XPost: rec.arts.comics.strips   
   From: tkoenig@netcologne.de   
      
   BCFD 36  schrieb:   
   > On 1/11/26 10:42, Thomas Koenig wrote:   
   >> On 2026-01-11, Jay Morris  wrote:   
   >>> On 1/10/2026 3:12 PM, Thomas Koenig wrote:   
   >>>> Sounds like a_really_ huge air conditioning unit, but I know that   
   >>>> building insulation is almost unheard of in the US.   
   >>>   
   >>> And this is based on?   
   >>>   
   >>> My last three houses, from 1996, have all been around R-20 in the walls   
   >>> and R-30 in the ceilings.   
   >>   
   >> What is R-20 and R-30?  Another kind of liberty unit? :-)   
   >>   
   >   
   > You must not have shopped for insulation before.   
      
   Actually, I have, but in Europe.   
      
   > There is a very good entry in Wikipedia about R rating:   
   > https://en.wikipedia.org/wiki/R-value_(insulation) that I won't   
   > reproduce here. I recommend reading it. But it says that it is used in   
   > both American and European settings.   
      
   > This is the first paragraph of the article:   
      
   > "The R-value is a measure of thermal resistance, specifically how well a   
   > two-dimensional barrier, such as a layer of insulation,   
      
   So it needs a unit, and it seems there are inconsistent units.   
   Or is it the inverse of a Nusselt number?  Very probably not.   
      
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