This was very interesting , and it explains things very well. ----- Original Message ----- From: "Kevin Doucet" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, October 17, 2006 7:01 PM Subject: Re: [BlindHandyMan] Quartz Infrared Heaters
> Whew! > > I don't know what he said but I am impressed! <smile> > > Just joking. I really am impressed. I don't know how you can write > such a grate and informative post, but, I am glad you can. > > At 08:54 PM 10/14/2006 -0400, you wrote: > >>I find the hype on this device a little hard to read. >> >>The temperature of a room or any space is a function of how fast and far >>the >>molecules of air are moving. This takes a fixed amount of energy. The >>structure of the building, the furniture and other contents of the space >>all >>are made up of molecules which vibrate and the faster and further they >>move, >>the hotter things will be. >> >>Now electricity moves through a conductor more or less at the speed of >>light. When it meets resistance it gives off energy. Typically energy is >>released as sound, various forms of electromagnetic radiation such as >>light, >>heat, magnetism often used to perform movement. >> >>Heating with electricity is pretty efficient because the electricity can >>be >>converted directly into various forms of heat. The electromagnetic >>radiation >>can be pretty well at any point along the range from very long waves such >>as >>long wave radio, up through short wave, UHF, VHF, Microwaves, the spectrum >>of infrared into the light range and beyond ultraviolet through x-rays up >>through gamma and alpha radiation. >> >>Water absorbs radio frequency radiation pretty well but it takes some >>circuitry to produce that sort of energy. Short waves have been used for a >>very long time for therapeutic heat and in the operating room for >>cauterizing for example. Shorter radio waves in what is now known as the >>microwave range are used to efficiently heat water in foods as in cooking >>although that was not the original purpose, it was discovered in the '40s >>as >>a side effect of radar radiation, it was not until the invention of the >>magnetron tube by, I believe the British that it was possible to reliably >>produce radio frequency wave lengths in that range. We could heat >>ourselves >>fairly efficiently with microwaves if we were willing to sit in the >>directed >>beam of a device but the room around us would not warm and there are other >>risks. >> >>This brings us to the light radiation wave lengths. >> >>While we cannot see infrared light it is there. You can feel it coming off >>your stove top when the elements are on. Infrared radiation will pass >>through optically clear materials such as glass and air, well mostly it >>will. It doesn't generate heat very much until it is absorbed by another >>substance. Like light, it can be absorbed and it can be reflected. It is >>mostly the infrared we feel in the sun, why we can feel heat through a >>glass >>window while the window does not get warm. >> >>Some of you will be familiar with those radiant heaters which glow red and >>when the reflector concentrates the light at you, you get warm even if >>surrounding you is cool. >> >>For these to actually heat a room the infrared has to be absorbed by >>something then that heat transferred to the air by convection or >>conduction. >>Air, coming into contact with such a substance will become excited, the >>molecules will jump about more and it warms up. >> >>So, an infrared heater may warm you up or parts of your room up, >>eventually >>the entire room by shining on stuff and being absorbed causing the >>molecules >>of that stuff, be it you or a table to begin jumping about and causing air >>in contact with that stuff to get excited too. >> >>Inside a heater, the infrared bulbs radiate this low red light which is >>absorbed by some or other material which in turn gets hot and excites air >>in >>it's vicinity warming that air which will be moved or circulated either by >>convection or with a fan to warm more air and so on. >> >>Now here is the thing! You can heat oil inside of a panel directly with an >>element and as that panel heats up it will radiate some infrared and it >>will >>warm up air touching it through conduction which will then rise and heat >>air >>it contacts through convection. Either way, 1500 watts of electricity will >>convert into a fixed amount of heat, some methods will be a little more >>direct than others but the efficiency now is pretty well defined. >> >>You can put ten kilowatts into a brick and the brick will cool over some >>period of time but that isn't free energy as it cools, you put in a lot of >>energy to raise the temperature of that mass so it takes some time for >>that >>energy to defuse. The same ten kilowatts applied more slowly over a longer >>period of time will keep you as warm. >> >>Now there may be many reasons to purchase one particular type of electric >>heater but these days the efficiency will be about the same just because >>that is the limit of physics of it. It is the same reason why no one seems >>to be able to get more energy out of a gallon of gasoline than chemistry >>put >>there regardless of the stories of energy companies buying out the patents >>of people inventing super carburetors. >> >>A heat pump might be more efficient in many circumstances because it >>extracts heat from outside air even if that air is cooler than inside air >>and has the other advantage that it can be reversed for cooling in summer >>months but that requires a little more study. >> >>These are just a few thoughts to consider. I think we probably all would >>like to save energy money. It can leave us vulnerable though to hype. >> >> >>Dale Leavens, Cochrane Ontario Canada >>[EMAIL PROTECTED] >>Skype DaleLeavens >>Come and meet Aurora, Nakita and Nanook at our polar bear habitat. >> >> >>----- Original Message ----- >>From: "Geno" <[EMAIL PROTECTED]> >>To: <[email protected]> >>Sent: Saturday, October 14, 2006 5:36 PM >>Subject: [BlindHandyMan] Quartz Infrared Heaters >> >> >> > Ralph, >> > I would very much to know what you think of this unit. >> > Though I use my sun-room for solar heat, the days there is no sun for >> > the >> > sun-room. I am thinking if the reports are good it would be a nice unit >> > to >> > have. >> > So, I would be very interested in your model and it's performance. >> > Geno >> > Portland, ME. sent 5:36 PM EST >> > >> > >> > >> > >> > To listen to the show archives go to link >> > http://acbradio.org/handyman.html >> > or >> > ftp://ftp.acbradio.org/acbradio-archives/handyman/ >> > >> > The Pod Cast address for the Blind Handy Man Show is. >> > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday >> > >> > The Pod Cast address for the Cooking In The Dark Show is. >> > http://www.gcast.com/u/cookingindark/main.xml >> > >> > Visit The New Blind Handy Man Files Page To Review Contributions From >> > Various List Members At The Following Address: >> > http://www.jaws-users.com/handyman/ >> > Visit the new archives page at the following address >> > http://www.mail-archive.com/[email protected]/ >> > For a complete list of email commands pertaining to the Blind Handy Man >> > list just send a blank message to: >> > [EMAIL PROTECTED] >> > Yahoo! Groups Links >> > >> > >> > >> > >> > >> > >> > >> > -- >> > No virus found in this incoming message. >> > Checked by AVG Free Edition. >> > Version: 7.1.408 / Virus Database: 268.13.4/475 - Release Date: >> > 13/10/2006 >> > >> > >> >> >> >>To listen to the show archives go to link >> http://acbradio.org/handyman.html >>or >>ftp://ftp.acbradio.org/acbradio-archives/handyman/ >> >>The Pod Cast address for the Blind Handy Man Show is. >>http://www.acbradio.org/news/xml/podcast.php?pgm=saturday >> >>The Pod Cast address for the Cooking In The Dark Show is. >>http://www.gcast.com/u/cookingindark/main.xml >> >>Visit The New Blind Handy Man Files Page To Review Contributions >> From Various List Members At The Following Address: >>http://www.jaws-users.com/handyman/ >>Visit the new archives page at the following address >>http://www.mail-archive.com/[email protected]/ >>For a complete list of email commands pertaining to the Blind Handy >>Man list just send a blank message to: >>[EMAIL PROTECTED] >>Yahoo! Groups Links >> >> >> >> >> >> >> >> >>-- >>No virus found in this incoming message. >>Checked by AVG Free Edition. >>Version: 7.1.394 / Virus Database: 268.13.4/476 - Release Date: 10/14/2006 >> >> >> >> >>-- >>No virus found in this incoming message. >>Checked by AVG Anti-Virus. >>Version: 7.1.394 / Virus Database: 268.13.4 - Release Date: 10/14/2006 > > Thanks. > > > > Kevin Doucet > [EMAIL PROTECTED] > > > confuse as says > > Blind man with unmarked forehead has large belly! > > > > -- > No virus found in this outgoing message. > Checked by AVG Anti-Virus. > Version: 7.1.394 / Virus Database: 268.13.4 - Release Date: 10/14/2006 > > > > > To listen to the show archives go to link > http://acbradio.org/handyman.html > or > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > The Pod Cast address for the Blind Handy Man Show is. > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > The Pod Cast address for the Cooking In The Dark Show is. > http://www.gcast.com/u/cookingindark/main.xml > > Visit The New Blind Handy Man Files Page To Review Contributions From > Various List Members At The Following Address: > http://www.jaws-users.com/handyman/ > Visit the new archives page at the following address > http://www.mail-archive.com/[email protected]/ > For a complete list of email commands pertaining to the Blind Handy Man > list just send a blank message to: > [EMAIL PROTECTED] > Yahoo! Groups Links > > > > To listen to the show archives go to link http://acbradio.org/handyman.html or ftp://ftp.acbradio.org/acbradio-archives/handyman/ The Pod Cast address for the Blind Handy Man Show is. http://www.acbradio.org/news/xml/podcast.php?pgm=saturday The Pod Cast address for the Cooking In The Dark Show is. http://www.gcast.com/u/cookingindark/main.xml Visit The New Blind Handy Man Files Page To Review Contributions From Various List Members At The Following Address: http://www.jaws-users.com/handyman/ Visit the new archives page at the following address http://www.mail-archive.com/[email protected]/ For a complete list of email commands pertaining to the Blind Handy Man list just send a blank message to: [EMAIL PROTECTED] Yahoo! 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