Nordyne serial number age

012345 = sequential number. Based on the above A.O. Smith water heater serial number, the unit was manufactured in March 2002. Serial number #1056A0012345. 01 = 2010. 02 = week 56. A012345 = sequential number. This serial number style is similar to the State water heater. Based on the above serial number, the unit was manufactured in 2010.

Nordyne serial number age. The serial numbers for Bobcat equipment is placed in several different locations on different types of machines, according to Bobcat. The Operation and Maintenance manual for each piece of equipment shows where the serial number tag is loca...

Aug 21, 2023 · How to determine the date of production/manufacture or age of York ® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from as little ...

We would like to show you a description here but the site won't allow us.AMBIRAD-Nordyne®. How to determine the date of production/manufacture or age of Nordyne® HVAC Systems. The date of production/manufacture or age of Nordyne® HVAC equipment can be …6 B6EMMN SERIES AIR HANDLER DESCRIPTION B6EMMNX36K-B B6EMMNX60K-C 922467 922470 blower assembly 921865 921862 blower housing 297217R 297219R blower motor 622500R 622501R blower wheel 667258R 667280R capacitor — — coil support rod (not shown) 669100R 669100R control board 624736R 624736R doors 921869 921870 filter door 921875 921876 filter door fastners (not shown) ...How do I determine the age of my heat pump? Friday, December 13, 2019. The date of manufacture is encoded in the serial number on the data plate of almost all heat pumps. Go to the outside unit (condenser) and look for the metal plate or sticker on the side with the manufacturer’s data. Each manufacturer has their own system.How to determine the date of production/manufacture or age of Tappan® HVAC Systems. The date of production/manufacture or age of Tappan® HVAC equipment can be determined from the serial number located on the data plate. Parent Company: Nortek (formerly Nordyne Manufacturing)

Serial Number format: GSD020700023 (All Nordyne Brands have serial numbers that are 12 digits long and start with a letter). (This serial number is fictitious). Using the fourth, fifth, sixth and seventh digits of the serial number 0207GSD 00023 you will find the year and month of manufacture.yamaha hi-hat replacement parts. nordyne serial number yearFrigidaire® How to determine the date of production/manufacture or age of Frigidaire® HVAC Systems. The date of production/manufacture or age of Frigidaire® …The cheat sheet I'm using for HVAC is one I obtained on this message board a while back. It doesn't include Westinghouse, and every once in a while I come across another manufacturer that's not included. Any leads on finding a list of serial number/age codes that is pretty complete? Unit #'s 91 and 92 built in the 2nd Quarter of 1972.To demonstrate the action of the built-in Nordyne Serial Number Decoder, take a look at the following results for a Manmouth serial number. In this example, the 4th and 5th digits will give you the manufacture year, and the 6th and 7th digits will give you the month. The decoder will calculate the age for you. Decoder Results G6R9905-05028 ...Founded over a century ago, Ingersoll Rand (now Trane Technologies) is an industry giant.They are currently responsible for the Trane, American Standard, and Ameristar brands of HVAC equipment. Given this, the built-in Ingersoll Rand Serial Number Decoder must be able to handle several different serial number styles, past and present, used by these companies.The date of production/manufacture or age of Day & Night® HVAC equipment can be determined from the serial number located on the data plate. Parent Company: International Combort Products (ICP). part of UTC Building & Industrial Systems, a subsidiary company of United Technologies Corp. ... Description: Nine (9) character …

Serial Number format: GSD020700023 (All Nordyne Brands have serial numbers that are 12 digits long and start with a letter). (This serial number is fictitious). Using the fourth, fifth, sixth and seventh digits of the serial number 0207GSD 00023 you will find the year and month of manufacture.Decoding Trane model number has never been this easy, thanks to the creation of the HVAC Decoder App. The HVAC Decoder App does all this for you; just enter the model number and get the results. Example Trane Model Number: TUD2B060A9V3VB. The results from the HVAC Decoder App are shown below.709046A - Gas Furnace/Heater. 709047A - Gas Furnace/Heater. 7090750 - Package Units. 7090800 - Package Units. 709123A - Oil Furnace/Heater. 7091290 - Air Conditioner and Heat Pump. 7091300 - Package Units. 709133A - Package Units. 7091580 - Package Units.For Nordyne, you should look for the two numbers in the second cluster of digits of the model number, which will be divisible by 6 or 12, and represents the nominal BTU of the system in thousands. A ton of air conditioning equals 12,000 BTU, and 36 divided by 12 equals 3, so the data plate below indicates the system is 3 tons.Ludwig Piano Serial Number Chart UPDATED Idle Brick Breaker Balls [VERIFIED] The Exorcist Full Movie Download 480p Mkv seldyspa ... __EXCLUSIVE__ Nordyne-piston-size-chart Vincent 09, 29 - DfwwgJC @iMGSRC.RU Free Summer Portraits, 025 @iMGSRC.RU [BETTER] Zyxel Usg Firmware Recovery !EXCLUSIVE! !!TOP!! ...A product displaying the Serial Number JC122376 was manufactured in 1982. A product displaying the Serial Number LG124622 W was manufactured in 2006. Select Date Range: 2020-to-present 2010 - 2019 2000 - 2009 1990 - 1999 1980-to …

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How can I tell the age of a Maytag heat pump or air conditioner from the serial number? Friday, April 24, 2020. The 4th and 5th digits of the serial number of a Maytag HVAC product are the year of manufacture. So the data plate shown below indicates it was built in 2006.Quickly find the answers you need in our technical library. Here we host technical specifications, wiring diagrams, installation instructions and more. This library is intended for use by professional HVAC contractors only. All Literature Links by Model Number.Style 1: 000F950926066-1. Description: Style 1: Fifteen (15) character Serial number (includes dash (-)), that begins with three (3) numerical digits followed by a letter and nine (9) numerical digits a dash (1) and ends with one (1) numerical digits. The month of manufacture is the 4th letter digit. The year of manufacture is the 5th & 6th ...Its 6 years old and whats the diffrence in split and window? Its got air ducts so im guessing its not window.This is usually printed next to a publication number on the manual and looks something like 02-20 (February of 2020), 01-21 (January of 2021) or 04/17 (April of 2017). The print date may not exactly match the month and year from your serial number. As long as it is close to the serial number, it will verify that you have determined the correct age.Websites such as BuilderCenter.org provide a great tool to determine the age of your unit. Simply find the manufacture date of your unit on the site, and they will educate you on how to interpret your model or serial number. In the event, your unit is not listed on their website, you can do a quick Internet search to find a decoder for your model.

Nordyne Serial Number Located On The date of productionmanufacture or age of Nordyne HVAC equipment can be determined from the serial number located on the data plate. Parent Company: Nortek (formerly Nordyne Manufacturing) DA: 23 PA: 18 MOZ Rank: 41 Nordyne Parts Lookup - PNLookup.com - Parts Number Lookup Pnlookup.com Nordyne Parts. ...The Westinghouse name was bought by Nordyne for the use on their HVAC equipment only. Gibson, Tappan, Philco, Maytag, Kelvinator, Grandaire, and Frigidaire names were also purchased by Nordyne. ... Any leads on finding a list of serial number/age codes that is pretty complete? Unit #'s 91 and 92 built in the 2nd Quarter of 1972. dvalley (David ...The serial number indicates age from 1972 and later. ----- Coleman Prior to April 1992, the serial number’s first two numbers are the month, then year, then series. After April 1992, the first two numbers are the year, then month, then series. ----- Comfortmaker (International Comfort) The serial number is a letter followed by a nine-digit ... Tuesday, April 30, 2019. The third and fourth numbers in the serial number are the year of manufacture for an Intertherm water heater. So the data plate shown above indicates it was manufactured in 1985. Also, see our blog posts How can I determine the age of a water heater if the serial number is missing or decoding it is impossible? and What ...HOW CAN YOU TELL THE AGE OF THE HEATER? Nordyne Water Heater INI502HMT. 0 Solutions. do I purchase this anode rod for water heater mode. Nordyne Water Heater I N140DHMSE4. 0 Solutions. Manual. Nordyne Water Heater hse-30f-24os. 0 Solutions. what will replace nordyne model # IN1402HMSE3 40 . Nordyne Water Heater IN1402HMSE3. 0 Solutions ...From the serial number, look at the first four digits of the serial number KO 74 - where the format is MM YY for the production month and year. Most likely this unit was made in 1974. Another example, using Inter therm model #HE40-240SH and the Serial # 078318181 we would decode the date of manufacture as MM YY in the first four digits or July ...Kelvinator®. How to determine the date of production/manufacture or age of Kelvinator® HVAC Systems. The date of production/manufacture or age of Kelvinator® HVAC equipment can be determined from the serial number located on the data plate. Parent Company: Nortek (formerly Nordyne Manufacturing){{ngMeta.description}}96-45678 (96 represents the year = 1996) 0607456789 (06 represents the year and 07 is the month = June 2007) If your online search doesn’t lead anywhere, try contacting the manufacturer directly. Come prepared since customer service might ask for a picture of your heating system to help them determine the furnace’s age.Nordyne HVAC Parts. Designed with exceptional attention to detail and built to last, Nordyne parts help you get dependable performance and longevity out of every system. We offer a complete selection of Nordyne parts to support completely successful repair and maintenance jobs.

Find everything you need for your Nordyne Furnace G5RA 144C-20 at RepairClinic.com. We have manuals, guides and parts for common G5RA 144C-20 problems. En español Live Chat online. 1-800-269-2609 24/7. ... For additional assistance, please contact our customer service number at 1-800-269-2609, 24-hours a day, ...

If you need help determining the age of your furnace, or if you need to replace your furnace, contact Precision Heating & Air. We’re the experts you can trust when it comes to all things heating and air. We are easily contacted via phone at (770) 758-4552 or through our convenient online form.What should pop up is a site explaining how to decode the serial number to find the manufacture's date. For example—and this is only for one manufacturer—you may learn that the serial number 7032TPW3F for your brand and model of AC means the unit was manufactured in the 3rd fiscal week of 2007, i.e. January 2007.Saturday, June 23, 2018 The fourth and fifth characters in the serial number are the year of manufacture for a Nordyne system. So the serial number shown below on the data plate of a Nordyne package heat pump indicates that it was manufactured in 2015.Need some help with the age of a NORDYNE condensing unit. Ser# JSF050509819. Model # JS3BA-30KA. ... Nordyne manufacture date is digits 4 -7 in serial Number = Y-Y-M-M. JSF050509819. bhartley ... Nordyne- Gibson Furnace Serial# kgd050104200 How old is this unit? jmoore5 (Jeffrey Moore, ...You can also use this form to LEARN THE AGE of your unit to determine if it is still in warranty, please click here to download the Serial Number Code/Age ...Enter the 7-digit CP/Serial Number of the boiler to obtain the manufacturing date and any associated information on the product. If the CP# is only 6 digits, enter a leading zero, e.g. 0137718. This look-up will not give manufacturing information for any other Weil-McLain product but boilers.Table 7.2.11 Nordyne Model Number Description G 6 R A 144 C 20 C Furnace Fuel Type Design Series Furnace Type Furnace Configuration Heating Input (btu/h) Certification Type Nominal CFM Cabinet Width G, FG, KG, L = Gas 6 or 1 R = Residential T = Residential, two-stage A = Upflow C = Upflow, Condensing K = Downflow L = Downflow,Enter the 7-digit CP/Serial Number of the boiler to obtain the manufacturing date and any associated information on the product. If the CP# is only 6 digits, enter a leading zero, e.g. 0137718. This look-up will not give manufacturing information for any other Weil-McLain product but boilers.Serial Number format: GSD020700023 (All Nordyne Brands have serial numbers that are 12 digits long and start with a letter). (This serial number is fictitious). Using the fourth, fifth, sixth and seventh digits of the serial number 0207GSD 00023 you will find the year and month of manufacture.Address: 177 Bullock Rd., East Freetown, MA. 24/7 Phone (Answered Live): 508.763.3738. Fax: 508.763.8541. When making the decision whether to repair or replace your HVAC unit, it's a good idea to look at the age of the unit as well as the overall condition. Most HVAC units today have a useful life of 15-20 years as a general rule.

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Style 1: CN3D104 F 0481 2518. Year of manufacture is 11th & 12th numerical digits. Help keep this site FREE to the public. Please consider a single donation of $5, $10, $20, $50 or more…. Or join some of our generous donors who provide $2 to $10 automatic monthly donations!FS3BA-030KA. Application Type: Residential. Electrical: 208/230 Volt-1 Phase. Description: Clean & Ready To Cool! *Per EPA regulations, Unit is Charged with Dry Gas for Testing and Shipping. Shop now for Guaranteed Used Central Air Conditioners, Heat Pumps and AC Compressors including NORDYNE Used AC Condenser FS3BA-030KA The worlds largest ...Trane HVAC Age: Serial Number Decoding for AC, Furnace & Heat Pump. For units made from 2002 to 2009, the first number represents the year: 2 is 2002, 3 is 2003, etc. The next two numbers are the week of the year, so 01 would be the first week in January, and 52 would be the last week in December. Starting in 2010, the first two numbers are the ...We would like to show you a description here but the site won't allow us.Example serial number styles/formats found: The Serial Numbers shown are utilized with all Paloma Brand systems. Style 1: 1204D01234. Style 2: OR177 M2807 00097. Style 3: W291013412. Style 4: CB5D302F099903346. Style 5: 123451872.Websites such as BuilderCenter.org provide a great tool to determine the age of your unit. Simply find the manufacture date of your unit on the site, and they will educate you on how to interpret your model or serial number. In the event, your unit is not listed on their website, you can do a quick Internet search to find a decoder for your model.Apr 19, 2016 · How to determine the date of production/manufacture or age of Tappan® HVAC Systems. The date of production/manufacture or age of Tappan® HVAC equipment can be determined from the serial number located on the data plate. Parent Company: Nortek (formerly Nordyne Manufacturing) Contact Information: Nortek Global HVAC customer service Hours: 8:00 am - 3:30 pm CST Monday through Friday Phone: 1-800-422-4328 e-mail customer service (Please enter model and serial number in the subject line of the e-mail) ….

All appliances have a model number and a serial number tag located on the appliance. Generally they are available for the customer to find quickly. If you are unable to locate your tag, please see your original manual and or invoice from when you purchased the appliance. ... You're reviewing: 664906R Nordyne CONDENSER COIL ASSEMBLY Your Rating ...SERIAL NUMBER IDENTIFICATION CODE Nominal CFM Airflow @ 0.5" WC 08 = 800 16 = 1600 12 = 1200 20 = 2000 G 6 R A 040 C 16 C = U.S. / Canada N = NOx U.S. Design Series A = 80+ AFUE Upflow/ Horizontal K = 80+ AFUE Downflow Residential Gas Heating Input - Btuh 040 = 40,000 080 = 80,000 120 = 120,000*This website should only be accessed if you are at least 18 years old or of legal age to view such material in your local jurisdiction, whichever is greater. You are about to enter a website that contains explicit material (pornography). 0 Comments 4/9/2023 0 CommentsI have a Westinghouse (Nordyne) L1RA-090C-16B furnace Serial Number L1A030902358. The other day the pilot would light and the burners would come on for a few seconds then shut down. ... Hi Billy, what is the age of a Nordyne Miller furnace serial number CMC XXXXXXXXX Also, ...Aluminum Filter Kit 17″ X 23″. $ 38.36. Add to cart. Nordyne Miller Intertherm Replacement Parts.If the label is missing, or the installation date is not listed, you can use the serial number to determine the age of your unit. Decoding the serial number. Serial number formats vary by manufacturer, with the installation date placed differently in each case. Check the brand name on your water heater and then use the following guide to ...2) Look for a sheet taped to the front of the air handler (indoor unit), where the HVAC contractor has listed the performance data for the system. 3) Some manufacturers encode the SEER rating in the beginning of the model number on the data plate of the condenser. For example, the “XC21” at the beginning of the model number of the Lennox ...Description: Eight (8) character serial number begins with one (1) letter followed by one (1) numerical digit and then six (6) more characters.This style was used from 1980 thru 1984. CAUTION: Canada units reverse the Year and Month positions from U.S. made serial number styles. U.S. Systems: Year of manufacture can be determined by using the 2 nd position (number) of the serial number: 0 - 4 ... Nordyne serial number age, Choopulu Kalisina Subhavela Serial Cast Nordyne Serial Number Age Firefox 10 Download Free Underworld Blood Wars Hd Free Firefox 3.0 Download Windows 95 Emulator In Browser Free Gerber Viewer Software Black Veil Brides Band Members Paint Shop Pro 7 Free Code Composer Studio Download 6.2, To determine the age of a Nordyne system, go to our blog post How can I tell the age of a Nordyne air conditioner from the serial number? To learn more about heating and air …, New Name Sets Strategy for Growth Through Additional Markets and Expanded Product Offerings. Providence, RI and St. Louis, MO, January 22, 2015 — Nortek, Inc. (Nasdaq: NTK) announced today that its subsidiary NORDYNE LLC, a manufacturer of heating and cooling equipment, and its NORDYNE International subsidiary have changed their names to Nortek Global HVAC LLC and Nortek Global HVAC Latin ..., 800-721-2590. Contact us between 8AM and 6PM EST, Monday - Friday. 7 Products. List View. Sort By. Nordyne., The date of production/manufacture or age of Bradford White brand Water Heater equipment can be determined from the nine or ten character serial number located on the rating data plate. The serial number begins with two (2) letters followed by a sequential production number (seven digits in length before December 2007, and eight …, Breakthrough Innovations. Exceptional Customer Experience. Same Day Shipping. Continue to Parts Town. Continue to Marmon Link. Call: 800.438.8898. Live Chat. Multi-SKU Order. Search by Serial #., How can I tell the age of a Nordyne air conditioner from the serial number? Saturday, June 23, 2018. The fourth and fifth characters in the serial number are the year of manufacture for a Nordyne system. So the serial number shown below on the data plate of a Nordyne package heat pump indicates that it was manufactured in 2015., Associate Degree. 5,490 satisfied customers. I have a Nordyne Model S3BA-060K Serial# S3B9512-01843. The. The inside blower motor does not kick off when the compressor does. I have replaced the Fan relay board at the compressor and the furnace … read more., The age of the equipment is--> 21 years OTHER INFORMATION Style 3 The sequence numbers are--> G6R Mobile/Desktop application to decode HVAC Nordyne serial numbers , Hk Serial Number Pedretti Occupational Therapy Pdf Free Download Download Blaze And The Monster Machines Episodes ... Nordyne Serial Number Age Final Fantasy 14 Stormblood Download Wolfenstein The New Order Download Max Steel Hd Movie Download 112 Q Mike Slim Daron Download Torrent Max Xbox One Controller Driver ..., Serial Number format: GSD020700023 (All Nordyne Brands have serial numbers that are 12 digits long and start with a letter). (This serial number is fictitious). Using the fourth, fifth, sixth and seventh digits of the serial number 0207GSD 00023 you will find the year and month of manufacture., 709046A - Gas Furnace/Heater. 709047A - Gas Furnace/Heater. 7090750 - Package Units. 7090800 - Package Units. 709123A - Oil Furnace/Heater. 7091290 - Air Conditioner and Heat Pump. 7091300 - Package Units. 709133A - Package Units. 7091580 - Package Units., The age of the equipment is--> 21 years OTHER INFORMATION Style 3 The sequence numbers are--> G6R Mobile/Desktop application to decode HVAC Nordyne serial numbers, Associate Degree. 5,490 satisfied customers. I have a Nordyne Model S3BA-060K Serial# S3B9512-01843. The. The inside blower motor does not kick off when the compressor does. I have replaced the Fan relay board at the compressor and the furnace … read more., How to determine the date of production/manufacture or age of Westinghouse® HVAC Systems. The date of production/manufacture or age of Westinghouse® HVAC equipment can be determined from the serial number located on the data plate. Parent Company: Nortek (formerly Nordyne Manufacturing), Much like Louis Vuitton's switch to the Radio Frequency Identification (RFID) microchips and eliminating date codes, Chanel has put an end to the need for authenticity cards and the serial number sticker. This Chanel Serial Number Checker will allow you to check Chanel serial number online and get your handbag's age as a result.Īs of April ..., Nordyne® How to determine the date of production/manufacture or age of Nordyne® HVAC Systems. 7086650 - Air Conditioner and Heat Pump 708678B - Gas Furnace/Heater 708709B - Air Handler ... Air conditioner and heat pump manufacturer's information; serial number gives A/C age., How to determine the date of production/manufacture or age of A.O. Smith ® brand Water Heater Systems. Water heaters in general have an average estimated useful service life of 10-12 years, though water quality, routine upkeep/maintenance, and location of the water heater will all play critical roles in the longevity of these systems., Ten (10) character all numerical serial number. Year of manufacture 3rd-4th digits of the serial number. Month of manufacture is 1st-2nd digits of the serial number. Using the first, second, third and fourth digits of the serial number 01881234 you will find the month and year of manufacture. , Here is what a standard Goodman AC serial number looks like: 9906 015000. The first 2 digits in the serial number will tell us in what year this Goodman AC was manufactured. In this case, we have ’99’; that means this Goodman AC was made in 1999. The 3rd and 4th digits will tell you the month as well. , Then, of course, the airflow amount in CFM (cubic feet per minute) is also needed to make sure the furnace supplies enough air flow for the A/C system. Decoding the Heil products is as easy as entering the model number in your smartphone using the HVAC Decoder App. Example Heil model number N8MSL0451412A. The results from the HVAC Decoder App ..., Contact Information: Nortek Global HVAC customer service Hours: 8:00 am - 3:30 pm CST Monday through Friday Phone: 1-800-422-4328 e-mail customer service (Please enter model and serial number in the subject line of the e-mail), For the 2020 base station, the date code appears below the serial number on the product item label. In short, you can easily determine the age of your appliance by looking at the serial number on the nameplate. The first number indicates the year of manufacture, and the second and third digits indicate the week of production., The date of production/manufacture or age of Armstrong Air® HVAC equipment can be determined from the serial number located on the data plate. Parent Company: Armstrong Air Conditioning, Inc., which is part of the Allied Air Division of Lennox. ... Example serial number styles/formats found: Style 1: 46 07 B 20058;, HVAC Product Registration: Furnace Model: MG#*, RG#*, CMF*, M5S*, VMA*, VMC*, RE9*, E7E*, & MB7*. Style Crest offers an extended Registered Limited Parts Warranty on Qualifying Revolv Split System Condensers and MG2* high-efficiency MH Furnaces, when properly registered: Parts-only coverage may be extended to 10-Years on Condensers only., Of these methods there are several, but, rather than hunt down the nomenclature for your specific style of serial number, you can simply let the HVAC Decoder App handle the different cases for you. The results from the built-in Goodman Serial Number Decoder are shown below. For this particular style, the first two digits indicate the year of ..., Jun 29, 2023 · Y=year of manufacturer X=letter 7=numbers. The year of manufacture for Carrier equipment is encoded in the serial number and is indicated by the third and fourth position numbers. (For example, if YY was 01 that would indicate that the unit was manufactured in 2001). 77 YY X77777 (3rd and 4th number indicates year) , contact the NORDYNE warranty department for a copy. Model Number Coil Model Number Cooling Capacity SEER EER Heating Capacity BTUH @ 47F HSPF SCFM JT5BD-018K GB5B(M,V)-024K-B+LLS 18000 13 12.4 17800 8 600 JT5BD-024KA GB5BM-025K-B+LLS 24000 13 12.4 22400 7.95 750 JT5BD-030KA GB5BM-030K-B+LLS 29000 13 12.1 28600 8 870, 1920 - Company incorporated in Japan. 1921 - Launches first tankless water heater product. 1923 - Sales and export include tabletop stoves, ranges, gas ovens, and tankless water heaters. 1971 - Company changes name from Rinnai Manufacturing Co. Ltd. to Rinnai Corporation. 1974 - Rinnai America Corporation is established in Los Angeles, …, The date of production/manufacture or age of Comfort-Aire® HVAC equipment can be determined from the serial number located on the data plate. Parent Company: Heat Controller, Inc. (H.C.I.) Sister or similar Brands Include: Century® | Comfort-Aire® | Conquest® | Corsair® | Grimsby® | Heat Controller® | Patriot 80®., Thursday, June 14, 2018. Airtemp central HVAC systems were manufactured by Chrysler, and then Fedders, both in the 1970s and the units are now long gone. The brand is currently made by Nortek (formerly Nordyne) and the 4th and 5th digits of the serial number are the year of manufacture, usually the first numbers after the initial three letters., Need some help with the age of a NORDYNE condensing unit. Ser# JSF050509819. Model # JS3BA-30KA. ... Nordyne manufacture date is digits 4 -7 in serial Number = Y-Y-M-M. JSF050509819. bhartley ... Nordyne- Gibson Furnace Serial# kgd050104200 How old is this unit? jmoore5 (Jeffrey Moore, ..., From the serial number, look at the first four digits of the serial number KO 74 - where the format is MM YY for the production month and year. Most likely this unit was made in 1974. Another example, using Inter therm model #HE40-240SH and the Serial # 078318181 we would decode the date of manufacture as MM YY in the first four digits or July ...