steam boiler fire temp

GenoC

I have a new customer who needs their old, low pressure steam boiler religned with fire brick. I can't fire right now due to gas valve issues as well. So I need to estimate their fire chamber temp to get the right fire brick. Of course no information of any kind. It is an old Kewaunee, converted from coal once upon a time to strictly gas now.
I figured 2500* brick would be adequate, would like approval or disapproval of this from some wise ones on this site. Thank you in advance for your help.

Al Letellier_9

fire temp

Who makes the burner? They should be able to tell you the temp of the flame. Wouldn't replacing the boiler be a better option? An old Kewanee boiler can't be that efficient.

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Steamhead (in transit)

I believe

a natural gas flame is 1800º F or so. So the bricks you mention should be fine.

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Unknown

Firebrick

A gas flame can typically run from 3000 degrees to 3300 degress depending on combustion conditions.

Standard 2500 degree Babcok and Wilcox fire brick is acceptable for building a chamber. By the way building a chamber is an art so I hope you are an artist!