Nolan Kienitz Posted January 29, 2011 Report Share Posted January 29, 2011 Well, I ran across a furnace I've never seen before. I've been searching online as well as Mike O's 'age chart' and figured it best to post the nameplate for the brain-trust to review and suggest age of the unit. Sun Dial by the Square D. Company (electric furnace) Click to Enlarge 49.96 KB Quote Link to comment Share on other sites More sharing options...
Erby Posted January 29, 2011 Report Share Posted January 29, 2011 Guess: Week 34 Year 2001 = Nine years. Quote Link to comment Share on other sites More sharing options...
nookandcranny Posted February 3, 2011 Report Share Posted February 3, 2011 No ANSI number anywhere? Sometimes it's on another plate with the temperature rise info on it. Quote Link to comment Share on other sites More sharing options...
sofina76248 Posted April 22, 2011 Report Share Posted April 22, 2011 Sorry, but if that reply is correct using the serial number method, then the one I found recently would be week 26 and built in 1929. Looking on the internet and if it was original to the structure these would be about 25 years or so old. Quote Link to comment Share on other sites More sharing options...
hausdok Posted April 22, 2011 Report Share Posted April 22, 2011 Well, According to the site History of the Industry's Brands located at http://www.johnmills.net/work/history.html Square D production resumed as Sun Dial Manufacturing then stopped in the 1980s. Resumed from what I don't know. I've read through every brand on the site; and, unless I've missed it, I don't see Square D listed anywhere else. ONE TEAM - ONE FIGHT!!! Mike Quote Link to comment Share on other sites More sharing options...
Richard Moore Posted April 22, 2011 Report Share Posted April 22, 2011 How old was the house? Don't see that many but it doesn't bother me to report the age of an electric furnace as unknown. If the elements were drawing appropriate amps, the blower wasn't making any odd noises and you were getting heated air at the registers, there's not a lot else to worry about. Quote Link to comment Share on other sites More sharing options...
hausdok Posted April 22, 2011 Report Share Posted April 22, 2011 How old was the house? Don't see that many but it doesn't bother me to report the age of an electric furnace as unknown. If the elements were drawing appropriate amps, the blower wasn't making any odd noises and you were getting heated air at the registers, there's not a lot else to worry about. I agree, they aren't much more than a huge toaster with a blower attached. They'll last as long as an electrician can get replacement parts; and, since those replaceable parts are pretty much all stock off-the-shelf electrical components that can be a long time before parts are no longer made or in stock. ONE TEAM - ONE FIGHT!!! Mike Quote Link to comment Share on other sites More sharing options...
John Kogel Posted April 22, 2011 Report Share Posted April 22, 2011 How old was the house? Don't see that many but it doesn't bother me to report the age of an electric furnace as unknown. If the elements were drawing appropriate amps, the blower wasn't making any odd noises and you were getting heated air at the registers, there's not a lot else to worry about. I agree, they aren't much more than a huge toaster with a blower attached. They'll last as long as an electrician can get replacement parts; and, since those replaceable parts are pretty much all stock off-the-shelf electrical components that can be a long time before parts are no longer made or in stock. ONE TEAM - ONE FIGHT!!! Mike Coincidence, I had one yesterday, a 1972 Duo-matic according to the manual that came with it. I can't see any relationship to the year in the serial #. Nice unit for 39 years old. Like you said, Mike, it's a giant toaster. Click to Enlarge 69.62 KB Click to Enlarge 56.69 KB Click to Enlarge 64.44 KB It may have been built in '74, as that is when the house was first occupied. Back then we manufactured these products in our own country. Weird, eh? Quote Link to comment Share on other sites More sharing options...
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