Monessen Hearth Solstice Vent Free Gas Insert

Starting at $1,519

The Solstice vent free gas insert quickly and easily turns an old, wasteful fireplace into a beautiful, highly efficient heat source. Coming from the leader in vent free technology, you can expect the gorgeous Solstice to provide excellent heating efficiency without the high cost of extensive renovations or construction.

Retain the look of a traditional hearth with realistic log sets or switch it up with flames rising through modern fireglass. The Solstice is what you make it, fitting into your home and family with ease.

Is This Product Right For You?

Room Size: (Learn More)





BTU/Hr Input: (Learn More)

19,000 to


Estimated Hourly Operating Cost: (Learn More)



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Dimensions in inches. Refer to installation/owner's manual for detailed specifications on installing this product. Hearth & Home Technologies reserves the right to update units periodically. Product installation must adhere strictly to instructions shipped with product.

Model Specifications


Dimensions: 33-3/8 (W) x 23-7/8 (H) x 18-1/4 (D)
Minimum Opening Dimensions: 33 (W) x 23-7/8 (H) x 15-1/4 (D) x 22-3/4 (RW)
Fire Viewing Area: 31 x 16.5
Heating Capacity: Up to 1,100 sq. ft.
Fuel Type: Natural Gas / Liquid Propane
Max BTU/H: 28,000 (NG) / 27,000 (LP)
Ignition System: Millivolt or IPI
Termination: None
Certifications: CSA

Efficiency Chart

 Efficiency: Up to 99.9%

Heat output will vary depending on the type of fuel used. The flame and ember appearance may vary based on the type of fuel burned and the venting configuration used. Actual product appearance, including flame may differ from image shown. Refer to the owner's manual for complete clearance requirements and specifications. Product specifications and pricing subject to change without notice. For testing and listing information please refer to the owner's/installation manual.

*For select products: Heating capacity to be used as a guide only. See your local dealer for help in determining the product that best suits your heating needs based on climate and home efficiency.

†For wood-burning appliances: Actual burn times will vary based on how the appliance is operated, load size, moisture content and type of wood used, and installation.

Product Brochures

Owner's Manuals