Fahrenheit Firing Schedules for Thick Projects

Please note: the schedules below are guidelines only, not strict rules. Times and temperatures may be adjusted based on the nature of your project. To use these schedules for slumping, set the target temperature in the "variable" step to 1235 - 1250 depending on your desired results.
1/2 -inch Thick
Step
Rate
(per hour)
Target Temp.
Hold
(minutes)
1
100
300
15
2
250
1050
10
3
*variable
1500
desired effect
4
as fast as possible
950
90
5
100
800
10
6
600
100
0
*This rate varies based on what you want to accomplish. For instance, heat faster to fire polish, slower to minimize air bubbles.
1 -inch Thick
Step
Rate
(per hour)
Target Temp.
Hold (minutes)
1
100
300
15
2
200
600
15
3
300
1050
15
4
*variable
1500
desired effect
5
as fast as possible
950
120
6
30
800
15
7
50
700
10
8
250
100
0
*This rate varies based on what you want to accomplish. For instance, heat faster to fire polish, slower to minimize air bubbles.
1.5 -inch Thick
Step
Rate
(per hour)
Target Temp.
Hold (minutes)
1
100
300
25
2
200
600
25
3
300
1050
20
4
*variable
1500
desired effect
5
as fast as possible
950
180
6
12
800
15
7
24
700
10
8
120
100
0
*This rate varies based on what you want to accomplish. For instance, heat faster to fire polish, slower to minimize air bubbles.
2 -inch Thick
Step
Rate
(per hour)
Target Temp.
Hold (minutes)
1
100
300
40
2
200
600
40
3
300
1050
30
4
*variable
1500
desired effect
5
as fast as possible
950
240
6
8
800
30
7
16
700
30
8
65
100
0
*This rate varies based on what you want to accomplish. For instance, heat faster to fire polish, slower to minimize air bubbles.