Refractory Bricks
Refractory Bricks includes the RB-40 fireclay refractory bricks and ILTEX-0.4 ultralight insulation bricks available in our store. This collection is organized by packaging size so customers can quickly choose the right quantity for repairs, fireplace and stove work, furnace lining, insulation, and other high-temperature applications.
RB-40 bricks are dense fireclay refractory bricks for durable heat-resistant lining and repair work. ILTEX-0.4 bricks are lightweight insulating fire bricks designed to reduce heat loss and improve thermal efficiency.
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RTH-USA RB-40 Fireclay Refractory Bricks (box of 6)
RTH-USA RB-40 Fireclay Refractory Bricks (box of 3)
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks (pack of 6)
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks (pack of 2)
Your Warmth, Our Care
Everything your fireplace needs – in one place. Whether you are building a brand-new fireplace, upgrading an existing one, or repairing what time and heat have worn down, we provide the right solutions to make the job easier and the results more reliable. From ready-to-use mortars like UNIREF-40, to high-performance fireclay mortars such as MORTACLAY-40d, and durable firebricks like RB-40, you’ll find professional-grade products designed to withstand extreme temperatures and deliver long-lasting performance. But our selection doesn’t end there – we offer a wide range of refractory materials, repair solutions, and accessories to fit projects of every size.
RTH-USA UNIREF-40 Ready-to-Use Refractory Mortar - 10 fl.oz.
RTH-USA MORTACLAY-40d Fireclay Refractory Mortar 50 lb
RTH-USA RB-40 Fireclay Refractory Bricks (box of 6)
Built for Performance
Designed for Simplicity
With our products you can be confident that your fireplace or stove won’t just look good, but will also remain safe, efficient, and strong for years to come. Easy to use, engineered for durability, and available in practical package sizes, our lineup makes fireplace construction and repair straightforward – whether you are a professional builder or a homeowner tackling a personal project.
Because when it comes to warmth, comfort, and peace of mind, every detail matters – and we’ve got you covered.
