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TRANE TDX060C936D* Furnace

The TRANE TDX060C936D* is a natural gas furnace. Its efficiency rating of 91% AFUE makes it a high-efficiency model. The first year that this furnace appears in our records is 2002.

Brand: TRANE
Manufacturer: TRANE UNITARY PROD. GROUP
Model Number: TDX060C936D*
Product Family Name: XR 90
Fuel: Natural Gas
Input Capacity: 60,000 BTUH
Output Capacity: 56,000 BTUH
Efficiency: 91 % AFUE
Energy Star Qualified: yes
Air Flow Configuration: Horizontal and Down
Electrical Phase: Single-phase
Combustion Type: Condensing

High efficiency furnaces are also known as "condensing" furnaces. This is because the gases generated by the furnace's initial combustion are forced through a series of pipes, where they give up more and more of their heat. Eventually, these gases cool enough that their water vapor condenses into liquid water, and is discarded. The extra efficiency of these furnaces is due to their ability to capture heat during this "condensing" phase.

One disadvantage of condensing furnaces is that they need a drain to discard the (often quite acidic) condensed water that is generated as the furnace extracts heat from water vapor.

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