Choosing new furnace...

3 years ago

I am looking to replace a 20-year-old American Standard furnace. Recently, the control board went and was replaced with a used one as a work-around. In the meantime, I've received quotes to have the unit replaced and have narrowed it down to the following:

Carrier 59TN6B (specifically model 59TN6B060C17--14)

Trane S9V2B060U4

The current furnace is 80% efficient and 80,000 BTUs. Both of these units are available through the same contractor. The Trane is a bit more expensive than the Carrier. Our central A/C unit is from 1999 and uses R-22. I will ONLY be replacing the furnace at this time. That said, I'd appreciate any feedback on which unit to select.

Home is about 1,120 sq feet located in NE Ohio. The upstairs is always warmer in summer and has no cold air returns. Thank you.

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Comments (5)

Stax
3 years ago
Have you considered replacing your A/C with a Heat Pump if required?
HU-134876982
Original Author
3 years ago
I have NO desire to use a heat pump. Father had one and that thing could be a PITA when it was really cold (out).
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mike_home
3 years ago
The two furnaces are similar. You would have to study the product brochures to determine if one has an advantage over the other. I would think a 60K BTU furnace is over sized for a 1,120 sq ft. house.

WIll the contractor be disconnecting the coil while installing the furnace? If so there is a high probability a refrigerant leak will develop. If you plan to live in this house another 5 years you should consider replacing the AC condenser and coil when the furnace is replaced.
sktn77a
3 years ago
last modified: 3 years ago
Looks like they are basing the replacement furnace size on the original. All of them seem to be way too big unless you live in the arctic or have no windows or insulation! Have them justify the size selection with a heat loss calculation, not just the size of the old unit.
mike_home
3 years ago
If the current AC is being kept, then the blower motor of the furnace has to be sized to match the number of cooling tons. This limits the size reduction of the furnace.