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    tornado294's Avatar
    tornado294 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Sep 26, 2007, 03:07 PM
    What can be done
    I have a 100,000 BTU furnace heating a 1350 sq ft home. It is a 92.3% efficient unit. My question is, can you stop two of the orifices so it will not be so hot while the unit is running.
    It only had a 75,000 old unit (20 Years old). Now it is so uncomfortable.
    wheatnbarley24's Avatar
    wheatnbarley24 Posts: 63, Reputation: 3
    Junior Member
    		  
    #2

    Sep 26, 2007, 07:04 PM
    Most 90% furnaces should be set up to run as a two stage heat furnace
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #3

    Sep 26, 2007, 09:01 PM
    It really depends upon exactly which style of high efficiency furnace. Usually you cannot just plug off burners. I would have a professional service person check your unit on site to see what can be done. It would be foolish to try and give you a firm answer on a forum like this. To dangerous just to play with. Sorry.
    tsa7man's Avatar
    tsa7man Posts: 154, Reputation: 9
    Junior Member
    		  
    #4

    Oct 16, 2007, 05:42 AM
    As hvac1000 stated... you should by all means get a heating contractor to look at your unit. Some brands have de-rating kits that will drop the orifice size to run the unit at lower factory tested and approved BTU/hr input ratings... as well as other adjustments that have to be performed... way beyond this sites direction for advise... see a professional for your issue.
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