Monessen Lumonessen Ventless Outdoor Gas Burner
Free delivery to contiguous U.S. + free 30-day returns. Est. arrival: Feb 19–1
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Installation
Installation
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Description
Description
Simplify Your Outdoor Fireplace Installation
The Monessen Lumonessen Gas Burner is a vent-free outdoor burner designed for LP or natural gas use, offering easier installation without traditional venting requirements.
Built for Vent-Free Outdoor Fireplaces

Designed specifically for vent-free outdoor applications, the Lumonessen burner eliminates the need for chimney or venting systems. This streamlines installation and can reduce construction complexity compared to traditional vented setups.
It is compatible with the Majestic Vesper Firebox, making it a direct solution for completing a ventless outdoor fireplace system.
Flexible Fuel Options with Reliable Heat Output
The Monessen Lumonessen burner is available in liquid propane or natural gas configurations, allowing you to select the fuel type that best fits your existing setup.
With up to 38,000 BTUs of heat output, it provides substantial warmth and flame presence for outdoor environments while maintaining straightforward operation.
Installation Options
The Lumonessen Gas Burner is designed for vent-free outdoor fireplace installations and is compatible with the Majestic Vesper Firebox. Because it is vent-free, no chimney or external venting system is required.
Professional installation is recommended to ensure proper gas connection and safe operation in accordance with local building codes.
Controls & Features
This gas burner operates on either liquid propane or natural gas, depending on the selected configuration. Its vent-free design simplifies setup and supports a clean outdoor fireplace presentation.
The burner is engineered to deliver up to 38,000 BTUs of heat output, providing consistent flame performance in outdoor applications.
Specifications
Specifications
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InstallationOutdoor, Insert, Ventless
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BTU's
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CertificationsCSA Certified, UL Listed
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Warranty
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Weight
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Manuals

