Forum: Geothermal & Heat Pumps
06-25-14, 04:29 PM
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Replies: 293
Views: 108,430
I started a thread over in Solar Heating
...
I started a thread over in Solar Heating
http://ecorenovator.org/forum/solar-heating/3747-buried-solar-tank-heat-pump-insulate.html
a couple of websites are linked, that combine Solar, HP,...
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Forum: Geothermal & Heat Pumps
06-11-14, 07:10 PM
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Replies: 293
Views: 108,430
Found more info:
Heating Help...
Found more info:
Heating Help (http://www.heatinghelp.com/forum-thread/129339/John-Siegenthalers-simplified-Combisystem-for-new-construction)
"Domestic water is heated instantaneously as it...
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Forum: Geothermal & Heat Pumps
06-04-14, 07:59 PM
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Replies: 293
Views: 108,430
The Taco Delta-T pump on the tank side of HX...
The Taco Delta-T pump on the tank side of HX would work.
This should work well for recirculation to get almost instant hot water at fixtures.
There will be a small 10W El-Sid 24vdc pump at each...
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Forum: Geothermal & Heat Pumps
06-04-14, 03:02 PM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
06-04-14, 10:10 AM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
06-04-14, 09:17 AM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
06-03-14, 02:45 PM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
06-03-14, 11:16 AM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
05-25-14, 07:31 PM
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Replies: 293
Views: 108,430
It will be 2gpm minimum in each loop, possibly...
It will be 2gpm minimum in each loop, possibly 3gpm in each of the 2 loops, sooo 4-6gpm total.
I plan to put 2 of these 53W pumps in series on the evaporator and 2 in series on the condenser. I...
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Forum: Geothermal & Heat Pumps
05-25-14, 06:48 PM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
05-25-14, 05:49 PM
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Replies: 293
Views: 108,430
Mikesolar, on page 12 your:
"3.65gpm with a...
Mikesolar, on page 12 your:
"3.65gpm with a 20F dT is 36,500btu x 2 loops is 73Mbtu. I don't know where 180Mbtu comes from"
We are looking at this wrong, I want the delta-T between the solar...
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Forum: Geothermal & Heat Pumps
03-25-14, 09:08 PM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
03-25-14, 08:28 PM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
03-25-14, 08:20 PM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
03-25-14, 03:30 PM
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Replies: 293
Views: 108,430
Parts shipment from Surplus City came.
...
Parts shipment from Surplus City came.
Thanks to their brief incomplete description, looks like I bought a TXV that is not adjustable! Great
Looks like PID controlled Power resistor is needed....
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Forum: Geothermal & Heat Pumps
03-24-14, 01:40 PM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
03-23-14, 09:14 PM
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Replies: 293
Views: 108,430
jeff5may, thanks so much.
In post #247 on...
jeff5may, thanks so much.
In post #247 on previous page:
"I have decided that I can keep the Rheem tank at 120*F to improve Eff. of heat pump."
I have been thinking of a simple servo system: I...
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Forum: Geothermal & Heat Pumps
03-23-14, 05:53 PM
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Replies: 293
Views: 108,430
SLHX Ebay $49.25 delivered.
This one is for...
SLHX Ebay $49.25 delivered.
This one is for refrigerant both sides.
Thanks a bunch for this:
"Condensing temp follows condensing pressure. Condensing pressure follows many things, mainly water...
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Forum: Geothermal & Heat Pumps
03-23-14, 03:25 PM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
03-23-14, 02:38 PM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
03-23-14, 01:51 PM
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Replies: 293
Views: 108,430
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Forum: Geothermal & Heat Pumps
03-23-14, 01:08 PM
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Replies: 293
Views: 108,430
My Thermal Accumulator is a Rheem ST120...
My Thermal Accumulator is a Rheem ST120 commercial storage tank, no internal HX.
As I described before there is a large GEA HX (BTW, they have a great online simulator)
that is used...
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Forum: Geothermal & Heat Pumps
03-23-14, 12:17 PM
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Replies: 293
Views: 108,430
"At 50C (122F) condensing and 10C (50F)...
"At 50C (122F) condensing and 10C (50F) evaporating, expect about 3.78 COP (12.9 EER/14.7 SEER) and 64C (147F) discharge temperature."
So I'm interested in is system throughput: can this be...
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Forum: Geothermal & Heat Pumps
03-22-14, 11:59 PM
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Replies: 293
Views: 108,430
Yes, I'm on well.
There is no dishwashing...
Yes, I'm on well.
There is no dishwashing mode on my setup.
"Discharge temperature is the temperature of the compressor outlet."
Do you mean temperature of the condenser water outlet?
"At...
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Forum: Geothermal & Heat Pumps
03-22-14, 05:34 PM
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Replies: 293
Views: 108,430
NiHaoMike,
Thanks for running simulations. ...
NiHaoMike,
Thanks for running simulations.
Define "discharge temperature" is that water temp. leaving condenser HX?
You must have had to estimate HX Eff.
I bought the SLHX & am going to use...
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