Looking to convert or upgrade a gas fireplace setup? This guide highlights practical conversion and upgrade options for common gas fireplaces, ideal for off-grid homes, living rooms with vented or ventless systems, and homes undergoing remodeling. The selections cover LP conversion kits, burner systems, gas log sets, and ventless log kits. Each option targets a specific need—propane-only installations, NG compatibility, or a more realistic gas-fire appearance. The top picks below are best for homeowners seeking reliable flame control, easier installation, and durable performance in typical American homes.
| Product | Type | Best For | Notes |
|---|---|---|---|
| LP Conversion Kit for Frigidaire FC GC PC Gas Ranges | LP Conversion Kit | Off-grid or propane-only installations | Propane-ready; not for 18000 BTU burners; model compatibility listed |
| RealFyre Peterson 24″ G4-Burner-System (NG) Natural-Gas | Gas burner system (NG) | NG fireplaces or upgrades to gas burner systems | Includes burner, grate, embers; control valve not included |
| Midwest Hearth Gas Log Lighter/Starter, Wood Burning Fireplace, NG | Gas log lighter starter | Wood-burning fireplaces converted to gas with lighter kit | Universal fit; adjustable air/fuel mixer; compatible with NG/LP variations |
| HearthSense MO24HVL Natural Gas Vented Logs Set | Vented gas logs set | Vented masonry or firebox with open flue | 55,000 BTU; realistic logs; requires open flue |
| EROMMY 24 Inch Ventless Fireplace Logs Set | Ventless gas logs set | Ventless natural gas fireplace upgrades | Ventless; heats up to 1,100 sq ft; remote control features |
LP Conversion Kit for Frigidaire FC GC PC Gas Ranges

Best For: Homeowners needing propane-ready conversion when natural gas isn’t available or has been removed. This kit targets Frigidaire/Electrolux FC/GC/PC series models listed, replacing specific AP numbers to enable LP operation. It supports stable blue flames with precision-brass orifices to reduce sputter and carbon buildup. Choose this if your installation is propane-first and you have compatible Frigidaire models.
Limitation: Not compatible with 18000 BTU burners; verify your model against the listed fit models before purchase.
RealFyre Peterson 24″ G4-Burner-System (NG)

Best For: Upgrading a Natural Gas fireplace with a robust burner system that delivers strong, realistic flames. It includes a natural gas burner, custom grate, silica sand, glowing embers, and a gas flex-line kit. It uses a match-light style operation via your existing key valve to control gas flow. This is a solid choice when you want a reliable, high-BTU NG flame setup without adding a complete log set.
Caution: The kit does not include a control valve, so confirm compatibility with your fireplace’s valve setup or source a compatible valve separately.
Americangaslos 18″-24″ Burner Pan with Valve

Best For: Direct replacement for Real Fyre G45 burner sets, offering an identical performance upgrade with a complete set (burner pan, glow embers, copper connections, remote options). It suits homeowners converting or upgrading to a more complete gas-log configuration without changing the entire fireplace structure.
Limitation: Availability and compatibility depend on the original Real Fyre components and connection hubs; verify end-to-end compatibility with your existing system.
HearthSense MO24HVL Natural Gas Logs Set

Best For: Vented fireplaces that require a realistic log set with open flue. This 24-inch MO24HVL kit provides a 55,000 BTU output and multiple-log realism with an U-burner design to emulate authentic flame patterns. It’s suitable for masonry or vented fireboxes and pairs with a full vented chimney system.
Limitation: Requires a fully functional vent and open flue during operation; not suitable for ventless setups.
EROMMY 20 Inch Ventless Fireplace Logs Set

Best For: Ventless natural gas fireplaces needing a compact 20-inch burner option. This kit uses a ventless design to heat spaces up to about 1,000 square feet and includes a remote control with thermostat and auto-shutoff features. It combines a realistic log appearance with convenient operation.
Limitation: Ventless operation depends on local codes and room ventilation; confirm venting requirements for your home before installation.
Buying Guide
What should I consider when converting a gas fireplace?
Key factors include fuel type (NG vs. LP), venting requirements (vented vs. ventless), compatibility with existing fireplace components, BTU output, and installation ease. Choose upgrades that align with your home’s gas supply and safety standards.
Natural gas vs. propane options—which is better?
Natural gas is typically cheaper and steady in many homes, but propane may be necessary for off-grid or propane-only installations. LP kits are designed for propane supply, while NG burner systems are built for natural gas pressure and flow.
Ventless vs. vented logs—what’s the practical difference?
Ventless logs are simpler to install with no chimney but rely on room ventilation and local codes. Vented logs require an open flue and suitable chimney but generally offer a different flame pattern and heat distribution profile.
Is a burner system or a log set better for aesthetics?
Burner systems focus on flame control and BTU performance; log sets emphasize visual realism with embers and log shapes. For a more authentic look, pair a realistic log set with a compatible burner system.
What installation limitations should I expect?
Some kits require professional installation, gas-valve compatibility, and exact model matching. Always verify model numbers, flame control options, and clearance requirements before purchasing.
What safety checks are important post-install?
Ensure gas connections are leak-tested, ventilation is effective, and flame appearance is blue and steady. If you notice yellow tips or sputtering, reassess the burner size, gas supply, or valve alignment.
Frequently Asked Questions
- Can I convert any gas fireplace to LP? LP conversion is possible when a compatible kit is available for the model and gas supply is propane. Always verify model compatibility before purchasing.
- Do I need a professional to install these upgrades? Installation complexity varies. Some kits require minimal changes, while others need valve adjustments or venting considerations. Check local codes and manufacturer recommendations.
- Which option provides the most realistic flame? Realistic flame effects come from burner systems combined with well-designed log sets, especially those with multi-row flame patterns and glowing embers.
- Are ventless logs safe for everyday use? Ventless logs are designed for intermittent use and require adequate room ventilation. Follow manufacturer guidelines and local codes for continuous operation.
- Will these upgrades affect heat output? BTU ratings determine heat output. Propane and natural gas options differ in efficiency; choose a solution that matches your heating needs and space size.
- Can I mix and match components? Mixing non-compatible components can affect flame quality and safety. Use components designed to work together for your specific fireplace model.