Forum: Renovations & New Construction
03-31-22, 04:19 PM
|
Replies: 10
Views: 17,268
Not quite correct!
The reflective surface of a...
Not quite correct!
The reflective surface of a "radiant barrier" must be facing the source of the radiation, in a vacuum or air. If the reflective surface is facing the radiant sink (away from the...
|
Forum: Renovations & New Construction
03-30-22, 01:28 PM
|
Replies: 10
Views: 17,268
Radiant energy is transmitted from a hot body...
Radiant energy is transmitted from a hot body (surface) to a colder body (surface) through a vacuum or air (not solid or liquid materials) under specific thermodynamic rules and conditions. If the...
|
Forum: Solar Power
12-11-18, 05:19 PM
|
Replies: 51
Views: 48,561
|
Forum: Geothermal & Heat Pumps
12-23-17, 09:49 AM
|
Replies: 23
Views: 15,253
|
Forum: Conservation
11-20-17, 02:44 PM
|
Replies: 6
Views: 6,863
BS!
You forget about or don't know how bulk...
BS!
You forget about or don't know how bulk insulation works. It's sole purpose is to prevent air movement in the insulated space thus eliminating convection heat loss. All bulk insulation...
|
Forum: Geothermal & Heat Pumps
08-07-17, 11:41 PM
|
Replies: 5
Views: 4,174
|
Forum: Geothermal & Heat Pumps
10-06-14, 09:28 AM
|
Replies: 51
Views: 37,411
|
Forum: Geothermal & Heat Pumps
02-21-14, 09:27 AM
|
Replies: 15
Views: 9,914
|
Forum: Renovations & New Construction
12-15-13, 10:57 PM
|
Replies: 588
Views: 545,468
"bubble crap"
I agree!
Look at the emissivity of the low temp 80 deg. subfloor radiating downward to its receptors, looking at either a properly placed and transparent bubble and aluminized reflective film or,...
|
Forum: Renovations & New Construction
12-10-13, 12:14 AM
|
Replies: 588
Views: 545,468
Ah, come on, AC!
The atoms may be moving...
Ah, come on, AC!
The atoms may be moving within the air molecules but the air substance may be stationary, at zero velocity, for heat transfer purposes.
Natural convection is a gravitionual...
|
Forum: Renovations & New Construction
12-09-13, 11:43 PM
|
Replies: 588
Views: 545,468
|
Forum: Renovations & New Construction
12-09-13, 11:31 PM
|
Replies: 588
Views: 545,468
|
Forum: Renovations & New Construction
12-09-13, 10:53 PM
|
Replies: 588
Views: 545,468
|
Forum: Renovations & New Construction
12-09-13, 03:37 PM
|
Replies: 588
Views: 545,468
Jeff, You have a point, being that inasmuch as...
Jeff, You have a point, being that inasmuch as that the upward facing 'visable surface' of the bat will absorb downward radiant energy from the subfloor and, because of its low mass, will quickly...
|
Forum: Renovations & New Construction
12-09-13, 01:54 PM
|
Replies: 588
Views: 545,468
|
Forum: Renovations & New Construction
12-08-13, 12:03 PM
|
Replies: 588
Views: 545,468
Do we agree that there is no gravitational...
Do we agree that there is no gravitational forcing function to cause convection heat transfer in the downward direction beneath a heated floor? By conduction transfer, the warmest, lowest density...
|
Forum: Renovations & New Construction
12-07-13, 04:21 PM
|
Replies: 588
Views: 545,468
Adding clarity to coluqualisms
'Heat' does not "rise" in any sense of the word. Heat energy flows from a hotter body to a colder body by any or all of the stated means.
In Convection heat transfer, a hot (lighter) fluid may rise...
|
Forum: Geothermal & Heat Pumps
10-29-13, 11:24 AM
|
Replies: 79
Views: 52,509
|
Forum: For Sale / Trade / Wanted / Web Finds
10-17-13, 11:52 AM
|
Replies: 16
Views: 14,500
The black wires in and out are thru a current...
The black wires in and out are thru a current sensing resistor. The red wires are just a pass thru so only one needed to power the meter and could be tied to the other side of 220AC or to neutral.
|
Forum: Geothermal & Heat Pumps
10-13-13, 10:13 AM
|
Replies: 405
Views: 260,944
|
Forum: Geothermal & Heat Pumps
10-12-13, 11:20 AM
|
Replies: 405
Views: 260,944
|
Forum: Geothermal & Heat Pumps
10-12-13, 09:28 AM
|
Replies: 405
Views: 260,944
|
Forum: For Sale / Trade / Wanted / Web Finds
10-01-13, 02:51 PM
|
Replies: 16
Views: 14,500
|
Forum: Geothermal & Heat Pumps
09-09-13, 09:34 AM
|
Replies: 1,943
Views: 4,988,174
FYI, a cheap power meter, 12 bucks
NEW AC Digital LED power meter monitor Voltage KWh time watt energy Volt Ammeter
New AC Digital LED Power Meter Monitor Voltage kWh Time Watt Energy Volt Ammeter | eBay...
|
Forum: For Sale / Trade / Wanted / Web Finds
09-09-13, 09:34 AM
|
Replies: 16
Views: 14,500
FYI, a cheap power meter, 12 bucks
NEW AC Digital LED power meter monitor Voltage KWh time watt energy Volt Ammeter
New AC Digital LED Power Meter Monitor Voltage kWh Time Watt Energy Volt Ammeter | eBay...
|