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MODELS 250, 251
Input: 250,000, 251,000
Draft Hood: 6"
Number
of Heaters
2
3
4
MODEL 275
Input: 275,000 Btuh
Draft Hood: 6"
Numbers
of Heaters
2
3
4
MODEL 305
Input: 305,000 Btuh
Draft Hood: 8"
Number of
Heaters
2
3
4
MODEL 365, 400
Input: 365,000, 399,000
Draft Hood: 8"
Number of
Heaters
2
3
4
MODEL 500
Input: 500,000 Btuh
Draft Hood: 8"
Number of
Heaters
2
3
4
TECHNICAL DATA VENTING, TABLE 3 (Continued)
Input Btuh
250/251,000
250/251,000
250/251,000
Combined Input
in Thousands of Btuh
480
500/502
720
750/753
960/1000/1004
Input Btuh
275,000
275,000
Combined Input
in Thousands of Btuh
550
825
1100
Input Btuh
315,000
305,000
365,000
Combined Input
in Thousands of Btuh
610
915
1220
Input Btuh
365,000
400,000
365,000
400,000
365,000
400,000
Combined Input
in Thousands of Btuh
730
800
1095
1200
1460
1600
Input Btuh
500,000
500,000
500,000
Combined Input
in Thousands of Btuh
1000
1500
2000
Total Vent Height (Feet)
6
8
Rise
Vent Connector Diameter (in inches)
1 Ft.
-
-
-
-
3 Ft.
-
8
Manifold and Common Vent Diameter (In inches)
14
12
14
12
14
14
16
14
18
16
Total Vent Height (Feet)
6
8
10
Rise
Vent Connector Diameter (in inches)
2 Ft.
-
-
3 Ft.
-
-
Manifold and Common Vent Diameter (in inches)
-
-
-
-
-
-
6
8
Rise
Vent Connector Diameter (in inches)
1 Ft.
-
-
2 Ft.
10
10
3 Ft.
10
10
Manifold & Common Vent Diameter
14
14
16
16
18
18
Total Vent Height (Feet)
6
8
10
Rise
Vent Connector Diameter (in inches)
1 Ft.
-
-
-
-
2 FT.
12
12
12
12
3 FT.
10
10
12
10
Manifold & Common Vent Diameter (inches)
14
14
16
14
18
18
18
18
20
20
22
20
Total Vent Height (Feet)
6
8
10
Rise
Vent Connector Diameter (in inches)
2 Ft.
-
12
4 Ft.
12
12
6 Ft.
N/A
12
Manifold & Common Vent Diameter (inches)
18
16
22
20
24
22
12
10
15
20
30
50
-
-
-
-
-
8
8
8
8
8
-
8
12
10
10
10
12
10
10
10
10
14
12
12
12
10
14
14
12
12
10
16
14
14
14
12
15
20
30
50
100
-
-
-
8
-
8
8
8
-
12
10
10
10
-
14
14
12
12
-
16
14
14
12
Total Vent Height (Feet)
10
15
20
30
50
10
10
10
10
10
10
10
10
10
10
10
10
8
12
12
12
10
10
16
14
14
12
12
16
16
16
14
14
15
20
30
50
100
-
-
-
10
10
-
-
-
-
10
10
10
10
10
10
12
12
10
10
10
10
10
10
10
10
10
10
10
10
10
14
12
12
12
10
14
14
12
12
10
16
16
14
14
12
18
16
16
14
14
18
18
16
16
14
20
18
18
16
14
15
20
30
50
100
12
12
12
12
12
12
12
12
12
10
12
12
12
12
10
16
14
14
14
12
20
18
16
16
14
22
20
20
18
16
100
8
8
8
8
7
7
8
8
8
10
10
12
8
8
8
8
10
12
12
100
10
8
8
8
8
10
12
12
10
10
10
10
10
10
10
10
12
12
12
14
12
10
10
12
12
14
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