8. Vent Pipe Installation (Indoor Installation Only)
[ For
WARNING
CARBON MONOXIDE POISONING
Follow all vent system requirements in accordance with relevant local or state regulation, or, in the absence of local or state code, in the U.S. to the National Fuel Gas Code ANSI
Be sure to do | Z233.1/NFPA 54 – latest edition, and in Canada, in accordance with NSCNGPI. |
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Vent Piping
•Use only UL listed category III vent materials.
•Follow the vent pipe manufacturer's installation instructions.
Pipe diameter | 100mm (4") |
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No. of Elbows | Max. Straight Vent Length |
3 | 4.6m (15') |
2 | 8.2m (27') |
1 | 11.7m (39') |
•Make the vertical section of the exhaust vent as short as possible.
•Maintain the same vent pipe diameter from the heater flue to the vent termination.
Clearances
Manufacturer and | Enclosed | Unenclosed | |||
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Product | Hor. | Vert. | Hor. | Vert. | |
Noritz | 250mm (10") (sides) | 100mm | 75mm | 75mm | |
150mm (6") (bottom) | (4") | (3") | (3") |
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| 375mm (15") (top) |
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Protech FasNSeal | 200mm (8") (sides) | 100mm | 75mm | 75mm | |
100mm (4") (bottom) | (4") | (3") | (3") |
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| 300mm (12") (top) |
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Protech FasNSeal W2 | 150mm | 100mm | 75mm | 75mm |
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(6") | (4") | (3") | (3") |
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HeatFab SafTVent | 150mm | 150mm | 50mm | 50mm | |
(6") | (6") | (2") | (2") |
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200mm | 100mm | 25mm | 25mm | ||
(8") | (4") | (1") | (1") |
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200mm | 100mm | 25mm | 25mm | ||
(8") | (4") | (1") | (1") |
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These clearances are subject to change.
Refer to the UL listing for the proper clearances.
•The first vertical run from the top of the heater should be no longer than 0.9m (3').
•Make sure vent pipe is gas tight and will not leak. Use silicon sealant wherever necessary.
•Do not common vent or connect more than one appliance to this venting system.
•The total vent length including horizontal & verti- cal vent runs should be no less than 0.9m (3').
•Do not place any dangerous objects at the end of the exhaust vent and check that vent pipe is not blocked in any way.
•Steam (smoke) or water drops may come out from the end of the exhaust pipe. Select the location for the end of the vent so that steam is not visible, and the vent is not wet with drip- ping water.
•If snow is expected to accumulate, take care the end of the pipe is not covered with snow or hit by falling lumps of snow.
•Consult the vent pipe manufacturer's install- ation instructions for chimney connections.
Appliance Adapters
•Use the following adapters to connect the unit to the venting system.
Manufacturer and
Product
Protech FasNSeal
HeatFab SafTVent
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