Best Natural Gas Conversion Kits for Grills and Griddles

If you want to ditch propane tanks and switch your grill’s fuel to natural gas, these conversion kits simplify the process. They’re best for backyard cooks who want uninterrupted grilling, reduced refills, and a cleaner setup. The top picks below cover a range of popular brands and grill types, from built-in Spire models to Blackstone griddles and Weber-style grills. This guide highlights who each kit is best for, along with clear pros and limitations to help you decide.

Summary of chosen products:

Product Best For
Spire Natural Gas Conversion Kit Spire models 740-0781P, 740-0788P, 720-1143B and KA variants
Blackstone 5249 Propane to Natural Gas Kit Blackstone 28″ and 36″ griddles
GasXpert 12 Feet Conversion Kit KitchenAid grills and similar propane-to-NG setups
Lamudo From Propane to Natural Gas Kit Weber Genesis family and Spirit II series
Sekvira Weber NG to LP Kit Weber Genesis and Spirit II families

Spire Natural Gas Conversion Kit for Grills

Spire Natural Gas Conversion Kit for Grills

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Reference features: Flexible conversion from propane to natural gas without tank swaps; compatible with Spire models 740-0781P, 740-0788P, 720-1143B and KA variants (as listed). The kit enables a straightforward transition to NG with a 10 ft hose and regulator included in the package.

Best for: Owners of Spire grills who want a direct, model-specific NG conversion without modifying hardware beyond the kit. It’s chosen for its wide compatibility within Spire’s current line and KA conversions.

Limitations: Data notes a broad KA compatibility, but verify exact model alignment with your unit before purchase. Ensure your gas line outlet pressure matches the regulator’s requirements.

5249 5395 Natural Gas Conversion Kit for Blackstone Grills

Blackstone 5249 Natural Gas Conversion Kit

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Reference features: 10 ft 3/8″ natural gas hose, 3/8″ quick connect, natural gas orifices, 2 thread check gauges, and a 7mm orifice wrench. Compatible with Blackstone 28″ and 36″ griddles and associated tailgater or rangetop setups.

Best for: Blackstone griddle owners who want a complete, ready-to-connect NG conversion with included gauges and fittings. It’s especially suitable for standard and omnivore top configurations.

Caution: Use only with compatible Blackstone models listed; verify hose and fitting specs to ensure a proper seal and gas pressure.

GasXpert 12Feet Natural Gas Kit for KitchenAid Grills

GasXpert Natural Gas Conversion Kit

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Reference features: 12-foot natural gas conversion kit with 3/8″ female flare by 1/2″ male flare brass adapter; includes quick disconnect fittings and a regulator. Designed for KitchenAid and similar grills, with flexibility across multiple NG/LPG setups.

Best for: KitchenAid and similar brand grills that require a versatile length hose and easy connection options for natural gas use. It’s the go-to for users wanting a longer reach and adaptable fittings.

Caution: Confirm that your grill model is compatible with the included orifices and adapter configuration to ensure safe operation.

Lamudo Propane to Natural Gas Conversion Kit for Weber

Lamudo Weber NG to LP Conversion Kit

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Reference features: Comprehensive kit for Weber Genesis, Genesis II, Spirit, and Spirit II lines; includes 10 ft 1/2″ hose, orifices, regulator pre-installed, quick disconnects, fittings, and tools. Claims broad compatibility with many Weber models, including Spirit II and Genesis families.

Best for: Weber grill owners seeking a complete NG-to-LP solution with a long hose and pre-installed regulator, designed to simplify installation.

Caution: Some model coverage may be broad; verify your exact Weber model and required orifice size before purchase.

Sekvira NG to LP Conversion Kit for Weber Genesis

Sekvira Weber NG to LP Conversion Kit

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Reference features: Includes a 5ft propane regulator hose, 14 hand-drilled LP orifices, two 3/8″ fittings, a wrench, and sealing tape. Wide compatibility with several Weber Genesis and Spirit II models and a focus on flame stability. Designed to convert from NG to LP or reverse with suitable orifices.

Best for: Weber Genesis and Spirit II owners who want a precise, drill-sized set of orifices for stable flame control and convertibility between gas types.

Caution: Check that the kit’s orifice sizes match your grill’s BTU needs; incorrect sizing can impact flame stability.

Buying Guide: Key Purchase Considerations

  • Grill compatibility: Verify model numbers and make sure the kit includes the correct orifices and fittings for your grill family.
  • Length and fittings: Consider hose length (6–12 ft typical) and whether quick-connect fittings are included or required.
  • Regulator and pressure: Confirm the regulator type matches your home natural gas line pressure and that it’s pre-installed when possible.
  • Material and durability: Look for corrosion-resistant components, especially brass fittings and hoses with braided or reinforced structures.
  • Safety and certification: CSA or equivalent certifications add a baseline for safety in gas connections.
  • Future-proofing: If you plan to switch among brands, choose a kit with wide compatibility or one that supports multiple model families.

Frequently Asked Questions

  • Are natural gas conversion kits universal for all grills? Not always. Many are model-specific or brand-specific; always verify compatibility before purchase.
  • Do these kits require professional installation? Some installations are straightforward for confident DIY users, but for high-pressure gas work, consider professional installation.
  • Will switching to natural gas affect grill performance? Properly sized orifices and correct regulator setup help maintain stable flame and BTU output comparable to propane use.
  • Can I revert to propane after converting to natural gas? Reverting usually requires different orifices and setup; some kits are single-direction, so verify return options if needed.
  • Is a longer hose better for NG conversion? A longer hose provides flexibility, but ensure it remains within safe reach and does not create tripping hazards or kinks.
  • Are there safety considerations with gas hoses outdoors? Keep hoses away from heat sources, secure connections, and inspect for wear or cracking regularly.