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ECA G6RC040*-12A Furnace

The ECA G6RC040*-12A is a natural gas furnace. Its efficiency rating of 92.1% AFUE makes it a high-efficiency model. The first year that this furnace appears in our records is 2002.

This same model of furnace is marketed under the Eca, Intertherm, Kelvinator, Miller, Philco, and Thermal Zone brands.

Brand: ECA
Manufacturer: NORDYNE
Model Number: G6RC040*-12A
Fuel: Natural Gas
Input Capacity: 40,000 BTUH
Output Capacity: 37,000 BTUH
Efficiency: 92.1 % AFUE
Energy Star Qualified: No
Air Flow Configuration: Up
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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