Monessen Symphony Contemporary Millivolt Control Vent Free Natural Gas Fireplace
The Symphony vent-free gas fireplace, featuring Millivolt control, is perfect for heating smaller spaces in both style and affordability. Its sleek, slim design offers a comprehensive view of the flames, making it a practical and elegant addition to any room. Heating your favorite spot has never been more straightforward or cost-effective. You can personalize the Symphony to fit your taste with options like traditional logs or modern fiberglass. Its easy installation means it becomes part of your home in no time. The Monessen Symphony fireplace brings warmth and beauty with its slim profile and advanced Triple Play Burner System, which creates a full, flickering yellow flame. Available in 24" and 32" sizes, this fireplace offers a 7-piece log set and vibrant flames.
It features a user-friendly control panel that easily detaches for quick upgrades, like adding a blower. Designed to be vent-free, this doesn’t require an external venting system. It draws combustion air from inside the room and operates at up to 99.9% efficiency, making it an excellent choice for comfort and energy savings. You can choose between natural gas or propane for added flexibility.
Features
- Up to 28,000 BTUs
- CSA design certified
- Easy access control panel
- Available in 24" or 32" models
- Fuel Type: Natural Gas, Propane Gas
- Customizable to blend with any home decor
- 18" flex line with on/off shut-off valve
- Available in millivolt or IPI control
- Slim, clean design with expansive views
- Available in millivolt or IPI (EcoLogic) control
- Natural Blaze Burner System and exclusive 7 piece log set
- Select your style: traditional with logs, or contemporary with fireglass
- No chimney or venting required makes installation fast, easy, and affordable
- Monessen natural blaze burner system
- Large ember bed
- Electronic Ignition/Millivolt ignition - standing pilot
- Manual variable flame height
- 5 Piece ceramic fiber log set
- Manufactured for indoor use
- Btu/Hr - 19,000 - 28,000 (NAT)
- Btu/Hr - 22,000 - 27,000 (LP)
- Black decorative/traditional face (optional)
- Cinnamon firebrick liner (optional)
- Custom Installation
- 18" flex line with on/off shut-off valve
- Easy access control panel
- Vent-free units do not require any venting products
Specifications
| Features |
32" Model |
24" Model |
| Size |
32" |
24" |
| Appliance Width |
32" |
24-5/8" |
| Appliance Height |
30" |
26-1/2" |
| Appliance Depth1 |
14-1/2" |
14-1/2" |
| Framing Width |
32-1/2" |
25-1/8" |
| Framing Height |
30-1/4" |
26-3/4" |
| Framing Depth |
13-3/8" |
13-3/8" |
| Fuel Type |
Natural Gas or Liquid Propane |
Natural Gas |
| BTU/hr Input |
28,000 NG / 27,000 LP |
22,000 NG |
| Heating Capacity2 |
Up to 1,400 sq ft |
Up to 1,100 sq ft |
| Viewing Area |
28-3/4" x 19-1/2" (560 sq in) |
22-5/8" x 16-1/4" (368 sq in) |
| Efficiency3 |
Up to 99.9% |
N/A |
| Ignition System |
Millivolt or IPI |
Millivolt |
| Overall Dimensions |
32" W (front) x 30" H x 13-1/8" D x 25-3/4" W (rear) |
24-5/8" (W) x 26-1/2" (H) x 14-1/2" (D) |
| Rough Framing Dimensions |
32-1/2" W x 30-1/4" H x 13-3/8" D |
25-1/8" (W) x 26-3/4" (H) x 13-3/8" (D) |
| Viewing Area Dimensions |
28-3/4" W x 19-1/2" H (560 sq in) |
22-5/8" W x 16-1/4" H (368 sq in) |
What Our Experts Think
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Efficient Vent-Free Heating: Delivers strong, usable warmth without needing a chimney or flue
-
Contemporary Design: Modern aesthetics suit sleek, updated interiors
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Millivolt Control: Reliable, power-independent ignition and flame adjustment — works even during power outages
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Natural Gas Operation: Clean, convenient fuel with steady performance
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Inviting Flame Display: Warm and balanced flame pattern enhances ambiance while heating
Questions & Answers
-
What type of fireplace is this?
A vent-free natural gas fireplace with millivolt control for consistent, manual operation.
-
Does it require a chimney?
No — its vent-free design means no chimney or flue is needed.
-
What is millivolt control?
A battery-backed control system that operates independently of household power for reliable ignition and flame adjustment.
-
Is it suitable for home heating?
Yes — efficient heat output makes it ideal for small to medium living spaces.
Maintenance Tips
-
Inspect and clean the burner and pilot area periodically
-
Wipe surfaces with a soft, dry cloth; avoid harsh cleaners
-
Check gas connections annually for safety
-
Ensure proper room ventilation per guidelines
-
Have a qualified technician service the fireplace yearly for optimal performance
Damage 
Loss 
Theft 
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