Natural Gas Line Pressure Dashboard

The default band is ≈21 mbar (about 8 in WC) nominal for many domestic/commercial natural-gas appliances. Treat it as a sensible starting point — your own specification, regulator, equipment manual or product datasheet sets the authoritative limits, and you can read your true band straight off the worst case those documents allow. Edit the readings against whatever band applies to you.

Burners are engineered for a specific inlet pressure to mix gas and air in the right ratio. Too low and the flame starves — incomplete combustion that wastes fuel, sooks up heat exchangers and produces dangerous carbon monoxide. Too high and the appliance over-fires, overheating and stressing components. Many appliances have a working pressure range on their data plate, measured 'dynamic' (running) not just 'static' (off). This is strictly a job for a licensed/registered gas professional with calibrated instruments — monitoring here is informational only, and a CO alarm is non-negotiable.

Match the interval to the consequence and the rate of change: where an excursion spoils product or risks safety, log continuously (or as often as you can sample); where it is merely informative, daily or per-shift spot checks suffice. The in-range % and excursion count only mean something if your sampling is regular — sparse, irregular readings hide the excursions between them.

Yes — every reading is stored in this browser's localStorage on your device and nothing is uploaded to any server, which also makes the dashboard usable on sites with strict data policies. For shared, audit-grade records across a team or for regulatory retention, export the values into your own system.