Mason-Lite 120" Linear Gas Fireplace (No Trough)- Dual 12" B-Vent
Mason-Lite 120" Linear Gas Fireplace (No Trough)- Dual 12" B-Vent
Authorized Dealer
Call (844) 643-8500
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Description

Built for lasting performance, the Mason-Lite 120" Linear Gas Fireplace (No Trough)- Dual 12" B-Vent (model LMFP120-NT) is a 120" wide contemporary linear masonry fireplace that pairs a modern, low-profile opening with the solid presence of real refractory concrete. Key planning details include a 134" x 28" floor area, an H-burner rating of 200,000 BTU/hr and an installed weight of about 3125 lbs. It is engineered to vent through dual 12 inch B-vent chimney and is also compatible with Class A chimney for maximum design flexibility. This model features a flush hearth with no trough, ideal for clean, minimalist installations and custom media beds.
The pre-cast refractory construction delivers the solid presence of masonry with far less labor than a site-built linear fireplace. Choose a flush hearth for a clean, minimalist look or a burner trough for a floating ribbon of flame, and finish the face with stone, tile, plaster or steel. Mason-Lite linear fireplaces are made in the USA and backed by a limited lifetime warranty. Backed by decades of masonry fireplace engineering, Mason-Lite products are made in the USA to help builders, masons and homeowners finish projects faster and with lasting results.
What's Included
- 120" Linear Gas Fireplace (No Trough)- Dual 12" B-Vent
Key Features
- Class A chimney accepted
- ANSI Z21.50 compliant
- Glassdoor tested & listed
- Square sides - 90º angle in rear corners
- Choice of flush hearth or burner trough
- Units available with & without burner trough
- BTUs starting at 85,000 to 200,000, depending on model
- Standard sizes are designed to use single or dual 12" B-vent chimney
- Available with Golden Blount Alpine Burner & Warming Trends Crossfire Burner
- Custom widths also available including, but not limited to, corners & see-throughs (meet NFPA211 requirements)
- Modular Pre-cast fireplaces reduce labor and assembly time
- Made in the U.S.A
Specifications
| Brand | Mason-Lite |
|---|---|
| Model | LMFP120-NT |
| Dimension A | 133" |
| Dimension B | 123" |
| Dimension C | 120" |
| Dimension D | 117" |
| Framing Dimension (Non-combustible floor system) | 138" (W) x 40.5" (H1) x 54.25" (H2) |
| Floor Area | 134" x 28" |
| H-Burner BTU/HR | 200,000 |
| Gas Log Burner BTU/HR | 180,000 |
| Mortar, Rebar, and Ready Mix Concrete | 330 lbs. |
| Weight | 3125 lbs. |
| Flue | (2) 12" Ø |
| Style | Contemporary |
| Installation Type | Flush Installation / Corner / Internal Wall / Full Projection |
| Certification | ANSI Z 21.50 complaint |
| Warranty | Limited lifetime warranty |
| Category | Linear Fireplaces |
| Fuel Type | Natural Gas or Liquid Propane |
| Material | Pre-Cast Refractory Concrete |
| Made In | USA |
Documents & Files
- Mason-Lite Catalog
- Mason-Lite 4-page Brochure
- Mason-Lite Bi-fold Brochure
- Mason-Lite Linear Brochure
- Mason-Lite Gas B-Vent Brochure
- Mason-Lite Gas Vent Free Brochure
- Mason-Lite Custom Fireplace Brochure
- Opalescence Linear Burner Brochure
- Mason-Lite Burner Brochure
- Virginiana Gas Log Brochure
- Masonry Accessories Brochure
- Mason-Lite PureBurn Brochure
- Architectural Clay by MFI (Clay Chimney Tops)
- Shroud Brochure
- Mason-Lite Limited Lifetime Warranty
- Corner Installation
- Masonry Chimney Specifications
- Wood & Concrete Installation
- Mason-Lite Fireplace Stacking
- Standard Wood Burning (MFP33/39/44/49/63)
- MFP 75 Instruction Manual
- See-Thru (MFPST43)
- Regal Unit Instruction Manual (MFP72-RGL-MFP120-RGL)
- Wood Burning Clearance Mantel Guide
- Gas B-Vent (MGFP39/44/49)
- See-Thru Gas B-Vent (MGFPST43)
- LMFP Linear B-Vent Manual
- Linear Burner Riser Block Installation
- Vent Free Manual
- See Thru Vent Free Manual
- Virginiana Vent Free Burner Manual
- Opalescence Vent Free Burner Manual
- Firebrick Panel Instructions
- Masonry Arch
- Clay Flue Liner Instructions
- Pureburn Instructions
- Pureburn Electronic Ignition Installation
- Shroud Instructions
- Metal Base Installation
- Damper Block Instruction
- Chimney Sizing Chart
- Recessed Flooring Instructions
- CMU Base Layout
- Footing for Outdoor Fireplace
- Seismic Zoning Map
- Metal Base Spec Sheet
- Virginiana Standard Burner Manual
- Virginiana Jumbo Slim Gas Logs Installation Manual
- Virginiana Lucent Installation Manual
- Virginiana See Thru Burner Manual
- Opalescence LED Linear Burner Manual (For LMFP units with Trough)
- Opalescence Lumiere Instruction Manual
- Alpine Burner Manual (For LMFP units with Trough)
- Mason-Lite Minimum Fireplace Dimensions Flyer
- Masonry Chimney Instructions (with offset)
- Masonry Chimney Stack Example
- Masonry Chimney Anchor Plate Damper Instructions
- Mason-Lite Specification Sheet
- Pre-Installation Checklist
- Firebrick Per Unit
- Certified Mason-Lite Mason Certificate
- Homeowner Curing Instructions
Shipping & Returns
Shipping & Returns
Shipping Policy
We strive to make the ordering process as straightforward as possible. If you have any questions regarding your order, please contact us at +1 (844)-643-8500 or support@efireplacedirect.com during our regular business hours.
Order Confirmation
Upon placing your order, you will receive an order confirmation email. We will then verify that all items are in stock and available for shipment. If your order can be delivered within the advertised timeframe, it will be processed and sent to the warehouse for shipment.
If the expected delivery timeframe exceeds the advertised timeframe, we will contact you by email or phone to confirm the order and provide updated delivery information.
Order Processing
Orders are typically processed within 24–48 business hours after your payment has been successfully verified and approved. We make every effort to ship your items as quickly as possible.
Please note that shipping times refer to the time required for your order to arrive after it has been shipped and do not begin from the date the order is placed. Processing and shipping times exclude weekends and holidays.
If your order is urgent, we recommend contacting us at +1 (844)-643-8500 before placing your order so we can confirm product availability and the estimated shipping timeframe.
In rare cases, an item may be unavailable, backordered, or subject to an extended lead time. If this occurs, we will notify you as soon as possible.
Receiving an order confirmation does not guarantee final acceptance of your order. efireplacedirect reserves the right to accept or decline an order for any reason and may request additional information or verification before processing an order.
Order Shipment
Once your order has shipped, you will receive an email containing your tracking information, when tracking is available.
If you have not received tracking information within 7–10 business days of placing your order, please contact our customer service team at +1 (844)-643-8500 or support@efireplacedirect.com
Estimated Time of Arrival
Our standard delivery timeframe is generally 7–14 business days after shipment.
For custom-made or specially ordered products, delivery may typically take 4–12 weeks, depending on the product and manufacturer.
Delivery estimates are provided as guidelines and may vary depending on product availability, manufacturer lead times, carrier schedules, holidays, and other circumstances beyond our control.
If the estimated delivery timeframe for your order falls outside the expected delivery window, our customer service team may contact you with an updated estimate.
Areas Covered & Shipping Costs
Shipping rates and estimated delivery times advertised on our website apply to the contiguous United States (Lower 48 states) unless otherwise specified.
We offer free standard ground shipping on orders of $200 or more in our online catalog, subject to applicable product exclusions.
Shipping Rates
- Orders below $200: $70 flat-rate shipping
- Orders of $200 or more: Free standard ground shipping
Products specifically marked as eligible for free shipping qualify for the applicable free-shipping offer. Expedited shipping, special delivery services, or other upgraded shipping options may incur additional charges.
For shipping to Alaska, Hawaii, U.S. territories, or other locations outside the contiguous United States, additional shipping charges may apply, even when an item is listed as eligible for free shipping.
If additional shipping charges are required, we will contact you after your order is placed to confirm the shipping cost and arrange payment for any applicable additional charges.
We currently do not offer international shipping. However, customers may arrange delivery to a freight forwarder of their choice, subject to our shipping terms and carrier requirements.
Delivery Method
Standard shipping generally includes curbside delivery. This means the shipment is delivered to the curb or another accessible location near the delivery address, typically near the driveway or mailbox.
Customers are responsible for moving the product from the delivery location into their home and for any required assembly or installation.
Please review the product specifications and installation requirements before placing your order. Professional installation may be recommended or required for certain products.
Damaged or Missing Shipments
It is important to carefully inspect your shipment when it arrives.
- Before signing for a freight delivery:
- Inspect the packaging for visible damage.
- Confirm that all packages listed on the delivery receipt have been received.
- Take clear photos and videos of the shipment and packaging.
- If the package appears damaged, note the damage on the delivery receipt or bill of lading.
- If appropriate, refuse the shipment and clearly state "Refused due to damage."
If there is no visible damage to the outside of the packaging but you have not yet inspected the product, note "Subject to further inspection may contain concealed damage" on the delivery receipt before signing.
Failure to document visible damage or missing packages at the time of delivery may affect the ability to file a freight damage claim.
Concealed Damage
If you discover damage after opening the package and there was no visible damage to the exterior packaging, please keep all original packaging materials and contact us as soon as possible.
Please provide clear photos and videos showing:
- The damaged product
- All sides of the packaging
- Shipping labels
- Any visible damage to the box or packing materials
- The product packaging and protective materials
Damage claims should be reported within 2 business days of delivery so that we can work with the shipping carrier or manufacturer to determine the appropriate resolution.
Once we receive the required documentation, efireplacedirect will review the claim and, where applicable, work with the carrier or manufacturer to arrange a replacement or other appropriate resolution.
Customer Support
For questions about your order, product availability, shipping, delivery estimates, or damaged shipments, please contact:
Phone: +1 (844)-643-8500
Email: support@efireplacedirect.com
Return Policy
Order Cancellations
If you wish to cancel your order, please contact us as soon as possible. Most orders ship within 1–3 business days.
Your cancellation is only considered confirmed once you receive confirmation from us by phone or email.
Once an order has shipped, our Return Policy will apply. A restocking fee of up to 25% may apply to returned orders.
To request a cancellation, please contact us:
- Email: support@efireplacedirect.com
- Phone: +1 (844)-643-8500
Return Eligibility
At Modern Flames Shop, we strive to ensure your complete satisfaction with your purchase. If you need to return an item, please review the following return policy.
Items may be returned within 30 days of receiving the order for an exchange, store credit, or refund. Products must be unused, in new condition, and returned with their original packaging and included materials.
Return Policy
- Fireplace and accessory items must be returned within 30 calendar days of delivery.
- Products must be unused and in new condition.
- Items should be returned in their original packaging with all included materials.
- Shipping costs are non-refundable.
- A 25% restocking fee may be deducted from the refund.
- Refunds will be issued to the original form of payment.
- If a returned product is not eligible for a refund, we will notify you.
- Shipping charges are non-refundable and will be deducted from the refund amount.
Contact Us
If you have questions about cancellations, returns, exchanges, or refunds, please contact our customer support team:
Phone: +1 (844)-643-8500
Email: support@efireplacedirect.com
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