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

Great bricks but a little thin. They work great with cement blocks.

Good replacement for the fire bricks that came in my Lopi Revere.

These fire bricks work as advertised. Heat transmission from front to back is low. They can be 1000 degrees on one side and 200 degrees on the other. They come in foam cushingung so they do not break.

These worked very well for me. No cutting, and fit into the old cracked ones same locations. I have already had several fires in my woodburning insert with no issues. As for delivery, I had a very minor issue with one brick's corner being brok off, it was less then a half inch. Came on time too.

Bien

These stand up to the heat of my blacksmithing forge. Others I have used from big-box stores have essentially melted. They look good and work great!

I replaced my original Wonderwood bricks with these. They were the same heavy duty bricks that lasted for years. Highly recommend these over the less compaction bricks that will not last very long.

Very please with purchase, satisfied customer.

High quality replace bricks for my wood stove. Very pleased with the final result. Thanks.

Heavy and looks more durable than the ones l bought here in town and they are the same price,lm very pleased and can't wait to use them

Bought these to replace a broken firebrick on the bottom of my forge, and to add additional for sliding doors on the front. Most of the hardware store bricks will only do up to 2200F, which isn't high enough. They'll crack and break within one or two firings. These bricks so far have held up to forge welding temps (no actual forge welding yet, so no word on how flux treats them). They extremely durable too. One out of the five came with a hairline crack in it, and even with it falling onto the ground from about 3ft up, it wasn't even phased and is still unbroken (it's one of the doors right now). All in all, these bricks are strong, hold up to the heat, and are priced equally to the hardware store bricks that don't meet the same temps. Worth every penny. Only shame is that my first order of them went missing after customs, so this is technically the second batch. Seller refunded the first order quickly though, so everything has been great on this end.

Good heavy firebrick. Heavier than those I removed from an Alderlea woodstove. They are 1/16" or so wider and taller than 9 x 4 inches.... be prepared to trim them if this matters to your woodstove.

4 bricks were broken out of 10. Returned one pack. It would be OK if I had to replace horizontal bricks, but I need to replace vertical. Bad packing and/or handling. Otherwise I liked the product.