---
product_id: 621385023
title: "GIRtech USM-4 Heavy Duty Firebricks 4-Pack Fireclay, Chamotte 3000F US Stove 9\" x 4-1/2\" x 1-1/4\" Insulating, Replacement Fire Bricks for Fireplaces, Wood Stoves, Pizza Ovens, Steel Furnaces, Forge"
brand: "girtech"
price: "S$178"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/621385023-girtech-usm-4-heavy-duty-firebricks-4-pack-fireclay-chamotte
store_origin: SG
region: Singapore
---

# 3000°F max heat resistance Enhanced thermal conductivity Custom cut & fit capability GIRtech USM-4 Heavy Duty Firebricks 4-Pack Fireclay, Chamotte 3000F US Stove 9" x 4-1/2" x 1-1/4" Insulating, Replacement Fire Bricks for Fireplaces, Wood Stoves, Pizza Ovens, Steel Furnaces, Forge

**Brand:** girtech
**Price:** S$178
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your heat game with bricks that mean business!

## Quick Answers

- **What is this?** GIRtech USM-4 Heavy Duty Firebricks 4-Pack Fireclay, Chamotte 3000F US Stove 9" x 4-1/2" x 1-1/4" Insulating, Replacement Fire Bricks for Fireplaces, Wood Stoves, Pizza Ovens, Steel Furnaces, Forge by girtech
- **How much does it cost?** S$178 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/621385023-girtech-usm-4-heavy-duty-firebricks-4-pack-fireclay-chamotte)

## Best For

- girtech enthusiasts

## Why This Product

- Trusted girtech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Hearth Hero:** Ideal for fireplaces, wood stoves, pizza ovens, and steel furnaces alike.
- • **Long-Lasting Protection:** Insulate and shield your heating unit to extend its lifespan and boost performance.
- • **Unmatched Heat Endurance:** Withstand blazing temperatures up to 3000°F for ultimate durability.
- • **Maximized Heat Efficiency:** Superior thermal conductivity ensures faster, more even heat distribution.
- • **Precision Fit, Every Time:** Easily cut and shape bricks to perfectly suit your unique heating setup.

## Overview

The USM-4 Heavy Duty Firebricks 4-Pack offers premium fireclay bricks rated for up to 3000°F, delivering enhanced thermal conductivity and customizable sizing. Perfect for domestic fireplaces, wood stoves, pizza ovens, and steel furnaces, these bricks provide superior insulation and durability to optimize heating efficiency and protect your equipment.

## Description

USM-4 Heavy Duty Firebricks 4-Pack Fireclay, Chamotte 3000F US Stove 9" x 4-1/2" x 1-1/4" Insulating, Replacement Fire Bricks for Fireplaces, Wood Stoves, Pizza Ovens, Steel Furnaces, Forge

## Features

- Enhanced Thermal Conductivity: GIRtech USM-4 fire bricks offer improved thermal conductivity compared to traditional chamotte products. Experience superior heat transfer and distribution, maximizing the efficiency of your heating units.
- High Refractoriness and Versatile Use: With a Maximum refractoriness of 3000 degrees Fahrenheit and service temperature 2760 degrees Fahrenheit, these fire bricks are suitable for various domestic heating units. Perfect for brick fireplaces, steel furnaces, heating stoves, barbecues, barbecue complexes, ceramics kilns, and blacksmith forges.
- Hearth Arrangement and Furnace Lining: Utilize these fire bricks for both arranging the hearth of the furnace and lining the inner surface. Ensure optimal insulation and protection for your heating unit, extending its lifespan and improving performance.
- Use with Alumina Mortar/Fireclay: Refractory masonry requires a fireclay/alumina mortar, such as GIRtech Ready Mix or GIRtech Dry Mix. Prior to installation, moisten the contact surface with water. Avoid using cement mixes as a masonry mortar.
- Cuttable and Processable: GIRtech USM fire bricks can be easily cut or processed with a special tool, allowing for customization and precise fitting as needed.
- Suitable for Domestic Use: These fire bricks are intended for domestic heating units and not for use in industrial units where contact with molten metals is possible. Ideal for enhancing the performance and efficiency of your home heating systems.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Form | Pellet |
| Flavor | Natural Wood |
| Material Fabric | Wood |

## Product Details

- **Brand:** GIRtech
- **Flavor:** Natural Wood
- **Item Weight:** 6.9 Kilograms
- **Item Form:** Block
- **UPC:** 601958244845

## Images

![GIRtech USM-4 Heavy Duty Firebricks 4-Pack Fireclay, Chamotte 3000F US Stove 9" x 4-1/2" x 1-1/4" Insulating, Replacement Fire Bricks for Fireplaces, Wood Stoves, Pizza Ovens, Steel Furnaces, Forge - Image 1](https://m.media-amazon.com/images/I/81IOXQLWiVL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- GIRtech USM-4 Heavy Duty Firebricks 4-Pack Fireclay, Chamotte 3000F US Stove 9" x 4-1/2" x 1-1/4" Insulating, Replacement Fire Bricks for Fireplaces, Wood Stoves, Pizza Ovens, Steel Furnaces, Forge
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**Shop now:** [https://www.desertcart.sg/products/621385023-girtech-usm-4-heavy-duty-firebricks-4-pack-fireclay-chamotte](https://www.desertcart.sg/products/621385023-girtech-usm-4-heavy-duty-firebricks-4-pack-fireclay-chamotte)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-22*