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Alterna Ventless FireGlitter Set With Stainless Steel Burner Set 20"

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This product has a wood fuel variation, see under the Wood Fire Pit category.

20 Inch  Alterna FireGlitter ventless gas fireplace glass kit with stainless steel burner is a wonderful alternative to Rasmussen gas logs! This contemporary gas set features a special, custom-sized, vent-free burner that is available in a stainless steel chassis and a wide pan to display the reflective fire glass. We offer a beautiful assortment of options for media, including several colors of sparkling FireGlitter glass pieces. To customize your set, pick between sizes 20 inch, 24 inch, and 30 inch, select the perfect fire glass colors, and choose one of our easy-to-use ignition systems, ranging from a manual, match-lit operation to a variety of remote-controlled options to light your fire from wherever you are sitting!

Alterna FireGlitter Ventless Fireplace Gas Set Specifications Product Specifications:

  • Fireplace: Use in wood-burning fireplaces or approved vent-free fireboxes
  • Burner Type: Ventless Indoor
  • Media Style: FireGlitter Fire Glass 
  • Fuel Type: Natural Gas | Propane
  • Chassis Width: 20 Inch
  • Amount of Media Per Size: 7 Pounds
  • Media Material: High-Temperature Glass 
  • Media Color Options: Platinum, Blue Green, Copper, Cobalt Blue, Black
  • Burner Type: Vent-Free Custom Pan Burner
  • Burner Material: Stainless Steel
  • Installation: Control Assembly
  • Certification: ANSI Z21.11.2-2007 | ANSI Z21.60b-2004


  • SE | RE Controls: Come with standing pilots that consume 300 BTU/hour (1 therm of natural gas every 13.9 days, or 1 gallon of propane every 12.7 days)
  • SE Controls:  Are offered with ON/OFF control with minimal flame height adjustment
  • RE Control: Has a motor drive for remote flame height adjustment. Includes hand-held remote transmitter
  • S Millivolt Controls: Come with a standing pilot that consumes 575 BTU/hour (1 therm of natural gas every 7.2 days, or 1 gallon of propane every 6.6 days). They have an installed switch for ON/OFF control and may be also used with the SR-MV1, THR1-MV1 and WS-MV1 remote controls, or with a wired wall switch, wired wall timer, or a home automation system. The flame height can be adjusted manually at the control valve.
  • EI Controls: Are Pilot-On-Demand systems – there is no gas being consumed while the unit is OFF. Includes the hand-held remote control transmitter for turning the set ON, OFF and adjusting the flame

Alterna FireGlitter Ventless Fireplace Gas Set Features and Benefits Product Features and Benefits:

Customize this Rasmussen Alterna FireGlitter Ventless Fireplace Gas Set to match your personal needs!

  • Available as a natural gas or propane burning gas set for indoor vented fireboxes only
  • The FireGlitter  are made of high temperature glass and comes in 5 colors 
    • The FireGlitter colors are platinum, blue green, cobalt blue, copper, and black.
  • Available in three different sizes including  20 Inch | 24 Inch | 30 Inch
  • Materials are guaranteed to withstand high temperatures and ensure years of enjoyment
  • Burner distributes 30,000 maximum BTUs, depending on the chosen burner size and fuel type
  • Includes an Oxygen Depletion Sensor (ODS) pilot
  • Ignitions control options include:
    • Manual Control Standing Pilot (M)
    • On/Off Remote Control Standing Pilot (SE)
    • Variable Flame Remote Control Standing Pilot (RE)
    • Millivolt Wall Switch with Remote Control Standing Pilot (S)
    • Electronic Spark To Pilot Ignition with Remote Control (EI)
  • All hardware for installation such as the valve assembly, connector kit, damper clamp, and hardware are included!
  • See the Specs tab for manuals, fireplace sizing, and chimney height requirements


Vent-Free sets are supplemental zone heaters - They are not intended for continuous use or whole house heating.

Glass doors must be wide open when burning for proper ventilation, proper combustion and cooling of safety controls. With adequate combustion and ventilation air, the damper may be closed for vent-free use. The damper may be opened slightly for reduced venting.
Check local codes and ordinances for permitted uses.

  • In Most Cases, Vent Free Appliances Are NOT Approved For Bedrooms Or Bathrooms
  • Select States And/Or Counties Within States May Not Allow Installation Of Vent Free Products. 
  • This includes but is not limited to: California, Minnesota, Wisconsin. 
  • Other states may have local restrictions such as Arizona, Nevada, Idaho, Alaska, Wyoming, New Mexico, North Dakota and South Dakota. Please check local codes before purchasing a Vent Free Appliance. 
  • Ventfree Products Are Not Suitable For People With Allergies Or Breathing Problems
Fireplace Sizing Requirements:





20" Set 26 Inches 20 Inches 11 Inches 16 Inches
24" Set 30 Inches 24 Inches 11 Inches 16 Inches
30" Set 36 Inches 30 Inches 11 Inches 16 Inches
Gas Log Set BTUs:

Gas Log Set

Max BTUs/hour

20 Inch 30,000
24 Inch 40,000
30 Inch 40,000


Manufacturer's Warranty


For Residential Single-Family Indoors (Non-Commercial, Non-Multi-Tenant or Non-Hospitality):
Rasmussen warrants against defects in manufacturing and materials:
Two years for logs, burners, grates and safety lighting controls.

For all Outdoors and Commercial, Multi-Tenant and Hospitality:
Six months for logs, burners, grates and safety lighting controls, except 
No warranty on Safety Lighting Controls for Outdoors installations.

For All Vented and Vent-free Sets:

Rasmussen agrees to repair or replace, at our election, any part or component we deem to be covered under warranty. Buyer must notify Rasmussen within thirty days of defect discovery. Unauthorized returns will be refused. Labor costs are not included in warranty. Shipping and handling costs are the responsibility of the Buyer.

Exclusions from warranty for both Vented and Vent-free sets:
- Maximum liability by Rasmussen is the price paid for the product.
- Misuse, neglect, accident, improper installation or use in violation of instructions are not covered by warranty.
- Repair or alterations not made or authorized by Rasmussen voids all warranties.
- Rasmussen is not responsible for components that did not originate from Rasmussen, regardless of retailer representations.
- Freight damage, cracking from thermal shock,
 color changes and corrosion from outdoor installations are beyond Rasmussen's control and are not covered by any warranty.

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Last updated on January 11th 2024.



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