Setting up or upgrading a gas appliance? The right combination of regulator, shutoff valve, and flexible connector keeps your system safe, code-compliant, and running at the proper BTU rating. Below is a quick, practical guide for natural gas (NG) and propane (LP) installs—plus links to shop trusted brands.
| Component | What It Does | What to Look For | Shop |
|---|---|---|---|
| Pressure Regulator | Steps tank or line pressure down to appliance spec. | Capacity ≥ total BTU, correct outlet pressure, vent orientation, NG vs LP model. | Maxitrol Regulators |
| Shutoff Valve | Manual isolation near the appliance for service/emergency. | Full-port, gas-rated, accessible location; check thread type (NPT/flare). | TracPipe |
| Flexible Connector | Connects rigid gas line to the appliance. | CSA/ANSI listed, correct length & diameter, stainless braid, flare ends. | Crown Industries |
| Fittings & Adapters | Transitions between NPT, flare, and appliance inlets. | Brass/steel gas-rated fittings; minimize adapters to reduce leak points. | All Fittings |
Yes—most appliances regulate down to a specific outlet pressure (often ~3.5" w.c. for NG). Many homes have a house regulator; appliances may also have integral regulators. Always match the appliance spec.
Use yellow PTFE tape or a pipe joint compound specifically rated for gas service on NPT threads.
Long enough to pull the appliance out for service without kinking—usually 24–60". Never join multiple connectors together.
LP runs higher pressure and different orifice sizing. Many appliances can be converted with the correct kit; verify your model and follow the manufacturer’s procedure.
Safety first: Gas work may require a permit and must meet local code. When in doubt, contact a licensed gas contractor.
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