Overview of Primary Product

Page 3
Total Input of
Appliance
Maximum Equivalent Feet of Duct Pipe
(BTU/hr) 4” Pipe 5” Pipe 6” Pipe
50,000 230 300 300
60,000 160 300 300
70,000 105 300 300
80,000 70 214 300
90,000 40 122 300
100,000 25 76 180
110,000 15 46 80
CAS-4JR SIZING CHART
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
50,000 60,000 70,000 80,000 90,000 100,000 110,000
Input Firing Rate, BTU/hour
Max. Eqivalent Duct Length, feet
Max. equivalent length of 4" pipe
available when using the 4" CAS hood
Max. equivalent length of 6" pipe
available when using the 4" CAS hood
Diagram A
Table 1