Forum: Renovations & New Construction
12-15-13, 10:57 PM
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Replies: 588
Views: 515,610
"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,...
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Forum: Renovations & New Construction
12-10-13, 12:14 AM
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Replies: 588
Views: 515,610
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...
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Forum: Renovations & New Construction
12-09-13, 11:43 PM
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Replies: 588
Views: 515,610
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Forum: Renovations & New Construction
12-09-13, 11:31 PM
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Replies: 588
Views: 515,610
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Forum: Renovations & New Construction
12-09-13, 10:53 PM
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Replies: 588
Views: 515,610
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Forum: Renovations & New Construction
12-09-13, 03:37 PM
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Replies: 588
Views: 515,610
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...
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Forum: Renovations & New Construction
12-09-13, 01:54 PM
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Replies: 588
Views: 515,610
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Forum: Renovations & New Construction
12-08-13, 12:03 PM
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Replies: 588
Views: 515,610
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...
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Forum: Renovations & New Construction
12-07-13, 04:21 PM
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Replies: 588
Views: 515,610
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...
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Forum: Renovations & New Construction
03-31-13, 10:16 AM
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Replies: 588
Views: 515,610
R value of double glazed vertical lites
The heat loss of double glazed vertical lites is the combination of conductive and convection losses. The optimum being ½” to ⅝” spacing for minimum heat loss.
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Forum: Renovations & New Construction
03-30-13, 07:13 PM
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Replies: 588
Views: 515,610
Manifolding parallel loops,
Q1: Sure, it can be done, but not suitable for in floor heating.
All parallel loops driven from a pressurized manifold, regardless of diameter and length will experience the same overall pressure...
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Forum: Renovations & New Construction
09-01-12, 02:18 PM
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Replies: 588
Views: 515,610
My 15 year old radiant system.
I also have a tight 2000sf home also having a small air exchange unit for the same purpose, single speed manual on/off and seldom used as not needed for moisture control in Nevada’s dry air. (Not big...
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Forum: Renovations & New Construction
05-22-12, 10:37 AM
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Replies: 588
Views: 515,610
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Forum: Renovations & New Construction
05-03-12, 11:44 AM
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Replies: 588
Views: 515,610
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Forum: Renovations & New Construction
05-03-12, 12:08 AM
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Replies: 588
Views: 515,610
Valad,
The point of my critique is not at all...
Valad,
The point of my critique is not at all to put down your design nor your decision to implement it for your purposes, rather it is intended to give others insight to alternatives from my...
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Forum: Renovations & New Construction
05-02-12, 01:19 PM
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Replies: 588
Views: 515,610
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Forum: Renovations & New Construction
05-02-12, 10:28 AM
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Replies: 588
Views: 515,610
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Forum: Renovations & New Construction
05-01-12, 06:04 PM
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Replies: 588
Views: 515,610
FYI, In 1995 i designed an in floor hydronic...
FYI, In 1995 i designed an in floor hydronic heating system for our conventional stick frame new home (2x6 outside studs, crawl space under TJI floor joists, ¾” ply sub floor), single floor, about...
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