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I have a Comfortmaster Heater Mod# GDE125J20A1 and can't seem to figure out where a filter goes on the unit. Any idea?

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  • aaronmaxkend Feb 03, 2009

    yes it is in an indoor closet

  • aaronmaxkend Feb 03, 2009

    Yes, that is exactly how it works.

  • aaronmaxkend Feb 03, 2009

    I have filters in the cold air returns. My question is should there be on in the unit also?

  • aaronmaxkend Feb 03, 2009

    Thanks, you are the BEST! I just wanted to verify before diving into the *&%^&*# top of the unit!

  • Ken Bledsoe May 11, 2010

    Does the return air come from the top? And the supply air go out the bottom?

  • Ken Bledsoe May 11, 2010

    Is this unit inside a closet?



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Okay the filter on your unit is on top where the duct work connects to the air handler. Should have a panel in the front that will have to remove the flue pipe is right in the middle of it so will have to work around it. The filters are located across the top might be laying flat or at a small angle. On these type of units they are not very easy to change out.

Now in the event that the filters are not there look in the return grills in the ceiling might only have one they put the filters there also.

let me know how it goes. You will need something to stand on to access either place. ken

Posted on Feb 03, 2009

  • Ken Bledsoe Feb 03, 2009

    No that is the filters that the unit uses. you will be glad that they are in those returns as on the unit it self would be a pain in the _______tt to change out every 2 months or so.



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