---
product_id: 419961024
title: "Lynn ManufacturingInsulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 1.25\" x 4.5\" x 9\" Split, Pack of 2, 2300-F Rated, for Kilns, Forges, Furnaces, Soldering, 3143R"
price: "€ 98.53"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/419961024-lynn-manufacturinginsulating-fire-brick-heat-insulation-block-low-thermal-conductivity
store_origin: NL
region: Netherlands
---

# Lynn ManufacturingInsulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 1.25" x 4.5" x 9" Split, Pack of 2, 2300-F Rated, for Kilns, Forges, Furnaces, Soldering, 3143R

**Price:** € 98.53
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Lynn ManufacturingInsulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 1.25" x 4.5" x 9" Split, Pack of 2, 2300-F Rated, for Kilns, Forges, Furnaces, Soldering, 3143R
- **How much does it cost?** € 98.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/419961024-lynn-manufacturinginsulating-fire-brick-heat-insulation-block-low-thermal-conductivity)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Lynn ManufacturingInsulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 1.25" x 4.5" x 9" Split, Pack of 2, 2300-F Rated, for Kilns, Forges, Furnaces, Soldering, 3143R

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B089LK76BT |
| Best Sellers Rank | #536,776 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #552 in Pipe Insulation |
| Customer Reviews | 4.6 4.6 out of 5 stars (91) |
| Date First Available | June 3, 2020 |
| Item Weight | 4.4 pounds |
| Manufacturer | Lynn Manufacturing |
| Product Dimensions | 9 x 4.5 x 0.04 inches |
| UPC | 810527033968 |

## Product Details

- **Brand:** Lynn Manufacturing
- **Item Thickness:** 4.5 Inches
- **Material:** Ceramic
- **Product Dimensions:** 9"L x 4.5"W

## Images

![Lynn ManufacturingInsulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 1.25" x 4.5" x 9" Split, Pack of 2, 2300-F Rated, for Kilns, Forges, Furnaces, Soldering, 3143R - Image 1](https://m.media-amazon.com/images/I/91pgiTVMBkL.jpg)

## Questions & Answers

**Q: The title says "Pack of two", but there are choices of 4 and 12... what is the actual number of bricks involved in a purchase?**
A: The 1-pack has 1x brick. The 2-pack has 2x bricks. The 4-pack has 4x bricks. The 12-pack has 12x bricks.

**Q: When will these be back in Stock?**
A: Not sure yet, depends on suppliers.

**Q: Could these be used to hold the bottom of a hot food grill above a combustible material without allowing it to combust?**
A: There are many factors at play here, so we cannot give you an answer on how much insulation you need, or if it will work. Yes, this material will stand up to the temperatures of a grill, but that doesn't mean that the grill won't catch a combustible surface on fire. Without knowing if your grill is designed to be used in such an application and not leak greases, contain sparks or embers, it's just not something we can advise on.

**Q: Can i use this as the base and siding of an outdoor firepit in florida and not crack?**
A: It may work, but they are not meant to be exposed to the elements. While many listings seem to advertise these light, insulating firebricks for use in fire pits, they will absorb water, and then when exposed to the heat of the fire will likely crack. I believe you would have better luck with a heavy duty firebrick.

## Frequently Bought Together

- Lynn Manufacturing Insulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 1.25" x 4.5" x 9" Split, Pack of 2, 2300-F Rated, for Kilns, Forges, Furnaces, Soldering, 3143R
- Ceramic Fiber Insulation, 1" Thick x 16" x 48", 2400F Fireproof Insulation Blanket, 3026E
- High Temperature Adhesive, 2000F Rated, Sodium Silicate, Water Glass, 40% Solution, 4oz Bottle, 5602 Clear

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/419961024-lynn-manufacturinginsulating-fire-brick-heat-insulation-block-low-thermal-conductivity](https://www.desertcart.nl/products/419961024-lynn-manufacturinginsulating-fire-brick-heat-insulation-block-low-thermal-conductivity)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-25*