Mounting older counterflow gas furnace sideways

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Old 02-14-11, 02:49 PM
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Mounting older counterflow gas furnace sideways

Does anyone know if it's okay to mount an older counterflow natural gas furnace on its side? I know the newer units are okay sideways, but not sure about the older ones. I just pulled a working unit out of a repo house I'm renovating and considering reusing this furnace in my workshop.

The furnace is approximately from 1988, 80+ power vented natural gas, 3" vent, I believe 80k btu. Squirrel cage works good, induction blower works good, burner seems to work good. I would basically hang it from the ceiling with none or minimal ducting other than a filter rack on the intake.
 
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Old 02-14-11, 02:59 PM
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Some counterflows can be turned sideways, some can't. A make, model, & serial number might help.
 
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Old 02-14-11, 10:02 PM
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The plate on the front panel reads "Kenmore Power Miser 80".

The label inside the service compartment:

Manufactured by HQCO Lavergne, TN
Model No.: NDGE050AD01 867.768310
Ser No.: L904533254
Input BTU: 50,000

There is also a wiring diagram and a number of basic safety and operation stickers, but nothing regarding installation or mounting orientation.
 
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Old 02-15-11, 06:43 PM
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Most HQ counterflow units are made to be installed as counterflow only. The newer ones with an 'M' in the model number are multi-position. Your's was made in 1990, 45th week.
 
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Old 02-15-11, 09:30 PM
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Thanks for the info Grady. I think I might pass on this one and keep my eye out for a better unit.
 
 

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