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Posts Made By:
mrd
Forum:
Renovations & New Construction
12-04-13, 08:28 PM
Replies:
588
DIY Hydronic Floor Heating
Views:
517,055
Posted By
mrd
If the efficiency and cost of heat pumps and...
If the efficiency and cost of heat pumps and photovoltaic cells continue to improve, it may turn out different than expected.
Forum:
Renovations & New Construction
04-07-11, 04:16 AM
Replies:
588
DIY Hydronic Floor Heating
Views:
517,055
Posted By
mrd
Random thought: It might be useful to have a...
Random thought: It might be useful to have a liquid with a vastly lower heat capacity than water in solar installations. If you also had mechanisms to both easily mix and separate the two liquids,...
Forum:
Renovations & New Construction
02-27-11, 09:52 AM
Replies:
588
DIY Hydronic Floor Heating
Views:
517,055
Posted By
mrd
The units conversion is a little confusing. ...
The units conversion is a little confusing. Let's try it this way, with known values to test:
R = t/k
R: Thermal resistance
t: thickness
k: thermal conductivity coefficient
This...
Forum:
Renovations & New Construction
02-27-11, 01:15 AM
Replies:
588
DIY Hydronic Floor Heating
Views:
517,055
Posted By
mrd
I suppose the comparison would be valid, if you...
I suppose the comparison would be valid, if you were to replace all of the soil around and beneath the basement with XPS.. although I'm not sure at what point you would stop replacing the soil with...
Forum:
Renovations & New Construction
02-25-11, 08:24 AM
Replies:
588
DIY Hydronic Floor Heating
Views:
517,055
Posted By
mrd
I've heard this is heavily dependent on ground...
I've heard this is heavily dependent on ground water. If there isn't ground water near the soil beneath the slab, then the earth acts as a huge insulation bank. Earth has a low R-value, something...
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