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Do coils in furnace have to be replaced with outside heat pumps

Post created: 2013-05-20 Type of Equipment: Heat Pump Views: 135

This question was created on the page: https://www.furnacecompare.com/heat-pumps/index.html.

On 2013-05-20 JB wrote:

Yes, the evaporator coil (indoor furnace coil) needs to be replaced when you replace the condenser coil for the following reasons (found here: http://www.climatemakers.com/coil.htm):

1. Impossibility of attaining capacity and efficiency ratings of the new condensing unit if the indoor coil is not changed.

2. The emphasis on "high efficiency" during the past few years has brought about some startling technological changes in equipment. Installing a new high efficiency condensing unit with even a 5 year old indoor coil is inviting trouble.

3. It is very common to have compressor failure in a new unit after just one or two years when an old indoor coil is used. Manufacturers of air conditioners and compressors alike are unanimous in stating that over 63% of the failures of outdoor condensing units are caused by a restriction or refrigerant leak in the indoor coil.

4. The warranty does not protect you from compressor failure due to an old indoor coil. Manufacturers test bad compressors and can tell the cause of failure. If due to a bad coil, they may disallow and void the warranty.

To keep legal happy, let me just say that I am not an HVAC contractor, and you should never even look at your furnace without having a qualified, liability accepting HVAC contractor present.  To keep sales happy, let me just say that you can find an HVAC contractor that's happy to take your money here: http://www.furnacecompare.com/perl/find_contractors.pl.

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