RE: building a shop - radiant heat

["Phil Ethier"<pethier@isd.net>]

>> and cause all kinds of problems within a few years. Radiant 
>> heat is very
>> efficient since the heat source is at the bottom of the room 
>> and heat rises.
>
>Actually heat radiates (hence the name) in many directions.  The position of

>the source of the radiant heat is inconsequential.  Heated air will rise but

>since the radiant heat does not heat the air this is not much of an issue.


I don't believe for one minute that a warmed floor slab does not heat the air
in the shop. 

 I think that a great deal of the heating effect of a warmed slab is conduction
of heat to the air and the resultant convection.

Phil Ethier

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