Answering the question: a propane conversion kit lets you switch certain engines or grills from natural gas or gasoline to propane, offering easier fuel storage, improved availability in emergencies, and potentially simpler long-term maintenance. This guide highlights five well-rounded options, with clear guidance on who each kit is best for. Use the product sections to compare suitability, installation needs, and practical trade-offs for your setup.
| Product | Best For | Notes |
|---|---|---|
| GRENERY EU2000i Tri-Fuel Conversion Kit | Portable generators and emergency back-ups | Out-of-the-box propane capability; no carburetor modifications required |
| Impco 22R Engine Propane Conversion Kit | Off-road and heavy-use engines | Complete straight propane conversion for 22R engine |
| BLACKSTONE 5249 Propane to Natural Gas Kit | Outdoor griddles and grills | Natural gas to propane safety and fit for standard griddles |
| Sekvira Weber NG to LP Kits | Weber Genesis/Spirit grills | Specific nozzle sizes for BTU matching |
| BBQHKCX 5249 Natural Gas to Propane Kit | Blackstone griddles and outdoor cookers | Comprehensive kit with hoses, orifices, and safety components |
GRENERY EU2000i Tri-Fuel Conversion Kit for Honda Generator
Best for portable generators. The GRENERY kit is designed to let a Honda EU2000i-series inverter generator run on propane, natural gas, or gasoline. It ships as a complete kit and is preset to propane out of the box, with no factory carburetor modifications required. This makes it a practical option for emergency preparedness and mobile power needs where propane or natural gas is more accessible than gasoline. The kit also emphasizes carburetor-friendly long-term storage by reducing fuel residue and gumming risk. Cautions include ensuring compatibility with the generator model and confirming local fuel availability when switching fuels.
- Best for: Home emergency kits, portable power users, and remote work sites.
- Why selected: All-in-one tri-fuel capability with straightforward bolt-on installation.
- Limitation: Priming and switch procedures must be followed to avoid running issues.
Impco 22R Engine Complete Propane Conversion Kit
Best for off-road vehicles and rock crawlers that use the 22R engine platform. This kit provides a complete straight propane conversion for the 22R engine and is designed to integrate with the existing throttle plate. It suits enthusiasts who want a dedicated propane setup for rugged environments. A potential limitation is model-specific compatibility; verify fitment with your 22R engine before purchase.
- Best for: Off-road builds, rock crawlers, and utility vehicles with 22R engines.
- Why selected: Straight propane conversion tailored to a specific engine family.
- Limitation: Not a universal solution for all engine types.
BLACKSTONE 5249 Propane to Natural Gas Conversion Kit
Best for outdoor griddles and portable cooktops. This kit includes a complete natural gas conversion setup for Blackstone 28″ and 36″ griddles, with a 10-foot natural gas hose, quick-connect fittings, orifices, gauges, and other essential tools. It supports natural gas operation on compatible Blackstone grills and is designed for leak-free long-term use with a CSA-certified hose. Consider compatibility with your specific griddle model and the maximum BTU rating when deciding.
- Best for: Blackstone griddles and tailgating setups.
- Why selected: Comprehensive kit with everything needed for a natural gas to propane shift.
- Limitation: Not compatible with all Blackstone models.
Sekvira Weber Spirit NG to LP Conversion Kit
Best for Weber Spirit II grills. This kit is tailored for Weber Spirit II 310/315 models and includes a 5-foot propane regulator hose, 14 LP orifices, fittings, a wrench, and gas-rated tape. The design emphasizes precise BTU matching for flame stability and consistent cooking performance. The main caution is model specificity—ensure your Weber model aligns with the kit’s offerings and nozzle sizes.
- Best for: Weber Genesis and Spirit II grills that operate on or need propane compatibility.
- Why selected: Model-specific design with attention to BTU balance for stable flame performance.
- Limitation: Not universal across all Weber models beyond those listed.
JNWYXIE Natural Gas To Propane Kit For Weber Spirit
Best for Weber Spirit II 310/315 and E310/E210 grills transitioning to propane. This kit includes a CSA-certified 90-degree propane regulator, a 5-foot hose, LP orifices, a wrench, and Teflon tape. It focuses on delivering steady flames and even heat with properly matched LP orifices for reliable backyard grilling. The limitation to watch is model specificity; verify compatibility with your exact Weber grill model before purchase.
- Best for: Weber Spirit and related models needing reliable propane performance.
- Why selected: Emphasizes flame stability with precisely matched orifices and regulator.
- Limitation: Not a universal Weber compatibility solution.
GRLP4 LP Conversion Kit for Ranges and Cooktops
Best for kitchen ranges and cooktops that need a natural gas to propane conversion. The kit includes 12 brass orifices for precise BTU control and clear interchangeability with several GRLP4-type LP conversion setups. It’s particularly suitable for Frigidaire, Kenmore, Electrolux ranges and cooktops. The main caveat is ensuring your model uses a GRLP4-type configuration to avoid mismatches with gas flow and orifice sizing.
- Best for: Gas ranges and cooktops seeking propane compatibility.
- Why selected: Broad compatibility with common GRLP4-style appliances and proven orifice precision.
- Limitation: Not a fit for non-GRLP4 configurations or non-compatible brands.
Buying Guide: Practical Considerations for Propane Conversion Kits
- What is the intended use? Choose a kit that matches your primary device—generator, grill, or stove—to ensure proper fuel compatibility and BTU ranges.
- Model compatibility and fit. Many kits are designed for specific engines or models (Weber Spirit, Weber Genesis, Blackstone griddles, etc.). Verify exact model numbers before purchase.
- Orifice sizing and BTU matching. Accurate LP orifices are critical for stable flame and even heat. Hand-drilled orifice sets are common; ensure sizes align with your appliance’s BTU needs.
- Hose length and fittings. Confirm hose length, regulator type, and quick-connect or NPT fittings suit your setup to avoid leaks or installation issues.
- Safety and leak prevention. Look for CSA-certified hoses and brass fittings. Proper tape and sealing compounds should be gas-rated and compatible with propane.
- Installation complexity. Some kits are bolt-on with minimal carburetor modification, while others may require more extensive changes. Consider whether professional installation is needed.
- Availability and accessories. A complete kit often includes hoses, orifices, wrenches, and tapes. Check what’s included to avoid buying missing parts separately.
Frequently Asked Questions
- What is a propane conversion kit used for? It enables devices designed to run on natural gas or gasoline to operate on propane, providing flexibility and sometimes better storage options for fuel in emergencies.
- Are propane conversion kits universal? No. Many kits are model- or brand-specific, so verify compatibility with your exact appliance or engine model.
- Do these kits require professional installation? Some are bolt-on and simple, while others may require more detailed tuning or professional assistance to ensure safe operation.
- Will using propane harm my appliance? When used with a correctly matched kit and proper installation, propane is designed to operate within the device’s BTU range. Always follow manufacturer guidelines.
- Can I switch back to the original fuel after installing a propane kit? Many kits allow switching back, but you should follow the kit’s instructions to avoid fuel-system issues and ensure safe operation.
- What safety features should I look for? Leaktight fittings, certified hoses, proper venting recommendations, and clear instructions for safe connection and disconnection are essential.