INSTALLATION
EXTERIOR VENT TERMINATION REQUIREMENTS
INSTALLATION
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| Minimum Clearance Requirements | Canada1 | USA2 |
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| A | Clearance above grade, veranda, porch, deck, or balcony | 12"(30cm) | 12"(30cm) |
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| B | Clearance to window or door that may be opened | 12"(30cm) | 9" (23cm) |
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| C | Clearance to permanently closed window | * | * |
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| D | Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet (61cm) | 24"(60cm) | 24"(60cm)) |
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| E | Clearance to unventilated soffit | 24"(60cm) | 24"(60cm) |
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| F | Clearance to outside corner: with AstroCap Termination Cap. | 13"(33cm) | 13"(33cm) |
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| Clearance to outside corner: with all other approved Termination Caps. | 13"(33cm) | 13"(33cm) |
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| G | Clearance to inside corner: with AstroCap Termination Cap | 13"(33cm) | 13"(33cm) |
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| Clearance to inside corner: with all other approved Termination Caps. | 13"(33cm) | 13"(33cm) |
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| H | Clearance to each side of center line extended above meter/regulator assembly | 36"(90cm)a | * |
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| J | Clearance to service regulator vent outlet | 36"(90cm) | * |
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| K | Clearance to | 12"(30cm) | 9" (23cm) |
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| L | Clearance to a mechanical air supply inlet | 72"(1.8m) | 36"(90cm)b |
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| M | Clearance above paved sidewalk or a paved driveway located on public property | 84"(2.1m)┼ | * |
| N | Clearance under veranda, porch, deck, or balcony | 12"(30cm)‡ | * |
1 | In accordance with current CSA B149.1, Natural Gas and Propane Installation Code |
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2 | In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code |
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┼ A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor * Clearance in accordance with local installation codes and the requirements of the gas supplier
a 3 feet (91cm) within a height of 15 feet (4.5m) above the meter / regulator assembly b 3 feet (91cm) above - if within 10 feet (3m) horizontally
14 | Regency® |