Purchasing an older home with an existing furnace can be a worry; a furnace often needs replacing after 15 to 20 years, so knowing its age is helpful in determining if a new furnace should be in the budget. Newer units may have a manufacturer's date listed somewhere on the furnace; older furnaces require a bit more digging by looking at the serial number, which tells the manufacturer various pieces of information, including the age.
Furnaces come in different efficiencies measured in AFUE. Once in a while, things don't work quite right and you need to troubleshoot a gas furnace repair or relight a standing pilot if it has one. Conventional furnaces may have electronic ignitions, which need special troubleshooting. How old is a model GSU110AF Moncrief furnace, s/n 222? Posted by thoblet on Mar 20, 2010. Actually a used furnace, especially an oil one isn't worth a whole lot, except to the right person. PDF Manual Portable AC Manual.pdf. Midea MPM-08CR-BB4.
![Parts Parts](/uploads/1/2/5/4/125412114/957480134.jpg)
![Oil Oil](http://s3-production.bobvila.com/blogs/wp-content/uploads/2013/02/Leakyfurnace-hankeyandbrown.jpg)
Finding the serial number, however, may also require a bit of sleuth work.
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For license and copyright information related to these materials please click. Please note that all publications presented here at Automatic Ephemera are on average between 35 and 85 years old. This information is presented as a educational/historical reference on vintage products of the past. Any trademarks or brand names appearing on this site are for nominative use to accurately describe the content contained in these publications.
The associated trademarks are the sole property of their registered owners as there is no affiliation between Automatic Ephemera and these companies. No connection to or endorsement by the trademark owners is to be construed.