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Mason-Lite 44″ Pre-Cast Masonry Firebox Kit

Item #: MFP44

SKU:

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Starting at:

$5,057.00

Customize Your Product

Brick Paneling *

(+$2,336.40)
(+$2,580.30)
(+$2,580.30)
(+$2,336.40)
(+$2,580.30)
(+$2,580.30)
(+$2,336.40)
(+$2,580.30)
(+$2,580.30)

Metal Base *

(+$1,571.00)

Masonry Arch *

(+$416.00)

Height Kit *

(+$692.55)

Damper Kit *

(+$549.22)
(+$147.91)

Burner Set *

(+$2,702.54)
(+$2,702.54)

Ignition *

(+$585.00)
Product price: $5,057.00
Order total:

Returns may be subject to a 20% restocking fee. Shipping and processing fees are non-refundable.

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Product Description

A masonry fireplace you can build in a day

A traditional site-built masonry fireplace means a mason, a footing, several tons of brick and a week of work. Mason-Lite gets you the same thing — a genuine refractory masonry firebox that will outlive the house — from pre-cast modular sections that stack and mortar together.

The whole 44" unit weighs 1,331 lbs, but it arrives as pieces a crew can carry through a doorway. No footing, no crane, no week of bricklaying. That is the entire proposition, and it is why these turn up in remodels where a real masonry fireplace was thought impossible.

Stronger than the brick it replaces

The refractory is rated at 3,500 PSI — substantially tougher than typical firebrick, and Mason-Lite claims up to 70% tougher than competing modular systems, at lighter weight. In a firebox, compressive strength is what resists thermal cycling: the repeated heating and cooling that eventually cracks weaker refractory and starts the long decline into relining work.

Wood now, gas later — or the reverse

The firebox ships with a knock-out and a concrete plug. Leave the plug mortared in and it is a wood-burning fireplace. Knock it out and you have a gas line penetration for a burner or log set. You are not committing to a fuel at purchase, which is genuinely useful — plenty of owners burn wood for a decade and then switch to gas as priorities change.

Installation and venting

  • 12" flue outlet — size your chimney accordingly
  • Framed opening: 52"W x 30"D
  • Suits flush, corner, internal wall or full projection installation
  • UL Listed to UL 127 and UL 193

The 12" flue is the number to plan around. This is a full masonry-class fireplace and it needs a chimney system to match — not a 6" stove pipe.

Specifications

  • Firebox: 44"W x 23"D
  • Overall: 48"W x 30"D x 62½"H
  • Framing: 52"W x 30"D
  • Material: modular pre-cast concrete, 3,500 PSI refractory
  • Weight: 1,331 lbs total, shipped as sections
  • Venting: 12" diameter
  • Fuel: wood, or gas via the knock-out
  • UL Listed · UL 127 · UL 193

Planning a chimney for a 12" flue is a different job from venting a stove. Send us your framing and roof detail and we will spec the full system — (540) 212-9374.

Specifications

Type: Insert/Firebox | Modular
Fuel Type: Wood
Certification: UL Listed | UL 127 | UL 193
Frame Width: 52 in
Frame Depth: 30 in
Material: Modular Concrete
Overall Width: 48 in
Overall Depth: 30 in
Overall Height: 62.5 in
Firebox Width: 44 in
Firebox Depth: 23 in
Venting Diameter: 12 in
Item Weight: 1331 lb
Installation Type: Flush Installation / Corner / Internal Wall / Full Projection
Warranty: Limited lifetime warranty

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FAQs

Q: Do You Ship to Me?

A: We ship throughout the continental United States with free shipping on orders over $99 (flat rate $9.99 under $99). For Alaska, Hawaii, and U.S. territories, please contact us for a custom shipping quote, which we'll provide within 1-2 business days. Orders to these locations are not processed until shipping costs are confirmed and approved. We do not currently offer international shipping outside of the United States and its territories.

Q: When Will My Order Ship?

A: Orders are processed within 1–3 business days, and delivery after shipment takes 5–14 business days depending on your location. Custom-made and made-to-order products require 2-3 weeks for production before shipment. Special order items typically take 1-2 weeks. You'll receive tracking information once your order ships. For specific timing on your order, please contact us.

Q: What Payment Methods Do You Accept?

A: We accept all major credit and debit cards (Visa, MasterCard, American Express, Discover), Apple Pay, Google Pay, and Link by Stripe for one-click checkout.

Q: Can I Cancel or Modify My Order?

A: For ready-to-ship items, contact us immediately if you need to cancel or modify. We'll do our best to accommodate if the order hasn't shipped yet. For custom-made, made-to-order, and special order items, these are final sale and cannot be canceled or modified once production begins or the order is submitted to the manufacturer. Please double-check your order details before completing your purchase.

Q: Why Choose First Response Fireplace Products?

A: We bring years of specialized expertise to the fireplace industry. When you choose us, you're getting the knowledge and experience that comes from being dedicated fireplace industry experts.

More Questions?

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Freight Shipping

After processing, your order will ship and should arrive within 5-7 business days, depending on your location
Your order comes with free lift gate service. The freight driver will use a lift gate to unload the shipment and place it curbside at your home. You’ll need to move the shipment from the curb to the end location. Please make sure your street can accommodate a tractor-trailer.
Upon delivery, you’ll be asked to sign the Proof of Delivery (POD). Before signing, inspect the shipment for visible damage. If damaged, refuse the shipment and call us for a replacement. Damage to products inside the shipment must be reported within 3 business days of delivery.