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Need to know age of furnace: Model # G1D91AU100D16C---Serial # 8402H16425---just purchased home.

Post created: 2016-03-16 Type of Equipment: Furnace Views: 62

This question was created on the page: https://www.furnacecompare.com/furnaces/armstrong-air/ultra-v-tech-91.html.

On 2016-03-17 Eric wrote:

With an Armstrong furnace the date of manufacture is in the serial number. Based on the number you provided (8402H16425) I believe your furnace was built in August 2002. Below is the breakdown on how I came up with the date. 


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