The Trane that didn't run

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Old 10-31-05, 07:58 AM
rafleisc
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The Trane that didn't run

Last week during routine maintenance it was discovered that my Trane gas furnace which is less than 10 years old had a crack in the heat exhanger and needed to be replaced. Over the weekend someone mentioned this might have been due to the furnace being too powerful for the house and caused the exchager to overheat and be prone to cracking. As they replaced the Exchanger (under warranty for parts, but not for labor) I don't want to go through this again.....Should I write the crack off to a Lemon Exchanger or might a mis-sized furnace be an issue?
 
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Old 10-31-05, 09:15 AM
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Where are you from? how many sq ft is the home?

How many BTU is the furance? Know if the ducts are sized right?
 
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Old 10-31-05, 03:47 PM
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what size is the return duct? often this is the cause
 
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Old 11-01-05, 03:54 AM
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rafleisc

How does your furnace perform? Does it shortcycle?

Number of KBTUs? Size of home? Area of country you live?

Like Jay said, there could be several factors that contributed to your heat exchanger's failure but most likely just a parts issue since furnace is nearly 10 yrs old.

My opinion.
 
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Old 11-01-05, 11:52 AM
rafleisc
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A Complete Novice

Thanks for the feedback. As I was sure to be exposed as a complete novice anyway, might as well confirm it....
1) How does one measure the size of the return duct...is it length and width?
2) Not sure what "short cycle" means...does that mean does the heater go on and off often?
House is about 2700 sq feet of heated space, not sure of the BTUs on the furnace, will check. Located about 30 miles NW of Boston.
 
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