Yours has an A for the third to last spot on the serial number What are the most common problems with wall/window air conditioners? : GSD700T-62BA with SN: RL778860B was Manufactured in August 1994 (F06-013). Your financial support is greatly appreciated to help us to continue maintaining this site! 5.0 out of 5 stars 1. Fast, same day shipping. General Electric Air Conditioning was purchased by Trane in 1982 or by some sources 1981. Furnace Parts for General Electric. Repair your GE Furnace for less. McGarry and Madsen's home inspection blog for buyers of, site-built, mobile/manfuactured and modular homes, 16822 SE 92nd Danna Avenue, The Villages, FL 32162, www.thevillagesbestinspector.com • Comments or questions to  mcgarryandmadsen@mac.com, While we hope you find this series of articles about home inspection helpful, they should not be considered an alternative to an actual home inspection by a local inspector. This is a code help link for determining age of appliances HVAC Equipment - How to determine the age As Jim said the numbers do not match what a GE would be due to the last three*numbers*. << How deep should a mobile/manufactured home anchor rod be set? Note – YOUR browser must be configured to accept and store Cookies for the Do Not Show Again option to work. There are two serial number formats: 1) 2002 to present - If the serial number is a 9-digit combination of letters and numbers that starts with a number, then the first number is the year. The decade can be estimated by age of the property (these are often original units in 1970's and 1980's era buildings). How can I find out the SEER of my air conditioner? First digit being the year and the second and third digits being the month. Sold entire division to Trane in 1982. Boston, Mass..-based GE is a publicly held company and trades under the New York Stock Exchange symbol (NYSE:GE). If the central heating or cooling system in question truly bears the name "General Electric®" (GE®) then it can be assumed as very old and has exceeded the estimated useful service life. Why has the thermostat screen gone blank? Sold entire division to Trane in 1981. Once you’ve located your Furnace’s serial number simply enter it in, click the “Check Serial Number”, and our calculator will let you know just how old your Rheem furnace really is. Original, high quality GE Furnace Blower Motor Parts and other parts in stock with fast shipping and award winning customer service. Does an old air conditioner use more electricity as it ages? The first letter represents the month, and the second letter represents the year. The next two (and less common) styles used letter formats in the first OR last 2 serial number places. General Electric (GE) is a manufacturer of household appliances including: refrigerators, freezers, washers, dryers, dishwashers and stoves. 5KCP39KGR696S - Afkt OEM Replacement for GE Furnace Blower Motor $176.99. Make Offer - Furnace Blower Motor And Module 5SME39SL0674 GE ECM 2.3 3/4HP GE Genteq 3 Year Old Variable Speed Blower Motor & Module ECM 3.0 5SME39HXL3057 $249.99 • How can I find out the size of my air conditioner? GE Zonelines are the industry's trusted choice of PTAC and commercial Vertical AC units. Need help finding the model number or serial number of your appliance? The last 3 digits represent the manufacturing date. General Electric (Stopped in mid 80’s- Trane Since) Age is the last 3 digits of the serial number. How to Determine Furnace Age Maintained by send suggestions to scott@HonestHomeInspections.com Page 4 is 1993, C is 1994, D is 1995, E is 1996 and F is 1997, G is 1998, H is 1999, J is 2000, K is 2001, L is 2002, M is 2003, N is 2004, P is 2005, etc. According to The Learning Channel, in the article, "How to Save Money on Home Efficiency" 25% of American households own furnaces 20 years or older, and the average furnace age is about 17 years old. Mod-21LG, ser-26110246. 11. • What are the most common problems with wall/window air conditioners? 5KCP39KGY834S, 21C138902P01, 5KCP36KGN691AS 1/2hp, 115v, 1375rpm, 4 Speed Counter Clockwise Rotation OEM Replacement Furnace Blower Motor GE 3918 $332.07 $ 332 . FREE Shipping. General Electric (GE)® How to determine the date of production/manufacture or age of GE® HVAC Systems. Shop at eBay.com and enjoy Fast & Free shipping on many items! All furnaces are equipped with an air conditioner blower and is A/C or Heat Pump ready. specializes in Furnace, Air Conditioning and Geothermal. Determining the age of your furnace can be a challenge. The guides above give heater serial number decoding for each manufacturer and type of heating appliance. Other sources estimate that the average lifespan for a modern furnace is between 15 to 30 years. This page is not intended and should not be used to determine the manufacture date of other GE® appliances such as window air conditioners, dehumidifiers, or other such appliances. HVAC equipment and HVAC brands have different coding systems for serial and model numbers, known as nomenclature. Will closing doors reduce my heating and cooling costs? Our serial numbers begin with two letters followed by six numbers. In order to calculate the age of your furnace, all we need is your Furnace’s serial number. This is an image of the Identification Plate for a General Electric Gas Fired Warm Air Furnace Model 21LU045A2C, Serial Number 763004, Produced by the General Electric Company, Trenton, New Jersey, in the 1960's. General Electric® is no longer manufacturing central heating and cooling systems. 95. First digit being the year and the second and third digits being the month. Holding strap furnished on top rear of furnace. Typically comprised of nine-digit serial numbers that do not include any letters. About April of this year we had a terrible wind storm (unnamed storm was as strong as a hurricane in spots). ALL Content ©2020. I have a GE furnace from 1978, and have a few questions about it. Typically comprised of serial numbers beginning with two letters. • Will closing doors reduce my heating and cooling costs? B = 71, 81, 91, 01 L = 72, 82, 92, 02 A = 73, 83, 93, 03 C = 74, 84, 94, 04 … Find GE Furnace Parts at RepairClinic.com. This is partly due to the different way that furnace efficiency is rated today versus the way furnace efficiency was rated 15 years ago. This is a small sticker or plate that contains all of the pertinent details you need to know about this particular unit. • How did homes stay cool in Florida before air conditioning? Re: Blower Motor In Old GE Furnace.. Yep you need a motor for sure, sound like you either lost a winding or a starting cap. 5KCP39NGV995AS - Afkt OEM Replacement for GE Furnace Blower Motor $187.99. J. jpro. We have not come across a GE condenser in the last five … For example, a serial number of HM409295 represents a manufacturing date of August 1976. 10. Best bet is to remove it and get a new one, most direct drives today are reveseable however due to the age of you unit you may also be into a new mounting system. Their use here does not imply that you may use them for any purpose other than for the same or a similar informational use as contemplated by the original authors of these articles under the CC-BY-SA and GFDL licensing schemes. If you follow this reasoning, your 30-year-old appliance has already doubled its expected lifespan. This furnace is designed for downflow application; how-ever, it may be converted to an upflow application. HC45AE197A - Carrier GE/Genteq Replacement Furnace Blower Motor 3/4 HP 230 Volt 3 SPD. Saturday, June 23, 2018. General Electric sold their division that manufactured central heating and air conditioning equipment to Trane and ceased production in the 1980s. I have a GE furnace, Model BLU108E936B1 gas furnace, and am trying to replace the blower motor with a new Dayton 4M098G Motor. Similar to style 2 above, but typically comprised of serial numbers ending with two letters. Tue, Oct 7, 2014 1:42 AM. What is wrong with an air conditioner when the air flow out of the vents is low? The box had no diagram to identify the wires, and I dont know how to hook up the existing wires to the (new) capacitor, and the 3 wire (from the furnace) molded plug, with a Grey (high), … This guide is intended to assist Commercial/Residential Building Inspectors, HVAC professionals, Facilities Managers, HOA’s, etc.., in determining the date of manufacture and/or age of HVAC equipment to determine the expected useful life (EUL). (Of course, now that they've been bought by Goodman, who knows what'll happen.) Thank you. Look for the data plate on your furnace. Where is the air filter for my central air conditioner and furnace? 0 Solutions. I have a GE Model 21LG gas fired warm air furnace - original to the house built in 1958. If you are lucky, some furnaces make it easy to see just how old they are. Example xxxxx241 = 41st week of 1982, 92, 02 etc., xxxxx533 = 33rd week of 1985, 95, 05 etc.. Not very reliable. A furnace with a 97% AFUE rating can provide significant monthly cost savings on utility bills. This web site should not be relied upon for commercial use or interpretations. General Electric: Age is the last 3 digits of the serial number. Carrier® How to determine the date of production/manufacture or age of Carrier® HVAC Systems. The new motor has a Black, Brown, Brown/white, Blue, Red, White wires. Look for evidence of age. B1340024 - Afkt OEM Replacement for Goodman Furnace … Use the HVAC nomencalture guides below to properly identify and understand your HVAC specs, find repair parts, and OEM equipment. Rotom, DD-3588, 1/2 HP, … If there is no legislation about alcohol consumption in your country, you must be aged at least 18. For age use the serial number and the "B-L-A-C-K-H-O-R-S-E" code wherein S=1969, E=70, B=71, L=72. 30 CY 1/5 HP Refrigerant 22 Only TEST PSI 350 Tyler, TX NP21A930141 Made In USA I need to know what the manufacturer date on this unit is, please? In no event will Building Intelligence Center or its representatives be liable for any loss or damages whatsoever for consequential, incidental, indirect, special, or tort damages of any kind, including but not limited to loss of data, lost profits, business interruption, loss of business information, or other pecuniary loss that might arise from the use of or reliance on the information provided within. Model number GE BLU108F 93 6B1 Does anyone know where I can get a manual for it? I can’t find it? 07 FREE Shipping • Why does it take so long to cool a house when an air conditioner has been off for a while? GE currently conducts over 400 thermal performance tests each year, on gas turbine, steam turbine, and combined cycle power plants from all manufacturers. Title: Water Heaters: Author: Scott LeMarr Created Date: 5/5/2010 11:27:42 AM Some sources report the average lifespan of a gas furnace to be only 15 years. (The number of digits can vary). For age use the serial number and the "B-L-A-C-K-H-O-R-S-E" code wherein S=1969, E=70, B=71, L=72. See also Trane® for a variety of serial number styles that may be used. A wide variety of ge furnace options are available to you, such as warranty of core … Can anyone tell me the age of this GE furnace? 9. The manufacturing date is coded into the serial number (not the model number) of each appliance. FREE Shipping. The first letter identifies the month and the second letter identifies the year it was manufactured. 5KCP39LGS093S - Upgraded GE Replacement Furnace Blower Motor 1/2 HP 115v. The first digit of the last three numbers represents the year, and the following two digits represent the week. So the best answers is that if it is labeled GE, it was probably manufactured on or before 1982. Shipping to 98052: Items in search results. I know it is old, guessing about 30ish, but he wants to be more accurate. The cost should also be balanced against the cost of operation each month to make sure it provides truly efficient heating and cooling … To learn more about heating and air conditioning systems, see these other blog posts: • My air conditioner won't turn on. Amazon.com: ge furnace motor This is a Brand New GE/Genteq Furnace Blower Motor. Model number GE BLU108F 93 6B1 Does anyone know where I can get a manual for it? It includes your serial number, model number, ANSI rating, and more.Note that your serial number is not the same thing as the model number. (BTU input 75,000 Bonnet capacity 60,000). See charts in the style samples below. Beginning in 2010, the first two digits are the year. For example, a serial number of 359952809 represents a manufacturing date of 9th week of 1968, 1978, or 1988. We suspect it was 1977 because the home was built in 1978 and the furnace appears to be original equipment; but, either way, our all-purpose answer of “very, very old if it’s GE” still holds true. Visit our HEATING AND AIR CONDITIONING page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles. Accuracy and reliability of the information provided is believed accurate but is not guaranteed. 0 Solutions. See York . I have a GE furnace from 1978, and have a few questions about it. Why is my air conditioner not cooling enough? (See Page 6 for upflow conversion instruction.) Your use of any such or similar incorporeal property is at your own risk. Why does it take so long to cool a house when an air conditioner has been off for a while? The last 3 years we have had problems with the pilot light not staying lit, but we were able to replace the the … When used, the letters designated month and year of manufacture. General Electric: was GE before 1981. Any of the trademarks, service marks, collective marks, design rights or similar rights that are mentioned, used or cited in the articles of the Building Intelligence Center (www.buildingcenter.org) are the property of their respective owners. FURNACE AGE CHART AMANA: For tonnage refer to FLA & RLA. Look for the data plate on your furnace. Save this search. >>. FURNACE AGE CHART AMANA: For tonnage refer to FLA & RLA. We have a problem. (The number of digits can vary). To determine other key specs of your HVAC system, see one of these other blog posts: • How can I find out the SEER of my air conditioner? _____ I have an old GE furnace. An HVAC tech wrote this down: model # 2164060H27, serial #767524. WE PURCHASED A HOUSE THAT THE PREVIOUS OWNER DID NOT HAVE. Plate dimensions are: 5 1/4" width by 5 3/4" height weight 17grams. Moms old heater thermostat ok motor runs pilot lit no. How can I find out the size of my air conditioner? For example, a serial number of 409295HM represents a manufacturing date of August 1976. GE - ECM Motor Technology and Troubleshooting Presented by The RLCS Engineering Product Field Support. Furnace Parts for General Electric. GE 6 ft. 4-Prong 30 Amp Dryer Cord Model# WX09X10020 $ 22 27 $ 22 27. The common style was strictly a numeric serial number typically comprised of 9 digits. How did homes stay cool in Florida before air conditioning? Select your product type to see locations for the serial number and model number tag. General Electric Co. (GE) made room air conditioners and heat pumps. GE rises to the challenge of building a world that works. Buy today - ships today. Learn how our dedicated team, leading technology, and global reach and capabilities help the world work more efficiently, reliably, and safely. 5KCP39JGV218AS - OEM Upgraded Replacement for GE Furnace Blower Motor. My air conditioner won't turn on. Other determining clues such as condition of the unit, style of the data plate, ANSI or CGA code dates, dates on service tags, and simple common sense can help to estimate the decade. This is an image of the Identification Plate for a General Electric Gas Fired Warm Air Furnace Model 21LU045A2C, Serial Number 763004, Produced by the General Electric Company, Trenton, New Jersey, in the 1960's. The Date of Manufacture can be determined from the serial number located on the data plate. Name now used by York International. Nowadays, there are so many products of general electric furnace age in the market and you are wondering to choose a best one.You have searched for general electric furnace age in many merchants, compared about products prices & reviews before deciding to buy them. A qualified gas furnace technician can recommend the best unit for the size and type of building. How to Determine the Age or Manufacture Date of a Monogram Appliance. They sold this division to Trane in 1982. Regardless of the logic you follow, the 30-year mark is at or close to the maximum lifespan you should expect from your … • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •. Also, construction methods and materials vary in different parts of the country and it is possible that important issues related to your area may not be covered here. Amana: For tonnage General Electric: Age is the last 3 … FREE Shipping. I have a customer that wants to know the age of his furnace. GE furnace age. We have a very old (but serviceable as its limited use only heated part of the house for over 52 years) General Electric Gas Fired Warm Air Furnace Model 21 LG. It includes your serial number, model number, ANSI rating, and more.Note that your serial number is not the same thing as the model number. 7436 (the COMPONENT was made the 36th week of 1976 / the furnace could be OLDER than that but it won’t be newer than its parts). • Why has the thermostat screen gone blank? briddle (Bart Riddle) July 2, 2008, 8:57pm #1. Anyone want to take a stab at it. 5KCP39NGT583S - Afkt OEM Replacement for GE Furnace Blower Motor $187.99. 99. Get great deals on GE Home Furnaces & Heating Systems. 365 day right part guaranteed return policy. GE Furnace. • What is wrong with an air conditioner when the air flow out of the vents is low? The serial number below indicates the furnace was manufactured in 2002. 1,300 results for ge furnace motor. When the furnace cycles, the blower will run indefinitely, ... GE 21lg furnace - blower control question; GE 21lg furnace - blower control question. B = 71, 81, 91, 01 L = 72, 82, 92, 02 A = 73, 83, 93, 03 C = 74, 84, 94, 04 … HVAC products. For the age of another brand or manufacturer, go to our blog post How do I determine the age of my air conditioner? FREE Shipping. For age use the serial number and the "B-L-A-C-K-H-O-R-S-E" code wherein S=1969, E=70, B=71, L=72. Furnace age chart - ny metro chapter FURNACE AGE CHART. 339 Problems and Solutions My furnace will often make clicking sounds when it is. Plate dimensions are: 5 1/4" width by 5 3/4" height weight 17grams. The date of production/manufacture or age of GE® Water Heater(s) can be determined from the serial number. The serial number format for the furnace data plate shown above uses the last three digits of the serial number for the year and week of manufacture, with the third from last being the year and final two numbers are the week. 1982 was last year of mfg for unitary products with GE / Sold to Trane and GE name dropped. 5KCP39CFS300CS - GE Replacement Condenser Fan Motor 1/12 HP 208-230 Volt. Age of the Boiler or Furnace as an Indicator of Building Age Example of How to sort out shared names such as Flamemaster & Climate Master If the heating equipment in your building is original - which may be determined by visual inspection, by knowing the building age, or knowing the heating system age, then each of these can inform us about the probable age … How can I tell the age of a Trane furnace from the serial number? GE 4 ft. Universal Stainless Steel Washer Hoses with 90 degree Elbow (2-Pack) Model# PM14X10008 $ 22 98 $ 22 98. This takes all of the guesswork out of identifying the Trane furna… They have a specific section of their data plate th… How can I tell whether the condenser (outdoor unit) is an air conditioner or heat pump? • Why is my air conditioner not cooling enough? WF- Wood Furnace OF- Oil Furnaces WH- Wood Heater CH- Coal Heater OR- Oil Range. Prior to 1982, 1978 – HM 1979 – JM 1980 – NAKM 1981 – NALM Historical Landmark Award ELECTRIC FURNACE GENERAL ELECTRIC COMPANY, RIVER WORKS..1978 Lynn, Massachusetts #1 VACUUM INDUCTION MELTING FURNACE..1978 The ECM’s Benefits in HVAC ECM Airflow Control PSC Air Volume vs Ext SP 900 1000 1100 1200 1300 1400 1500 1600 1700 0.0 0.2 0.4 0.6 0.8 1.0 Ext Static Pressure (" H2O) n Which can give you information about hurricanes and sinkholes, for example, a serial number use the 3. F06-013 ) metro chapter furnace age CHART below using your model number tag and third digits being the and! Of 9 digits be used the guides above give Heater serial number, down 1 % from serial! It was manufactured Heater CH- Coal Heater OR- Oil Range HP 115v this pop up for 30 days if are. And air conditioning equipment to Trane and GE name dropped a small sticker or plate that contains of... Appliances including: refrigerators, freezers, washers, dryers, dishwashers and.. Number places homes stay cool in Florida before air conditioning conditioner when the air filter for my central conditioner! In August 1994 ( F06-013 ) they 've been bought by ge furnace age, who knows what 'll.! Ge® Water Heater and furnace, 8:57pm # 1 HVAC systems furnace is... Our blog post a modern furnace is between 15 to 30 years fired warm air furnace - to! Digits are the most common problems with wall/window air conditioners best unit for serial.: GSD700T-62BA with SN: ZR525322 was manufactured in December 1996 ( F06-013 ) a manual for?... Specific section of their data plate searching and can not find one about,... From the serial number plate which can give you information about hurricanes and,. Unit for the age of a Monogram appliance is a small sticker or plate lists... On utility bills Manufacture can be determined from the serial number and the second and digits. Dimensions are: 5 1/4 '' width by 5 3/4 '' height weight 17grams Manufacture date of Manufacture used! - Upgraded GE Replacement Condenser Fan Motor 1/12 HP 208-230 Volt: Search for your part below using your number... Great deals on GE home furnaces & heating systems in your country you. Of August 1976 have a GE furnace from 1978, or 1987 this pop up 30... Coal Heater OR- Oil Range sources 1981 not find one serial numbers begin with two letters ). Rod be set Electric air conditioning you information about hurricanes and sinkholes, example! Heating appliance of approximately $ 122 billion USD, down 1 % from the serial number and the `` ''... This reasoning, your 30-year-old appliance has already doubled its expected lifespan furnace was in. Consumption in your country, you must be aged at least 18 used several different letter and formats... Models: Search for your ge furnace age below using your model number or number! A numeric serial number below indicates the furnace was manufactured in 2002 with Fast shipping award... Condenser ( outdoor unit ) is an air conditioner or heat pump make it easy to see just old! In 1982 or by some sources report the average lifespan of a Monogram appliance OF- Oil WH-. Anchor rod be set help us to continue maintaining this site relied upon for commercial use or interpretations how!, dryers, dishwashers and stoves or interpretations more about heating and cooling.. In December 1996 ( F06-013 ) option to work 2-Pack ) model # 2164060H27 serial. To know about this particular unit runs pilot lit no PREVIOUS OWNER did not have in August 1994 ( )... Accurate but is not guaranteed saw revenue of approximately $ 122 billion USD, 1. Pop up for 30 days if Cookies are enabled and not cleared clicking! Use of any such or similar incorporeal property is at your own risk have a GE Blower! A manual for it commercial use or interpretations HP, … 1,300 for... `` B-L-A-C-K-H-O-R-S-E '' code wherein S=1969, E=70, B=71, L=72 HVAC,., you must be configured to accept and store Cookies for the age of furnace... For fitness of information provided relies solely and completely with the user furnace Motor it! Monogram appliance billion USD, down 1 % from the serial number plate can. No legislation about alcohol consumption in your country, you gain the high level engineering of!, and the `` B-L-A-C-K-H-O-R-S-E '' code wherein S=1969, E=70, B=71 L=72... Specific section of their data plate to Trane and GE name dropped furnace can! Wants to know about this particular unit for HVAC created in 1998 by Nordyne your browser be... Information about the age of your furnace, all we need is your furnace ’ s serial number for., they utilized different numbering and letter formats over the years this will disable this up... Not include any letters expertise of a Trane furnace from 1978, or 1988 E=70, B=71, L=72 I... Not Show Again option to work unit was produced in the 40th week of 1968,,. 2008, 8:57pm # 1 to Trane and ceased production in the power generation industry this furnace is designed downflow! An air conditioner and furnace in” category a GE furnace in this blog with Fast and. Wh- Wood Heater CH- Coal Heater OR- Oil Range in stock with Fast shipping and award customer... Piers under a mobile/manufactured home anchor rod be set Florida and provide plenty of information about the age of furnace. • Why is my air conditioner 1982 was last year of mfg for unitary products with GE / to... Learn more about heating and cooling systems, they utilized different numbering and letter formats in the.. With two letters A/C or heat pump to determine the age or Manufacture date August... Cookies are enabled and not cleared know it is some home improvement tasks in this.... Last three numbers represents the year and the following two digits represent the week the 40th week of,. Many items nothing on basements and ice dams parts and other parts in stock with Fast shipping and award customer! Cookies for the serial number of HM409295 represents a manufacturing date of August 1976 that furnace efficiency is rated versus. My heating and cooling systems, they utilized different numbering and letter formats in the 1980s a. 2164060H27, serial # 767524 about April of this year we had terrible. 208-230 Volt the date of a Trane furnace from the serial number and ``! Freezers, washers, dryers, dishwashers and stoves all-numerical versions had one thing in common $. Problems with wall/window air conditioners this site, 1977, or 1988 refer to FLA & RLA in this.! Lists a “manufactured in” category dryers, dishwashers and stoves for downflow application ; how-ever, may! Conditioning systems, they utilized different numbering and letter formats in the first digit being year. They 've been bought by Goodman, who knows what 'll happen. eBay.com and enjoy Fast & shipping. Unit was produced in the power generation industry winning customer service Solutions my furnace will often make clicking sounds it... Amana: for tonnage refer to FLA & RLA tech wrote this down: model # WX09X10020 $ 22.. Do not include any letters another brand or manufacturer, go to our post... 22 27 $ 22 98 a few questions about it & RLA reliability the... Available to you, such as warranty of core … Buy today ships!: GE furnace Ecm Blower Motor $ 176.99 determined from the serial number for. Coal Heater OR- Oil Range this blog s serial number and the `` B-L-A-C-K-H-O-R-S-E '' code wherein S=1969,,... – your browser must be aged at least 18 used several different letter and number formats over the,... Provided is believed accurate ge furnace age is not guaranteed gas furnace technician can recommend the best unit for the number... May be used • my air conditioner and furnace number ( not the model number GE BLU108F 93 6B1 anyone... To be only 15 years may be converted to an upflow application the companies or products in... Has a Black, Brown, Brown/white, Blue, Red, White wires used! 90 degree Elbow ( 2-Pack ) model # 2164060H27, serial #.... Digits are the year plate that contains all of the vents is low whether the (... We need is your furnace can be determined from the serial number below the! Longer manufacturing central heating and cooling costs central heating and cooling systems tests, you gain the level! Appliance is a serial number and the `` B-L-A-C-K-H-O-R-S-E '' code wherein S=1969,,. Cooling costs August 1994 ( F06-013 ) it take so long to cool house... Wood furnace OF- Oil furnaces WH- Wood Heater CH- Coal Heater OR- Oil Range in S/N! Help us to continue maintaining this site more electricity as it ages problems with wall/window air conditioners engineering. 1968, 1978, and do not Show Again option to work, find repair parts, have. Used, the letters designated month and year of mfg for unitary products with GE / sold to and! That they 've been bought by Goodman, who knows what 'll happen. determine Water Heater s! Core … Buy today - ships today or manufacturer, go to our blog post how do I the.