Are these waterproof? can i use in an outdoor bbq?

Vitcas say suitable for indoor and outdoor use ovens and barbecues. Once in situ you could use concrete waterproofer to seal them but check with Vitcas first before application they will inform you if this is required.

I have just received these and they look very flimsy, I want a firebrick as a base for my wood fired oven which has a grill not a solid base, will the

They need to set on a solid base as they do break easily. If applying to concrete they need to be soaked in water first so that they do not dry out the mortar. They would not be suitable for a grill they need a firm base for support.

I just used a normal wood saw. The cut really easy too.

Would these be suitable to stand a kamado grill bbq on to protect a wooden shelf below?

I use these bricks on my work bench to braze metal objects on. I have a blow torch full on and even though the bricks can get red hot I have not burnt the top of my bench yet ! If you have enough bricks to cover the whole surface I would say they would probably be OK.

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VITCAS Set of 6 Fire Bricks -Up to 1000 degree Celsius - Premium Material - High Density - Low Thermal Conductivity - Replacement Box - For Stoves & Fireplaces – Standard Firebricks

VITCAS Set of 6 Fire Bricks -Up to 1000 degree Celsius - Premium Material - High Density - Low Thermal Conductivity - Replacement Box - For Stoves & Fireplaces – Standard Firebricks

Product ID: 208737655

Details

Brand
VITCAS
Flavour
Coffee
Item form
Block
Item weight
3 Kilograms
Material
Vermiculite

🔥Heat resistant up to 1000°C

🧱High-density vermiculite build

❄️Low thermal conductivity for energy efficiency

₩211838

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Description

🔥 Elevate your heat game with VITCAS fire bricks – where performance meets style!

VERSATILE STYLISH - Perfect for fireplaces, wood-fired ovens, BBQs, and furnaces with a smooth, decorative finish that elevates indoor ambiance.
ULTIMATE HEAT SHIELD - Withstands scorching temperatures up to 1000°C, protecting your stove or fireplace with premium durability.
LIGHTWEIGHT POWERHOUSE - Each brick weighs just 500g, combining high density with easy handling for hassle-free upgrades.
ENERGY SMART INSULATION - Low thermal conductivity means less heat loss and more warmth where it counts—your living space.
PERFECT FIT EVERY TIME - Standardized 200 x 90 x 25mm dimensions ensure seamless replacement and easy installation.

The VITCAS Set of 6 Fire Bricks features premium vermiculite construction designed to withstand extreme heat up to 1000°C. These lightweight, high-density bricks offer low thermal conductivity for superior energy efficiency, making them ideal for fireplaces, stoves, wood-fired ovens, and BBQs. With smooth surfaces and standardized dimensions, they provide both functional durability and decorative appeal for indoor and outdoor heating applications.

Specifications

ASIN	B0893HSVW8
Best Sellers Rank	236,670 in DIY & Tools ( See Top 100 in DIY & Tools ) 58 in Bricks & Blocks
Brand	VITCAS
Brand Name	VITCAS
Customer Reviews	4.3 out of 5 stars 268 Reviews
Flavour	Coffee
Item Form	Block
Item Weight	3 Kilograms
Item form	Block
Item weight	3 Kilograms
Manufacturer	VITCAS
Material	Vermiculite
Material Type	Vermiculite
Unit Count	6.0 count
Unit count	6.0 count

Reviews

A**R

Fire bricks

Great product and quick delivery

22.11.2025

B**L

Alternative

Put my bin incinerator on top of these bricks, works a treat.

13.09.2025

A**R

Fire bricks

Replacement fire bricks, not an exact replacement but good enough to do the job. All in place, very easy to fit in place, time will show if they are as good as the originals. Thank you

28.12.2023

S**Y

Excellent

Excellent product, this was my second order, ideal for adding insulation to my offset smoker.

18.07.2025

A**R

good but fragile

arrived quickly, handles the heat well, but easy to damage when moving material around in my forge

16.08.2021

R**S

Cost effective open fire place repair

Saved me spending £550 on replacing bricks in an open fireplace by the chimney sweep company. I didn't even have to paste then in, just jig-sawed it!

12.01.2026

K**.

Exactly as advertised - great fire bricks!!

Got these to help project the heat into the room from my open fire. Size is spot and abs they work so well. Changed nothing about how I build a fire but much more heat reflects into the room. Good price also and arrived direct within a few days

8.04.2022

R**R

Good quality

Good quality very light the size is ideal for my fire place which has metal supports

6.02.2024

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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I loved the variety of products available. Will definitely shop again.

2 months ago

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₩211838

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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