HHT Refractory Extensions for Majestic Ashland Fireplace
Extend Firebox Durability with Precision-Fit Refractory Panels
Enhance your Majestic Ashland fireplace with refractory extensions that create a seamless transition between the firebox floor and your hearth extension. These add-ons complement, not replace, your standard refractory panels.
Key Features
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Seamless Firebrick Look – Extends the firebrick surface beyond the firebox opening for a continuous masonry appearance.
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Works With Standard Panels – Designed to be used in addition to the Ashland’s included refractory panels, not as replacements.
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Improved Aesthetics & Compliance – Helps meet certain building code requirements for hearth depth while enhancing your fireplace’s traditional design.
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Easy Integration – Installs at the bottom/front edge of the firebox for a perfect fit with Ashland 36", 42", and 50" models.
Product Features
Complements Existing Refractory Panels
These extensions are installed alongside the standard refractory panels — they do not replace them. They extend the firebox floor forward for a seamless finish.
Flush Hearth Integration
Ideal for flush hearth installations, creating a continuous, brick-lined look from inside the firebox to your hearth extension.
Enhanced Safety & Code Compliance
By extending the non-combustible refractory surface, these accessories may help satisfy local building codes for hearth protection.
Custom Fit for Ashland Fireplaces
Available for Majestic Ashland 36", 42", and 50" fireplaces, ensuring proper compatibility and easy installation.
Product Specifications
| Specification |
Details |
| Manufacturer |
HHT (Hearth & Home Technologies) |
| Product Type |
Refractory brick extensions (firebox brick add-ons) |
| Item Numbers (Finish / Pattern) |
MMHBX-B – Firebrick Yellow, Herringbone; MMTBX-B – Firebrick Yellow, Traditional; AMMHBX – Natural Gray, Herringbone; AMMTBX – Natural Gray, Traditional. |
| Compatible Fireplaces – Majestic (Ashland) |
ASH36, ASH42, ASH50 (all sizes) |
| Compatible Fireplaces – Heat&Glo (Rutherford) |
RUTHERFORD-36-B, RUTHERFORD-42-B, RUTHERFORD-50-B |
| Compatible Fireplaces – Heatilator (Birmingham) |
BIR36-B, BIR42-B, BIR50-B (AMMHBX/AMMTBX pages list these) |
| Approx. Product Weight |
17.2 lb |
| Installation Notes |
Use refractory mortar as specified in your fireplace manual; follow seasoning guidance to avoid thermal shock. |
Warranty
HHT Limited Warranty
Hearth & Home Technologies LLC (“HHT”) extends the following warranty for wood hearth appliances (each a “Product” and collectively, the “Product(s)”) and certain component parts outlined below (“Component Part(s)”) when purchased from an HHT authorized dealer or distributor.
| Warranty Period |
Component Parts Covered by this Warranty |
| 1-Year Components Only |
All purchased replacement parts and optional accessories |
See the full HHT Limited Lifetime Warranty for complete terms, conditions, and exclusions. Coverage applies to products at the original installation site and may vary by component.
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