Forum: Geothermal & Heat Pumps
01-06-23, 02:20 AM
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Replies: 1
Views: 52,781
Universal Air-Source Heat Pump Controller
I came across a remarkable, inexpensive device that can make building a Homemade Heat Pump much easier. In the "Manifesto" thread, we hit a bump because in our attempt to design a simple cheap...
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Forum: Geothermal & Heat Pumps
01-05-23, 02:31 PM
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Replies: 148
Views: 232,599
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Forum: Geothermal & Heat Pumps
07-27-22, 04:38 PM
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Replies: 1,943
Views: 5,531,649
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Forum: The Billiards Room
08-24-20, 01:18 AM
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Replies: 9
Views: 22,387
A Very Strong Parallel
I see a very strong parallel between this discussion, and many other discussions on EcoRenovator, regarding say, the building of a home, and what is the cheapest heat, etc., etc.
Many people begin...
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Forum: Geothermal & Heat Pumps
07-26-20, 12:10 AM
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Replies: 1,943
Views: 5,531,649
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Forum: Renovations & New Construction
06-18-20, 09:32 PM
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Replies: 6
Views: 24,247
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Forum: For Sale / Trade / Wanted / Web Finds
03-02-20, 01:40 PM
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Replies: 13
Views: 26,358
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Forum: Geothermal & Heat Pumps
03-01-20, 12:48 PM
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Replies: 9
Views: 12,803
Ground Source with no Ground?
It would help if you included a diagram of your proposal.
I may not understand correctly what you want to do.
I can say this, the great efficiency of a Ground Source Heat Pump is that it is...
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Forum: Geothermal & Heat Pumps
01-23-20, 06:35 PM
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Replies: 12
Views: 29,746
Thanks Fionn,
I have been meaning to follow...
Thanks Fionn,
I have been meaning to follow up on the Fujitsu install.
First, to answer your question, the Mini-Split works very well. It's not easy to verify the claim of efficiency with an...
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Forum: Geothermal & Heat Pumps
09-28-19, 10:11 AM
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Replies: 12
Views: 29,746
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Forum: Geothermal & Heat Pumps
09-25-19, 06:57 PM
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Replies: 12
Views: 29,746
AC_Hacker installs a new Mini-Split
I installed my original mini-split in around 2009, before I started my Homemade Heat Pump Manifesto project. The heat pump I installed then was a Sanyo KS0971 (+ C0971
+ CL0971). It had what I...
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Forum: Geothermal & Heat Pumps
06-08-19, 09:47 PM
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Replies: 1,943
Views: 5,531,649
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Forum: Other Improvements
02-10-19, 07:20 PM
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Replies: 15
Views: 42,670
S.H.: You may want to review the operational...
S.H.: You may want to review the operational theory of both HRVs and ERVs. I think you meant to say HRV, as the ERVs employ a semipermeable membrane that keeps the from losing moisture.
This is...
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Forum: Geothermal & Heat Pumps
01-11-19, 02:30 PM
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Replies: 4
Views: 21,632
[QUOTE=jeff5may;60453]
Here's a general...
[QUOTE=jeff5may;60453]
Here's a general sanyo error codes list:
Sanyo Air Conditioning Fault Codes (http://www.orionair.co.uk/Sanyo_fault_codes_air_conditioning.htm)
Thank for that, but my...
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Forum: Geothermal & Heat Pumps
01-11-19, 02:27 PM
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Replies: 4
Views: 21,632
Thanks Steve for your response,
I think my...
Thanks Steve for your response,
I think my problem may be different than the one you described:
* There may be a slow leak as you suggested, but I set up the unit very carefully seven years...
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Forum: Geothermal & Heat Pumps
01-10-19, 02:22 AM
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Replies: 4
Views: 21,632
Mini-Split, blinking red light....
Hello All,
My trusty Sanyo Mini-Split has blinking red indicator, and it is producing no heat. This may last for many hours, until I turn it off.
It is an intermittent condition, and If I turn...
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Forum: Geothermal & Heat Pumps
12-26-18, 07:28 PM
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Replies: 6
Views: 10,293
Your PVC Scheme...
Your tube-in-tube idea is curious.
I have read your post, and in trying to be the best devil's advocate possible, I came up with this:
* PVC is not usually used for GSHP systems because earth...
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Forum: Solar Heating
08-10-18, 11:03 AM
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Replies: 10
Views: 27,784
Don't forget the value of insulating the bath...
Don't forget the value of insulating the bath tub.
Most of the heat loss is through the sides & bottom.
You might find that by conserving the energy present in the hot water, you can have the...
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Forum: The Billiards Room
07-22-18, 10:12 AM
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Replies: 2
Views: 18,466
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Forum: Renovations & New Construction
07-09-18, 11:43 PM
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Replies: 5
Views: 14,175
The closer the PEX runs, the more efficient it...
The closer the PEX runs, the more efficient it will be.
Old School Amreican rule of thumb is 12" spacing; from my research, Northern Europeans favor closer spacings, with 6" not being unusual....
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Forum: Renovations & New Construction
04-20-18, 01:20 PM
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Replies: 8
Views: 20,540
SH,
Aren't you a certified engineer and an...
SH,
Aren't you a certified engineer and an energy professional with 28 years of professional experience under you belt?
Why are you asking a bunch of amateurs for advice?
Puzzled,
...
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Forum: Geothermal & Heat Pumps
03-04-18, 11:41 AM
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Replies: 22
Views: 50,400
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Forum: Geothermal & Heat Pumps
03-04-18, 11:25 AM
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Replies: 7
Views: 11,913
Hello Hugo!
In my opinion, using CO2 which...
Hello Hugo!
In my opinion, using CO2 which is environmentally friendly, and efficient, may not be a good choice for your project. CO2 has extremely high workng pressure, and requires very hard to...
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Forum: Geothermal & Heat Pumps
02-16-18, 03:16 AM
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Replies: 1,943
Views: 5,531,649
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Forum: Geothermal & Heat Pumps
01-21-18, 12:41 PM
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Replies: 1,943
Views: 5,531,649
Rebuilder,
It takes a dedicated person to...
Rebuilder,
It takes a dedicated person to read through the thread. Congratulations!
You are correct to minimize heat loss (minimize infiltration & maximize insulation). When you feel that you...
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