said...
A lot of the variable capacity mini-split systems have brushless DC motors inside the pot. Most have 3 phase stators and a permanent magnet rotor. The control systems are all...
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Forum: Geothermal & Heat Pumps
08-29-19, 09:11 PM
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Replies: 20
Views: 1,059
For straight suspended pipes in the cavity, a...
For straight suspended pipes in the cavity, a boiler is the way to go. Without the heat spreaders, the pipe is the only radiating surface. The water temperature has to be very high, so it can induce...
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Forum: Geothermal & Heat Pumps
08-28-19, 11:18 AM
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Replies: 20
Views: 1,059
There are many different kinds of hydronic...
There are many different kinds of hydronic heating loops. Generally, the more efficient and dense the radiator, the lower the entering water temperature. For example, a thick, insulated concrete slab...
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Forum: Geothermal & Heat Pumps
08-27-19, 03:11 AM
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Replies: 20
Views: 1,059
Looks like it should be a good match for your...
Looks like it should be a good match for your purpose. The only thing I would be wary of is the 15 amp current carrying capacity for the compressor. A 4 ton unit might draw more than that when it's...
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Forum: Geothermal & Heat Pumps
08-26-19, 06:55 PM
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Replies: 20
Views: 1,059
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Forum: Geothermal & Heat Pumps
08-26-19, 04:47 PM
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Replies: 20
Views: 1,059
Ok so it's the blue heat exchanger that's...
Ok so it's the blue heat exchanger that's leaking? The unit looks like a modified minisplit outdoor unit. Highly hackable. The unit already has access valves, and from what I can tell, the...
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Forum: Geothermal & Heat Pumps
08-24-19, 01:51 AM
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Replies: 20
Views: 1,059
What kind of heat exchanger do you imagine to...
What kind of heat exchanger do you imagine to replace the broken one with? It's contained inside the unit? If the unit has an electronic control and you fiddle with the guts, it will rebel, and...
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Forum: Other Improvements
08-21-19, 04:29 AM
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Replies: 5
Views: 336
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Forum: Conservation
08-15-19, 11:22 AM
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Replies: 85
Views: 6,796
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Forum: Renovations & New Construction
08-12-19, 11:26 PM
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Replies: 59
Views: 8,681
I second that opinion. The main filter in a...
I second that opinion. The main filter in a central HVAC system is not meant to be a HEPA filter. They're there to keep the bugs and lint off of the heat exchangers and to cause as little pressure...
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Forum: Conservation
08-12-19, 11:06 PM
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Replies: 85
Views: 6,796
Well guys, I hate to kill your skepticism, but...
Well guys, I hate to kill your skepticism, but Ford, rivian, and Tesla are going to be having a 3 way tug of war on battery electric trucks. The corporation I work for just got budget approval for a...
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Forum: The Billiards Room
06-28-19, 08:50 AM
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Replies: 7
Views: 765
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Forum: Lighting
06-26-19, 10:32 PM
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Replies: 5
Views: 633
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Forum: Appliances & Gadgets
06-13-19, 12:57 PM
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Replies: 23
Views: 1,179
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...
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Forum: Appliances & Gadgets
05-27-19, 11:59 PM
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Replies: 23
Views: 1,179
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Forum: Geothermal & Heat Pumps
05-19-19, 01:41 AM
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Replies: 9
Views: 800
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Forum: Solar Heating
04-09-19, 11:32 PM
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Replies: 213
Views: 94,438
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Forum: Solar Heating
04-08-19, 07:55 PM
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Replies: 4
Views: 1,676
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....
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