Our gas-burning masonry fireplaces have the highest quality on the market

These fireplaces have a charming appearance when turned on or off and have an exceptional thermal output. They come with safety features, realistic logs, and a remote control.

Our 10″ B-vent fireplace systems will add value and luxury to your home without the inconvenience and mess of traditional wood-burning fireplaces. They come in 39″, 44″, and 49″ units as well as an ASST43 See-Through model. The see-through model has a 12″ b-vent and comes with RH Peterson gas logs. These lightweight masonry fireplaces follow all U.S. building codes required for indoor and outdoor construction. Their design also allows for multi-floor installations.

Product Highlights

  • Models offered in three different sizes (Also available in propane):
    • ASG39 (39″): 65,000 BTU’s (natural gas)
    • ASG44 (44″): 65,000 BTU’s (natural gas)
    • ASG49 (49″): 80,000 BTU’s (natural gas)
  • Electronic ignition with battery backup.
  • Safety shutoff component for fail-safe use.
  • Remote control for turning the gas off and on.
  • Follows ANSI-Z 21.50 gas fireplace requirements.
  • Industry-standard 10” B-vent chimney.
  • Smaller Flue (10” instead of 14”) for reduced framing standards that architects love.
  • Different options for firebrick patterns and colors that give an authentic fireplace feel.
  • Clean burn that is safe for the environment. Gas-burning fireplaces produce fewer pollutants, carbon monoxide, and particulate matter than wood-burning models.
  • Operation that is mess-free and easy to use. There are no ashes or wood chips, sparks or long-burning embers, and no chimney cleaning required. There is also no wood storage space needed.
  • Comes with R.H. Peterson “Real-Fyre” realistic gas logs, which are made to look like natural wood.

Product Specifications

These are the actual sizes of the product. Add four inches for framing clearances, and review the gas-burning fireplace instruction manual for details.

AS 39 43″ 39″ 30¼” 27¾” 63½” 950
AS 44 48″ 44″ 35¼” 32¾” 63½” 1200
AS 49 53″ 49″ 40¼” 37¾” 63½” 1250

All B-Vent Fireplaces come standard with a gas log set by RH Peterson



Gas Burning FAQs

Gas-burning models: ASGST43, ASG39, ASG44, ASG49.

Q: Is it possible to install this fireplace outside?
A: Yes, it can be installed BOTH indoors and outdoors. Make sure that it is sheltered from direct weather if it is set up outside.

Q: Is it safe to use this fireplace?
A: Yes. It has been listed by PFS testing laboratories and tested to the ANSI Z21.50 for gas fireplaces. Always be sure to follow the operating instructions for safety.

Q: Can the fireplace be installed on a wood floor?
A: Yes

Q: Is burning wood in the gas fireplace allowed?
A: NO!

Q: What kind of chimney should be used on this fireplace?
A: These gas-burning fireplaces have been tested with a B-Vent chimney. Follow the instruction manual for safe installation.

Q: Can a glass door be installed on the fireplace?
A: Yes. Make sure to follow the manufacturer’s instructions and keep the doors completely open when the fireplace is in use.

Q: Is firebrick required for the inside of the firebox?
A: Yes. You can hire a mason to lay the firebrick for you, or Capo can supply firebrick panels for easy installation.

Q: Are there see-through gas-burning fireplaces available?
A:  Yes, the ASGST43 model.

Q: Can I install this gas fireplace in a bedroom?
A: That depends on what is allowed with local building codes. The fireplace is safe to have in a bedroom, but you need to check what the building codes are for your area.