Cosmo 42 Gas Fireplace
      What is MSRP?
      Starting at $3,088

      Clean lines and elegant ambiance never go out of style. These horizontal gas fireplaces feature a linear design and long ribbon flame to form a broad and warming firescape. Two sizes and several finishing options create a fundamentally modern look for any space.

      • 17,500 – 26,000 BTUs
      • 42" or 32" viewing area
      • Multiple front and interior finishing choices
      • Reflective black glass liner option

      Heat & Glo Cosmo Overview

        Key Features and Technologies

        Learn more about key product features and technologies.

        • Direct Vent Technology
        • IntelliFire™ Ignition System
        • Limited Lifetime Warranty
        • Fireplace Safety

        Is This Product Right For You:

        Room Size: (Learn More)
        BTU/Hr Input: (Learn More)
        Estimated Hourly Operating Cost: (Learn More)
        Recommended Maintenance: (Learn More)

        Current Offers

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        Model Comparison


        Have complete control over your fire. Controls listed are tested and approved for recommended use with the hearth systems indicated.

        • EasySwitch
        • Smart-Stat
        • Smart-Batt


        Two elegant front designs to choose from in truly contemporary style

        • Finishes
          Cosmo42 Tonic
        • Finishes
          Cosmo42 Martini


        Accent the firebox with contemporary media.

        • Glass Media, Crystal
        • Glass Media, Blue
        • Glass Media, Amber
        • Glass Media, Black
        • Glass Media, White Glass Beads
        • Glass Media, Black Glass Beads
        • Ceramic Fiber Stones

        Log Set

        Optional log set with new burner changes the look to match your decor.

        • Optional Log Set

        Reflective Porcelain Liner

        • Reflective Porcelain Liner

        Power Venting Technology

        Power Venting Technology makes it possible to install a gas fireplace virtually anywhere.

        • Power Venting Technology

        Termination Caps

        As the finishing touch, termination cap options are both functional and beautifully designed.

        • High Wind Vertical Termination Cap
        • Horizontal Termination Cap
        • High-Rise Termination Cap
        • FireBrick Termination Cap for Gas
        • Decorative Radius Cover
        • Safety Shield

        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

        COSMO 42

        Unit Front Width: 48
        Framing Front Width: 50
        Unit Back Width: 37-3/4
        Framing Back Width: 50
        Unit Height: 41-3/4
        Framing Height: 42-1/4
        Unit Depth: 18-1/4
        Framing Depth: 18-1/4
        Glass Size: 39-1/16 x 13-1/4
        BTU/Hour Input: 26,000

        Specification Images

        Efficiency Chart

        COSMO 42

        Steady State: 72.7%
        AFUE: 55.5%
        Canada EnerGuide: 57.0%

        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

        Architect Guides

        Installation Manuals

        Service Parts

        CAD Drawings