Heatilator Caliber nXt Gas Fireplace

Starting at $3,538

The Caliber nXt provides is one of the most dependable high-efficiency gas fireplaces on the market today. Realistic logs and bold flames fill the large viewing area with a beautiful, roaring fire. This unit includes a standard fan, allowing for even heat distribution.

  • 36" or 42" viewing area
  • Brick interior enhances flames and glowing embers
  • Make it your own with multiple fronts and finishes

Key Features and Technologies

Direct Vent Technology

Direct Vent Technology

With Direct Vent Technology, your fireplace can use outside air for combustion, expelling 100% of the combustion exhaust and by-products.

IntelliFire™ Ignition System

IntelliFire™ Ignition System

IntelliFire features intermittent-pilot Ignition (IPI) allowing you to conserve fuel and money when the fireplace is not in use.

Fireplace Safety

Fireplace Safety

At Heatilator, we are committed to your safety. We lead the industry with advanced safety developments.

Limited Lifetime Warranty

Limited Lifetime Warranty

Our Limited Lifetime Warranty is the strongest and most comprehensive in the industry.


Current Offers



Related Products

Heatilator Caliber Gas Fireplace Heatilator Caliber Gas Fireplace

Model Comparison

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Fronts + Doors

A variety of available front and operable door options offer a tailored appearance to any hearth. A wide range of color options will complement any home décor.

Simon Simon
Craftsman Craftsman
Jamestown Jamestown
Contour Contour

Refractory

Our refractory offers an authentic appearance with remarkable brick detail.

Traditional Traditional
Herringbone Herringbone

Mantels + Shelves

An impressive selection of designs are available in a variety of material and finishes.

Bellevue Flush Wood Mantel Bellevue Flush Wood Mantel
Battlefield Flush Wood Mantel Battlefield Flush Wood Mantel
Portico Flush Wood Mantel Portico Flush Wood Mantel
Kenwood Wall Cabinet Kenwood Wall Cabinet
Kenwood Wall Cabinet with Base Kenwood Wall Cabinet with Base
Kenwood Flush Wood Mantel Kenwood Flush Wood Mantel
Roxborough Flush Wood Mantel Roxborough Flush Wood Mantel
Acadia Flush Wood Mantel Acadia Flush Wood Mantel
Wescott Flush Wood Mantel Wescott Flush Wood Mantel
Richland Flush Wood Mantel Richland Flush Wood Mantel
Fillmore Mantel Shelf Fillmore Mantel Shelf
Gifford Mantel Shelf Gifford Mantel Shelf

Stone Surrounds

Enhance the beauty of a fire with natural stone surround options in marble, granite and slate.

Absolute Black Granite Absolute Black Granite
Beige Marble Beige Marble
Caledonia Granite Caledonia Granite
Green Granite Green Granite
Marron Brown Marble Marron Brown Marble
New Venetian Granite New Venetian Granite
Slate Slate
Tan Brown Granite Tan Brown Granite
Wheatfield Granite Wheatfield Granite

Cast Mantels

Personalize your fireplace with a cast mantel by Fireside Furnishings. Our cast fireplace mantels range from classic to modern designs.


Heat Management Technology

Technologies to help you manage the heat throughout your house.

Power Venting Technology Power Venting Technology
Heat Zone Technology Heat Zone Technology

Termination Caps

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

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

Controls

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

IntelliFire Plus RC300

IntelliFire Plus RC300

Incorporates an LCD screen, intuitive menus and large control buttons in a sleek and modern design. This wireless control gives you the flexibility to use as a remote only or mount on the wall anywhere in the room.

Features: Auto Battery Backup, Pilot Activation, On/Off, 5 Step Flame Height, Fan Speed (Auxiliary 1),Two Additional Auxiliary Functions, Room Temperature Readout, Thermostat Mode, Timer Mode, Child Lock, Wall Docking Station.


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

CNXT4236

Unit Front Width: 41
Framing Front Width: 42
Unit Back Width: 28-1/2
Framing Back Width: 42
Unit Height: 39-7/8
Framing Height: 40-1/8
Unit Depth: 21
Framing Depth: 22
Glass Size: 35 x 24-1/8
BTU/Hour Input: 40,000

CNXT4842

Unit Front Width: 48
Framing Front Width: 49
Unit Back Width: 35-1/2
Framing Back Width: 49
Unit Height: 41-7/8
Framing Height: 42-1/8
Unit Depth: 21
Framing Depth: 22
Glass Size: 42 x 26-1/8
BTU/Hour Input: 45,000

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.


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