Firebrick sizes - help with source

1910Home

New Member
Jan 14, 2019
22
Pomona, CA
Currently doing some restoration work on a traditional wood-burning fireplace which I believe was rebuilt in the mid-80s.

Having a hard time sourcing the firebrick as I had to remove the back wall and a large majority of the brick is broken. Any advice on the size of fire brick is greatly appreciated! Trying to stick with this without changing size to match the two sidewalls.

Size is 150mm x 75mm x 30mm

Also, is there an easy way to remove old mortar from the bricks to reuse them? Any tips appreciated!

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EatenByLimestone

Minister of Fire
Jul 12, 2006
7,326
Schenectady, NY
Your local concrete yard should have them.
 
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Ashful

Minister of Fire
Mar 7, 2012
15,727
Philadelphia
I just buy a common size and cut them to fit on a cheap tile saw or with a diamond masonry blade in my angle grinder. Takes seconds, and I never knew one could buy all the odd sizes used in my stoves.
 

bholler

Chimney sweep
Staff member
Jan 14, 2014
21,406
central pa
I just buy a common size and cut them to fit on a cheap tile saw or with a diamond masonry blade in my angle grinder. Takes seconds, and I never knew one could buy all the odd sizes used in my stoves.
That is a whole lot of brick to cut down to size. And firebrick eats up cheap diamond blades in a hurry.
 
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bholler

Chimney sweep
Staff member
Jan 14, 2014
21,406
central pa
Currently doing some restoration work on a traditional wood-burning fireplace which I believe was rebuilt in the mid-80s.

Having a hard time sourcing the firebrick as I had to remove the back wall and a large majority of the brick is broken. Any advice on the size of fire brick is greatly appreciated! Trying to stick with this without changing size to match the two sidewalls.

Size is 150mm x 75mm x 30mm

Also, is there an easy way to remove old mortar from the bricks to reuse them? Any tips appreciated!

View attachment 238838
Start by going to local masonry yards. If they don't have them they should be able to get them.
 
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Ashful

Minister of Fire
Mar 7, 2012
15,727
Philadelphia
That is a whole lot of brick to cut down to size. And firebrick eats up cheap diamond blades in a hurry.
Got it. In my case, it's just a few oddballs, most of the firebox uses common size.
 

HomeinPA

Minister of Fire
Jan 4, 2018
510
Central PA
Currently doing some restoration work on a traditional wood-burning fireplace which I believe was rebuilt in the mid-80s.

Having a hard time sourcing the firebrick as I had to remove the back wall and a large majority of the brick is broken. Any advice on the size of fire brick is greatly appreciated! Trying to stick with this without changing size to match the two sidewalls.

Size is 150mm x 75mm x 30mm

Also, is there an easy way to remove old mortar from the bricks to reuse them? Any tips appreciated!

View attachment 238838
Remove them all and rebuild it with normal firebrick. You're over halfway there already.
 

bholler

Chimney sweep
Staff member
Jan 14, 2014
21,406
central pa
The bad part is no matter how good you do the firebox you will still have a questionable double flue setup that may or may not work. There is a very good reason the quotes to reduild your fireplace were so high. I really hope it works out for you.
 
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HomeinPA

Minister of Fire
Jan 4, 2018
510
Central PA
The bad part is no matter how good you do the firebox you will still have a questionable double flue setup that may or may not work. There is a very good reason the quotes to reduild your fireplace were so high. I really hope it works out for you.
I knew that looked familiar.