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brand name of a furnace built in 1972

Drumsjoe93's picture

Hello.  I have a furnace that's 41 years old.  I haven't seen any identifier of the brand name, except for the letters 'GH'.  Anyone know what this may stand for?

 

thanks a lot,

Drumsjoe

Did you take off the front (post #208956, reply #1 of 2)

Did you take off the front cover and look for labels inside?


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville