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Ruud Furnace needs replacement

I have a RUUD UGDA-075A-CR furnace that was made in March of 84. In the process of home improvement, I want to replace it, and I had a few people come by and size a replacement with a 70,000 btuh, 80% AFUE model.

My worry is that since theres NO information to be found on the existing furnace, I dont know if Im going smaller in output btuh, or if that even matters for the 5000 btu difference.

I just want to ensure it will be the right size. Does anyone know how efficient the old unit will be? The replacement is a goodman furnace model GMH80703AN

Thanks in advance for any help!

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What part of the country?
How many square feet in the house?
Insulation?
Single pane glass?
Many factors should be considered by a professional.
However if the old unit worked OK, a new 80% 70,000 unit will most likeley replace a 24 year old 60-70% 75,000 unit.

Posted on Dec 16, 2008

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Posted on Jan 02, 2017

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