Experience the warmth and charm of a traditional fireplace with the convenience of gas. Keystone B-Vent Fireplaces by White Mountain Hearth combines modern technology with traditional venting to provide the appearance and performance of a conventional fireplace.
Millivolt and Intermittent Pilot Models
Louvered and Flush Models
Natural Gas (Propane conversion available)
Zero Clearance Certified
Remote Control Options
A Variety of Decorative Accessories
Aged Brick Liner
FBB4 automatic Blower with variable speed control available on Louvered models.
Keystone 34: A 37, B 34, C 22 7/8, D 35 5/8, E 32 3/4, F 14 7/8, G 6 3/8, H 5 7/8, I 24 1/2, J 12 1/4
Keystone 36: A 39, B 36, C 24 7/8, D 37 5/8, E 34 3/4, F 18 3/8, G 6 3/8, H 8 3/8, I 22 1/2, J 11 1/4
Keystone 42: A 43, B 40, C 24 7/8, D 37 5/8, E 34 3/4, F 18 3/8, G 6 3/8, H 6 3/8, I 26 1/2, J 13 1/4
Keystone 34: 21,000
Keystone 36: 25,000
Keystone 42: 30,000
Vent Size: 4″ (for Keystone 34) or 6″ (for Keystone 36 and 42)
Refer to manual
For most installations, this B-Vent fireplace will be framed behind a wall or in a chase.
Gas Inlet for Fireplace Models: Iron Pipe Size (N.P.T.) 1/2-inch
Ignition System: Standing Pilot/Piezo or Intermittent Pilot
All parts carry a 3-year limited warranty
All remote controls carry a 1-year limited warranty
The Keystone B-Vent Fireplaces by White Mountain Hearth Fireplaces provide the perfect combination of traditional beauty and modern convenience. With the flicker of the flames and the warmth of gas, these fireplaces create a cozy atmosphere that’s perfect for any home. The B-Vent system ensures that the flames can burn safely without overheating the room, and the choice of Premium or Deluxe models allows homeowners to customize the look and feel of their fireplace. With both millivolt and intermittent pilot models available, homeowners can choose the ignition system that best suits their needs. The option for louvered or flush models, along with a range of decorative accessories, means that each fireplace can be tailored to fit any home’s style. Plus, with a 3-year limited warranty on all parts and 1-year warranty on remote controls, homeowners can enjoy the warmth and beauty of their new fireplace with peace of mind.
White Mountain Hearth Fireplaces is a leading manufacturer of high-quality gas fireplaces, stoves, and inserts. Founded in 1901, the company has been providing homeowners with top-of-the-line products for over a century. White Mountain Hearth is a division of Empire Comfort Systems, Inc., which is based in Belleville, Illinois.
The company is committed to creating innovative products that are designed to meet the needs of today’s homeowners. White Mountain Hearth Fireplaces offers a wide range of gas fireplaces that are designed to fit any home’s style and budget. With both traditional and contemporary designs, there is a fireplace to fit any decor.
White Mountain Hearth Fireplaces also offers a variety of accessories, such as mantels, screens, and log sets, to further customize the look and feel of your fireplace. Additionally, the company is committed to using high-quality materials and advanced manufacturing techniques to ensure that each product is built to last.
With a strong commitment to customer service and a passion for creating high-quality products, White Mountain Hearth Fireplaces has become a trusted name in the industry. Whether you’re looking for a new gas fireplace, stove, or insert, White Mountain Hearth has the products and expertise to help you create the perfect ambiance for your home.
Q: What is a B-Vent fireplace?
A: A B-Vent fireplace is a type of gas fireplace that uses traditional venting to provide the appearance and performance of a conventional fireplace.
Q: What is the difference between the Keystone Premium and Deluxe models?
A: The Premium model has a higher Btu input and comes with more standard features and decorative options than the Deluxe models.
Q: Can the Keystone B-Vent Fireplaces be used with propane gas?
A: Yes, a propane conversion kit is available.
Q: What is the difference between millivolt and intermittent pilot models?
A: Millivolt models use a standing pilot light, while intermittent pilot models use an electronic ignition system.
Q: Can I control the fireplace with a remote?
A: Yes, remote control options are available.
Q: What is the warranty on the Keystone B-Vent Fireplaces?
A: All parts carry a 3-year limited warranty, and all remote controls carry a 1-year limited warranty.
Q: Are there options for decorative accessories?
A: Yes, a variety of decorative accessories are available, including liners, doors, louvers, and frames.
Q: Are the fireplaces zero clearance certified?
A: Yes, the fireplaces are zero clearance certified.
Q: What is a zero clearance fireplace?
A: A zero clearance fireplace is designed to be installed in tight spaces or areas with combustible materials.
Q: What type of gas inlet is required for the fireplace models?
A: Iron Pipe Size (N.P.T.) 1/2-inch.
Q: What is the ignition system for the Keystone B-Vent Fireplaces?
A: The ignition system can be either standing pilot/piezo or intermittent pilot.
Q: What type of venting is used for B-Vent fireplaces?
A: B-Vent fireplaces use traditional venting.
Q: Can the Keystone B-Vent Fireplaces be flush mounted?
A: Yes, both louvered and flush models are available.
Q: What is the minimum framing depth required for installation?
A: The minimum framing depth for Keystone 34 is 14 3/8″, while for Keystone 36 and 42 is 17 7/8″.
Q: What type of fuel do the fireplaces use?
A: Natural gas is used, with a propane conversion kit available.
Q: What is the Btu input for each model?
A: Keystone 34 has 21,000 Btu input, Keystone 36 has 25,000 Btu input, and Keystone 42 has 30,000 Btu input.
Q: What is the vent size for each model?
A: Keystone 34 has a 4″ vent size, while Keystone 36 and 42 have a 6″ vent size.
Q: What is the warranty on remote controls?
A: Remote controls carry a 1-year limited warranty.
Q: What is the weight of each model?
A: Keystone 34 weighs 110 lbs, Keystone 36 weighs 121 lbs, and Keystone 42 weighs 134 lbs.
Q: Can an automatic blower be used with the louvers?
A: Yes, an FBB4 automatic blower with variable speed control may be used on Louvered models.
Q: What are the framing dimensions for each model?
A: The framing dimensions for Keystone 34 are 37 3/8″ width, 35 3/4″ height, and 14 3/8″ minimum framing depth. For Keystone 36, the framing dimensions are 39 3/8″ width, 37 3/4″ height, and 17 7/8″ minimum framing depth. For Keystone 42, the framing dimensions are 43 3/8″ width, 37 3/4″ height, and 17 7/8″ minimum framing depth.