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    geren34's Avatar
    geren34 Posts: 3, Reputation: 1
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    #1

    Nov 26, 2007, 09:37 AM
    Changing from LP to natural gas
    I have a Rinnai 21,000 BTU LP gas ventless space heater and would like to change it to natural gas. Can this be done.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 26, 2007, 12:55 PM
    Possibly. Contact a Rinnai dealer for parts.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #3

    Nov 26, 2007, 01:24 PM
    Most gas appliances come set up for natural gas and have a propane conversion kit included, small orifices. Did you buy it set up for natural gas and then you converted to LP?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    Nov 26, 2007, 01:38 PM
    Quote Originally Posted by ballengerb1
    Most gas appliances come set up for natural gas and have a propane conversion kit included, small orifices. Did you buy it set up for natural gas and then you coverted to LP?
    Rinnai has to be converted usually by a professional because of critical adjustments. This has to do with the oxygen depletion sensor which is a safety device so the heater does not kill you with CO.
    geren34's Avatar
    geren34 Posts: 3, Reputation: 1
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    #5

    Nov 26, 2007, 11:24 PM
    Quote Originally Posted by ballengerb1
    Most gas appliances come set up for natural gas and have a propane conversion kit included, small orifices. Did you buy it set up for natural gas and then you coverted to LP?
    No, it was manufactured that way.
    geren34's Avatar
    geren34 Posts: 3, Reputation: 1
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    #6

    Nov 26, 2007, 11:26 PM
    Comment on hvac1000's post
    It possibly saved me from making a fatal mistake.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
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    #7

    Nov 27, 2007, 07:31 AM
    Yes, go with the professional. There is no margin for error with a ventless heater. If you don''t have a CO monitor, get one.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #8

    Nov 27, 2007, 09:17 AM
    Labman's comment about the CO monitor is right on the money. Even though the heater has an oxygen depletion sensor it is not 100% safe. Get a CO detector, now required by law in many areas.
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