XPost: alt.home.repair   
   From: NONONOmisc07@fmguy.com   
      
   In alt.home.repair, on Thu, 22 Dec 2022 22:56:44 -0500, Ralph Mowery   
    wrote:   
      
   >In article , bowman@montana.com   
   >says...   
   >>   
   >> When you depend on answers from 'AnswerBag'....  The models that   
   >> incorporate one or more motors for fans or rotation would be less that   
   >> 100% efficient although I doubt they would use 20% of the input.   
   >>   
   >>   
   >   
   >Even the motors generate heat, so it is still 100 % efficent unless you   
   >count on the power dropped in the wiring in the house going to the   
   >heater.  Fuel powered heaters that are vented to the outside will see   
   >some of the heat going out the exhaust pipe.   
      
   Good point, so let me make my quesiton specific and explicit. In an   
   *electric* heater, heat is the goal.  How can there be waste heat?   How   
   can they be less than 99% efficient?   
      
   Even the cord to the heater doesn't get warm so waste heat in the 14 or   
   12 gauge wires going from the breaker box to the room will not be more   
   than 1% of the power used, certainly nowhere near 20%.  Why do heaters   
   claim efficiency as low as 80%?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)