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    dumbo9's Avatar
    dumbo9 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 7, 2012, 08:13 PM
    Is there a way to determine if water heater has been converted from nat gas to propan
    I bought a o smith water heater at a builders auction. The spec sheet on the unit says natural gas. The auction says it is propane. Is there an easy way to find out which it truly is?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Nov 7, 2012, 09:15 PM
    Look at the gas valve, it should say. If it has been changed by someone and not marked, you will need to measure orifice and manifold pressure.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Nov 8, 2012, 07:48 AM
    Changing a gas water heater from natural gas to Propane is a easy job. You simply swap one orifice for another. Purchase the orifice you need and change it out. Good luck, Tom
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #4

    Nov 8, 2012, 04:23 PM
    Quote Originally Posted by speedball1 View Post
    Changing a gas water heater from natural gas to Propane is a easy job. You simply swap one orifice for another. Purchase the orifice you need and change it out. Good luck, Tom
    How about pressure regulation?
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