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brand name of a furnace built in 1972

Drumsjoe93 | Posted in Energy, Heating & Insulation on

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

Replies

  1. DanH | | #1

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

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