Glad you are safe Dean and family. I've been working on commercial gas appliances for close to 40 years and can't fathom what would cause such a problem. I deal in inches of water column instead of PSI and either way it is very low at 3-5 PSI at the gas valve using what's known as a manometer. It could be as high as 7-10 inches of H2O on the supply line. All appliances have a pressure regulator installed in line upstream of the unit and if I'm not mistaken the meter on my home has a pressure regulator. Obviously the pressure has to be greater for delivery then reduced into the home.
Either way it will be interesting to see what they say caused the problem.
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Wag more- Bark less.
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