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Thread: Gas Pressure Regulator question

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    Gas Pressure Regulator question

    I have a question regarding gas pressures for the Hayward H250FDN. We're on 2 psi and I'm going to use a Maxitrol 325-5AL 1 inch regulator. It's taking the 2 psi down to 7-11 inches water column and gives me 300k btu/hr. The manual on the hayward says 10.5 inches water column max inlet pressure. Is this OK or do I need a second press reg to bring it down further to say 4 - 6 inches water column? Or will the reg built in handle the slightly elevated pressure?


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    Join Date
    Apr 2012
    Southern IN

    Re: Gas Pressure Regulator question

    Hi DZM,
    Your regulator should be good as is. It has an adjustable output from 7-11" wc but should come preset to 10"wc. You would not want to reduce the pressure any further as that would cause problems with the burner efficiency.

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    Re: Gas Pressure Regulator question

    Thanks for the info. I'm going as is as the maxitrol website conformed your info.

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