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Old 1/19/09, 7:08 PM
Brian R. Paull Brian R. Paull is offline
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Default Duo Matic/Olsen age help
I can't find the age of a Duo Matic/Olsen gas furnace:

Model HCS90
Serial 28716HCGNU

Thanks in advance!
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Old 1/19/09, 7:25 PM
Buck Hartley, CMI's Avatar
Buck Hartley, CMI Buck Hartley, CMI is offline
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Default Re: Duo Matic/Olsen age help
I would say 1987.
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Old 1/20/09, 1:50 PM
Russel Ray's Avatar
Russel Ray Russel Ray is offline
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Default Re: Duo Matic/Olsen age help
Quote:
Originally Posted by bpaull View Post
I can't find the age of a Duo Matic/Olsen gas furnace:

Model HCS90
Serial 28716HCGNU

Thanks in advance!
If you're not missing a preprinted prefix on the serial number -- which would be a letter -- then it's a 1971 unit.


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