Vertical Height (Extension Kit)
It is simple to determine which kit is needed for vertical height. Take the total height (to the top of the flue) required and comparing that to “F dimension” in the chart #1, it can be determined which kit needs to be used vertically.
FIGURE 11.
FIGURE 12.
CHART #1.
| BTU’s |
|
| DIMENSION “F” (IN INCHES) |
| |||||
*Gal. | in 1000’s | 9000687 |
| 9001246 |
| 9001247 | 9001248 | |||
Cap. | Nat/L.P | STD. | MIN. | MAX. | MIN. | MAX. | MIN. | MAX. | ||
40 | 36/36 | 63 3/4 | 72 | 77 | 77 | 88 | 88 | 110 | ||
50 | 38/38 | 72 | 80 3/4 | 86 | 86 | 1/4 | 97 1/4 | 97 1/4 | 118 3/4 | |
40 | 40/40 | 63 3/4 | 72 | 77 | 77 | 88 | 88 | 110 | ||
50 | 48/44 | 76 | 84 | 1/4 | 89 3/4 | 89 3/4 | 100 3/4 | 100 3/4 | 122 3/4 | |
75 | 55 NAT. | 76 1/4 | 84 | 1/2 | 89 1/2 | 89 | 1/2 | 100 1/2 | 100 1/2 | 122 1/2 |
| BTU’s |
| DIMENSION “F” (IN CENTIMETERS) |
| ||||
*Gal. | in 1000’s | 9000687 | 9001246 | 9001247 | 9001248 | |||
Cap. | Nat/L.P | STD. | MIN. | MAX. | MIN. | MAX. | MIN. | MAX. |
40 | 36/36 | 162 | 183 | 196 | 196 | 224 | 224 | 279 |
50 | 38/38 | 183 | 205 | 218 | 219 | 247 | 247 | 302 |
40 | 40/40 | 162 | 183 | 196 | 196 | 224 | 224 | 279 |
50 | 48/44 | 193 | 214 | 228 | 228 | 256 | 256 | 312 |
75 | 55 NAT. | 194 | 215 | 227 | 227 | 255 | 255 | 311 |
*Check the model and rating plate attached to the water heater for specific model number and other detailed information.
Horizontal (Extension Kit)
To determine the horizontal length and extension kit needed, simply plug the dimensions “D” and “G” into the equation below. The answer “E” should then be located in Chart #2. The size range in which “E” dimension falls indicates the kit that should be used horizontally to obtain the desired length.
“D” = The wall thickness
“G” = The distance wanted between the edge of the water heater and the inside edge of the wall
“E” = The distance the extension kit must be able to extend
The Equation: D + G = E
FIGURE 13.
CHART #2.
DIMENSION “E” (IN INCHES)
|
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|
|
| 75 GAL. | |||||||
VENT KITS |
|
| MIN |
| MAX |
| MIN |
|
|
| MAX | ||||
| 3 1/2 |
| 10 |
| 7/8 |
|
| 7 3/8 | |||||||
9001246 |
|
|
| 10 |
| 15 1/2 |
| 7 3/8 |
|
| 12 7/8 | ||||
9001247 |
|
| 15 1/2 |
| 26 1/2 |
| 12 7/8 |
|
| 23 7/8 | |||||
9001248 |
|
| 26 1/2 |
| 48 |
| 23 7/8 |
|
| 45 3/8 | |||||
|
|
|
|
|
|
|
|
|
|
| |||||
|
|
|
| DIMENSION “E” (IN CENTIMETERS) |
|
| |||||||||
|
|
|
|
|
|
|
| 75 GAL. | |||||||
VENT KITS |
| MIN |
| MAX |
| MIN |
|
|
| MAX | |||||
| 8.9 cm |
| 25.4 cm |
| 2.2 cm |
| 18.7 cm | ||||||||
9001246 |
|
| 25.4 cm |
| 29.4 cm |
| 18.7 cm |
| 32.7 cm | ||||||
9001247 |
|
| 39.4 cm |
| 67.3 cm |
| 32.7 cm |
| 60.6 cm | ||||||
9001248 |
|
| 67.3 cm | 121.9 cm |
| 60.6 cm |
| 115.3 cm | |||||||
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| ||||||
| BTU’s |
|
| DIMENSION “A, B, C” (INCHES/CENTIMETERS) | |||||||||||
*Gal. | in 1000’s |
|
|
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|
|
|
|
|
|
|
|
|
|
|
Cap. | Nat. |
|
|
|
| A |
|
| B |
|
| C | |||
40 | 36/36 |
| 48 3/4” |
| 124 cm |
| 41 3/4” |
| 106 cm | 21” |
| 53 cm | |||
50 | 38/38 |
| 57 1/2” |
| 146 cm |
| 50 1/2” |
| 128 cm | 21” |
| 53 cm | |||
40 | 40/40 |
| 48 3/4” |
| 124 cm |
| 41 3/4” |
| 106 cm | 21” |
| 53 cm | |||
50 | 48/44 |
| 61” |
| 155 cm |
| 54” |
| 137 cm | 21” |
| 53 cm | |||
75 | 55 NAT. |
| 63” |
| 160 cm |
| 54 3/4” |
| 139 cm | 26 1/4” | 67 cm | ||||
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