[Greenbuilding] Quartz Infrared Heaters

[Bob Waldrop]

But where’s the extra heat coming from with one of these heaters in a box? the advertising is implying that by using this device you are somehow making a profit on the energy input. I don’t see it.

Bob waldrop, OKC


From: Steven Tjiang 
Sent: Thursday, September 22, 2011 12:08 PM
To: Green Building 
Subject: Re: [Greenbuilding] Quartz Infrared Heaters

The conservation of energy (i.e. 1st law of thermodynamics) applies to closed systems.  It is very easy to MOVE much more than 1 kwh of heat from one place to another using 1 kwh of electrical energy.  Happens all the time. 

---- Steve (KZ6LSD)



On Thu, Sep 22, 2011 at 9:13 AM, Bob Waldrop <bwaldrop at cox.net> wrote:

  I am not an expert on electrical heating devices, but the laws of thermodynamics dictate that it is physically impossible to get more than 1 kwh of heat out of 1 kwh of electrical energy.  in fact, the amount of heat will always be less than the amount of energy expended, whether we are talking electricity, natural gas, wood, propane, whatever.  You can't make a profit, you can't break even, you can't get out of the game.

  Bob Waldrop, firmly devoted to obeying the laws of thermodynamics, all the time, everywhere,

  -----Original Message----- From: Kat
  Sent: Thursday, September 22, 2011 10:48 AM
  To: Green Building 

  Subject: Re: [Greenbuilding] Quartz Infrared Heaters

  And if that "someone" would maybe possibly be willing to explain to the rest of us MATH-FREE? ;-)

  -Kat

  On 9/22/2011 8:00 AM, elitalking wrote:

    Corwyn writes: For heating areas, or people?


    My comment:

    This is for heating people.  However, I do not understand how it works.  A radiant infrared lamp directed at an occupant will deliver heat to the body without heating up the whole space.  However, in this device, the lamp is inside a box that includes a fan to distribute the heat convectively.  The box is warm to the touch, but not hot like a woodstove. My guess is that a lamp is used to heat up copper plates and a fan blows this heat to deliver to space.  Therefore the heat is not radiantly delivered to occupant.  I do not understand why 1kwh electricity would produce more heat the 1kwh of heat.  I know someone on this list does understand these devices.  I hope you are willing to explain it to the list.



    Thanks Eli



    ----- Original Message ----- From: "Corwyn" <corwyn at midcoast.com>
    To: "Green Building" <greenbuilding at lists.bioenergylists.org>
    Sent: Tuesday, September 20, 2011 5:34 PM
    Subject: Re: [Greenbuilding] Quartz Infrared Heaters



      On 9/19/2011 4:00 PM, elitalking wrote:



        Do people on the list have experience and opinions about Quartz Infrared
        Heaters such as Edenpure? Are these better than heat element heaters for
        small heat required situations?


      For heating areas, or people?

      Thank you Kindly,

      Corwyn

      -- 
      Topher Belknap
      Green Fret Consulting
      Kermit didn't know the half of it...
      http://www.greenfret.com/
      topher at greenfret.com
      (207) 882-7652

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