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Throat Tile
These durable throat tiles reinforce high-velocity flame zones with stable, long-lasting resistance against deterioration.
*These tiles are compatible with Cleaver-Brooks boilers.
- 94-120Throat Tile48"CB-OS50-100
- 94-217Throat Tile48"CB-NS50-80
- 94-218Throat Tile48"CB-NS100-125
- 94-386Throat Tile48"CB-OS50-125A
- 94-388Throat Tile48"CBH50-100
- 94-130Throat Tile60"CB125-200
- 94-1014Throat Tile60"CBEX-E150-200
- 94-752Throat Tile67"4WI125-200
- 94-1038Throat Tile67"CBEX-E250-350
- 94-343Throat Tile78"CB250-350
- 94-449Throat Tile78"LE250-350
- 94-798Throat Tile78"CBEX-E250-3005-9
- 94-1037Throat Tile78"CBEX-E350-400
- 94-643Throat Tile85"4WI350-400
- 94-1010Throat Tile85"CBEX-E500-600
- 94-1036Throat Tile92"CBEX-E700-800
- 94-344Throat Tile96"CB400-800
- 94-429Throat Tile96"LE400-800
- 94-451Throat Tile96"LE400-800
- 94-655Throat Tile106"4WI700-800
- 94-938Throat Tile106"CBEX-E1100-1200
- 94-1062Throat Tile106"CBEX-E900-1000
- 94-310Throat Tile
- 94-311Throat Tile
- 94-312Throat Tile
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In-stock items. Order by 3:00 PM EST for Same-Day Shipping.
*Halmar Corporation offers many Cleaver-Brooks aftermarket parts. Halmar Corporation is not a factory authorized sales representative for Cleaver-Brooks, nor is Halmar Corporation affiliated with Cleaver-Brooks in any way. Cleaver-Brooks is a registered trademark of Cleaver-Brooks, Inc., Thomasville, GA.
Some aftermarket parts may be made by other manufacturers.
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We carry a large inventory and if we don’t have what you need, we can help track it down for you. Give us a call.

Frequently Asked Questions About Throat Tiles
What is a boiler throat tile and what is its primary purpose?
A boiler throat tile is a high-performance refractory component specifically molded to line the initial combustion opening, or throat, of a burner assembly. Its primary purpose is to deliver exceptional radiant heat protection directly at the point of ignition. By forming a rugged, continuous insulation ring where the fuel flame develops, these specialized boiler refractory tiles stabilize the initial air-fuel boundary, optimize combustion efficiency, and protect the surrounding front inner door and steel framework from extreme thermal fatigue.
What are the main indicators that a throat tile requires replacement?
Because the throat entry area is continuously exposed to direct, high-velocity flame contact, it handles the most aggressive thermal stress and cycling within the furnace chamber. During routine seasonal turnarounds or scheduled fireside cleanouts, maintenance teams should check the throat area for deep structural cracking, crumbling joints, or advanced spalling (surface chipping). If fragments break off or erode significantly, the altered dimensional shape will disrupt the burner’s air velocity and allow intense radiant heat to warp the front inner door assembly, indicating that a replacement boiler refractory tiles installation is urgently required.
Why source aftermarket throat tiles from Halmar instead of a factory OEM?
Sourcing proprietary or model-specific insulation profiles directly from factory original equipment manufacturers (OEMs) frequently forces procurement managers to face long factory lead times, distributor backorders, and steep price inflation. Halmar functions as an independent, domestic manufacturer that controls the complete high-temperature casting and curing process internally at our modern facility in Louisville, Kentucky. We carry a massive catalog of premium aftermarket boiler parts on our shelves, allowing us to supply exceptional material longevity, perfect dimensional matching, and fast same-day shipping to minimize critical asset downtime.
