Fan and Heater VANE AXIAL GAS HEATER SPECIFICATONS
High Temperature Heater Specifications
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| 18" | 24" | 26" | 28" |
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All models | Inside diameter | 18.5/16" | 24.1/4" | 26.5/16" | 28.1/8" |
| Bolt circle diameter | 19.7/16" | 25.3/4" | 27.15/16" | 29.5/8" |
| Length | 22" | 22.1/2" | 22.1/4" | 25.1/4" |
| BTU rating | 1400000 | 2100000 | 2700000 | 3000000 |
| Weight | 81 | 110 | 115 | 140 |
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Liquid models | Maximum fuel flow (GPH) | N/A | 23 | 30 | 34 |
| Orifice | N/A | 3/16" | 7/32" | 15/64" |
| Minimum operating pressure | N/A | 2 | 2 | 2 |
| Maximum operating pressure | N/A | 20 | 20 | 20 |
| Minimum line size | N/A | 3/8" | 3/8" | 3/8" |
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| Maximum fuel flow (CFH) | 585 | 877 | 1128 | 1253 |
Vapor models | Orifice | 5/32" | 3/16" | 7/32" | 15/64" |
| Minimum operating pressure | 2 | 2 | 2 | 2 |
| Maximum operating pressure | 20 | 20 | 20 | 20 |
| Minimum line size | 1/2" | 3/4" | 3/4" | 3/4" |
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| Maximum fuel flow (CFH) | 1473 | 2210 | 2842 | 3157 |
| Orifice | 1/4" | 5/16" | 23/64" | 3/8" |
Natural gas | Minimum operating pressure | 1 | 1 | 1 | 1 |
models | Maximum operating pressure | 7 | 7 | 7 | 7 |
| Minimum line size | 3/4" | 1" | 1.1/4" | 1.1/4" |
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Low Temperature Heater Specifications
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| 18" | 24" | 26" | 28" |
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All models | Inside diameter | 18.5/16" | 24.1/4" | 26.5/16" | 28.1/8" |
| Bolt circle diameter | 19.7/16" | 25.3/4" | 27.15/16" | 29.5/8" |
| Length | 22" | 22.1/2" | 22.1/4" | 25.1/4" |
| BTU rating | 400000 | 500000 | 500000 | 500000 |
| Weight | 81 | 110 | 115 | 140 |
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Vapor models | Maximum fuel flow (GPH) | 167 | 292 | 292 | 292 |
| Orifice | 5/64" | 3/32" | 3/32" | 3/32" |
| Minimum operating pressure | 2 | 2 | 2 | 2 |
| Maximum operating pressure | 20 | 20 | 20 | 20 |
| Minimum line size | 3/8" | 3/8" | 3/8" | 3/8" |
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| Maximum fuel flow (CFH) | 421 | 736 | 736 | 736 |
Natural gas | Orifice | 9/64" | 5/32" | 5/32" | 5/32" |
models | Minimum operating pressure | 1 | 1 | 1 | 1 |
| Maximum operating pressure | 7 | 7 | 7 | 7 |
| Minimum line size | 1/2" | 1/2" | 1/2" | 1/2" |
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