There is no doubt at all that it will produce heat and quite possibly even a little better than other 1500 watt heaters but even according to these figures it is likely to be inadequate.
Well insulated they recommend 32000 BTU per thousand square feet. At 3.413 BTU per Watt it would require 9375.9156 Watts and that heater is 1500 so, in a well insulated thousand square foot home it would require 6.25 1500 Watt heaters. Either that or it is over 6 times as efficient at squeezing out heat energy from a watt. In the spring and fall these heaters can certainly be enough to take the chill out of a room as a supplement heater and I hope you are happy with it. I just think that anyone expecting a 1500 watt heater to keep an entire home warm even with minimal heating requirements will be disappointed. Above all I deplore that sort of selling technique. It feels unfair to me. Dale Leavens, Cochrane Ontario Canada [EMAIL PROTECTED] Skype DaleLeavens Come and meet Aurora, Nakita and Nanook at our polar bear habitat. ----- Original Message ----- From: "William Stephan" <[EMAIL PROTECTED]> To: <blindhandyman@yahoogroups.com> Sent: Sunday, October 15, 2006 1:17 PM Subject: RE: [BlindHandyMan] Quartz Infrared Heaters > I'm suspending judgment so far as to whether or not the Sun Twin we just > bought is worth the money or not. Here's some info I found at sometime > in the past that might help estimating heat requirements. Remember, > this is Tennessee, so your milage may vary. > 1 watt = 3.413BTUs > > > Gas Space Heat Required by Square Footage > > Table with 5 columns and 5 rows > > BTUs Required > > Square Feet > 200 > 400 > 600 > 800 > > Well Insulated > 6,400 > 12,800 > 19,200 > 25,600 > > Average > 10,000 > 20,000 > 30,000 > 40,000 > > Poorly Insulated > 12,800 > 25,600 > 38,400 > 51,200 > table end > > Table with 5 columns and 5 rows > > BTUs Required > > Square Feet > 1,000 > 1,200 > 1,600 > 2,000 > > Well Insulated > 32,000 > 38,400 > 51,200 > 64,000 > > Average > 50,000 > 60,000 > 80,000 > 100,000 > > Poorly Insulated > 64,000 > 76,800 > 102,400 > 128,000 > table end > THIS TABLE IS FOR QUICK REFERENCE ONLY. EVERY APPLICATION IS DIFFERENT > AND THERE ARE MANY FACTORS TO CONSIDER. > Notes: > This table does not distinguish between vented and unvented heaters. > It utilizes formulas that have been used by Middle Tennessee Natural > Gas employees. > The "well insulated" rating is figured using 4 BTUs per cubic foot and > a ceiling height of 8 feet. > The "average" rating is figured using 50 BTUs per square foot. > The "poorly insulated" rating is figured using 8 BTUs per cubic foot > and a ceiling height of 8 feet. > > > -----Original Message----- > From: blindhandyman@yahoogroups.com > [mailto:[EMAIL PROTECTED] On Behalf Of Dale Leavens > Sent: Sunday, October 15, 2006 10:47 AM > To: blindhandyman@yahoogroups.com > Subject: Re: [BlindHandyMan] Quartz Infrared Heaters > > Well here is the thing in my humble opinion and it really is humble. > > A thousand square feet is a modest little house size. I quite simply > don't > believe it could be heated with 1500 watts. That is only a little more > energy than your toaster or electric kettle or iron or hair drier uses. > There are cars which the kids cruise around our lake in the middle of > our > town have more power in there stereo systems. > > Now if you only need to keep the building a couple of degrees above the > out > door temperature this may be adequate but your propane furnace will do > that > with little more than a grunt and you have already paid for it and it > won't > take up any more space than it already does. > > Now I may well be wrong and you should bear in mind that I am generally > more > skeptical and maybe less trusting than I should be. It might well be > possible but I suspect it is an expensive way of converting electricity > into > heat which, if it is more efficient has to be only marginally more > efficient > and electricity so far is still the most costly energy source in most of > the > world. I live under two thousand yards from a cogeneration plant which > burns > saw dust from the local mills to supplement natural gas which comes > along a > pipeline about 1500 miles from the source of the gas in the ground. They > > burn the gas after pumping it half way across the continent and generate > > electricity for the grid at a proffit. I don't grasp how heating a home > with > that electricity after the losses through the grid can be cheaper than > burning the gas or how you can squeeze more heat out of that electricity > > than the gas originally put into it. Of course my wife insists that a > few > ounces of chocolate will put five pounds on her and I don't argue that > so > perhaps it may be. > > > Dale Leavens, Cochrane Ontario Canada > [EMAIL PROTECTED] > Skype DaleLeavens > Come and meet Aurora, Nakita and Nanook at our polar bear habitat. > > > ----- Original Message ----- > From: "Ralph Supernaw" <[EMAIL PROTECTED]> > To: <blindhandyman@yahoogroups.com> > Sent: Sunday, October 15, 2006 7:28 AM > Subject: RE: [BlindHandyMan] Quartz Infrared Heaters > > >> These are good points, Dale. When I decided to buy one of these I >> compared >> the cost of running 1500 watts to warm about 1000 square feet of our > house >> compared to buying propane for our furnace. My calculations were > pretty >> rough but I figured the Sun Twin would pay for itself in one heatin >> season. >> However, propane is down from about $1.80 last winter to about $1.20 > right >> now so who knows. >> _____ >> >> From: blindhandyman@yahoogroups.com > [mailto:[EMAIL PROTECTED] >> On Behalf Of Dale Leavens >> Sent: Saturday, October 14, 2006 7:55 PM >> To: blindhandyman@yahoogroups.com >> Subject: Re: [BlindHandyMan] Quartz Infrared Heaters >> >> >> >> 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] <mailto:DLeavens%40puc.net> net >> Skype DaleLeavens >> Come and meet Aurora, Nakita and Nanook at our polar bear habitat. >> >> ----- Original Message ----- >> From: "Geno" <[EMAIL PROTECTED] <mailto:ridsto48%40maine.rr.com> rr.com> >> To: <blindhandyman@ <mailto:blindhandyman%40yahoogroups.com> >> yahoogroups.com> >> 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. <http://acbradio.org/handyman.html> > org/handyman.html >>> or >>> ftp://ftp.acbradio. > <ftp://ftp.acbradio.org/acbradio-archives/handyman/> >> org/acbradio-archives/handyman/ >>> >>> The Pod Cast address for the Blind Handy Man Show is. >>> http://www.acbradio >> <http://www.acbradio.org/news/xml/podcast.php?pgm=saturday> >> .org/news/xml/podcast.php?pgm=saturday >>> >>> The Pod Cast address for the Cooking In The Dark Show is. >>> http://www.gcast. <http://www.gcast.com/u/cookingindark/main.xml> >> 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- <http://www.jaws-users.com/handyman/> >>> users.com/handyman/ >>> Visit the new archives page at the following address >>> http://www.mail- >> <http://www.mail-archive.com/blindhandyman@yahoogroups.com/> >> archive.com/blindhandyman@yahoogroups.com/ >>> For a complete list of email commands pertaining to the Blind Handy > Man >>> list just send a blank message to: >>> blindhandyman- <mailto:blindhandyman-help%40yahoogroups.com> >> [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 >>> >>> >> >> >> >> >> >> >> [Non-text portions of this message have been removed] >> >> >> >> 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/blindhandyman@yahoogroups.com/ >> 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/blindhandyman@yahoogroups.com/ > 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/blindhandyman@yahoogroups.com/ > 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: 268.13.4/476 - Release Date: 14/10/2006 > > 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/blindhandyman@yahoogroups.com/ 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 visit your group on the web, go to: http://groups.yahoo.com/group/blindhandyman/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/blindhandyman/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
