At 07:34 AM 12/9/03 +1100, you wrote:
>>firebrick
There are two general types:
Masonry firebrick - heavy (dense), yellow to white, always made of clay
Refractory Liner - lighter, cream to white, not always made of clay
For our purposes both will do essentially the same thing but my own
preference for a hearth would be for the masonry firebrick because it will
stand up to having stuff laid and flopped around upon it much better than
refractory and most people can get it cheaply (ie 92 cents) at the local
brickyard.
In my hearth I use some old clay masonry firebrick which was salvaged out
of a 70 year old boiler firebox and in that case would have been in
"refractory" use, so there appears to be no hard and fast rule.
Regards,
Harry
