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Inline Flue-Gas Exhausters
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Increase airflow through exhaust duct to improve furnace performance. Create a cutout in your duct, insert the blower wheel, and mount the housing to the duct. All have an open dripproof motor enclosure for relatively clean, dry, indoor locations. They cannot be used for sidewall venting applications.
Wall-Vent Flue-Gas Exhausters
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Often used for electric-to-gas conversions and renovations, these exhausters allow gas- or oil-fired equipment to be vented through a sidewall rather than a chimney. A thermostat signal starts the exhauster and a sensor ensures proper draft prior to operation. Exhausters have an open dripproof motor enclosure for relatively clean, dry, indoor locations. Use a reducer to vent through ducts with diameters up to 2" wider than the exhauster.
Flue-Gas Exhauster Hoods—A flue-gas exhauster hood (sold separately) is required for the exterior of the sidewall.
Flue-Gas Exhausters | Flue-Gas Exhauster Hoods | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For Furnace Heating Cap., BTU/hr | For Duct Diameter | Motor Speed, rpm | Max. Temp., ° F | Housing Material | Mounting Fasteners Included | Each | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
24V AC/120V AC—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 150,000 to 300,000 | 4" | 3,000 | 600 | Steel | Yes | 000000 | 0000000 | 0000000 | 0000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 300,000 to 600,000 | 6" | 3,000 | 600 | Steel | Yes | 000000 | 000000 | 0000000 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Barometric Draft Dampers
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These dampers improve furnace performance by automatically opening and closing to maintain a consistent airflow despite changing environmental conditions.
Single-Acting Damper—Single-acting dampers open inward to prevent strong drafts from pulling too much heat into the chimney vent.
Double-Acting Damper—Double-acting dampers open both inward and outward to relieve pressure caused by obstructions and downdrafts.
Steel | |||||||
|---|---|---|---|---|---|---|---|
Draft Damper Type | For Duct Size | Ga. | For System Type | Fitting Connection | Each | ||
| Single Acting | 5, 6, 7 | 26 | Coal, Oil | Press Fit | 0000000 | 0000000 | |
| Single Acting | 7, 8, 9 | 24 | Coal, Oil | Press Fit | 0000000 | 000000 | |
| Single Acting, Double Acting | 9, 10 | 24 | Coal, Natural Gas, Oil, Propane | Press Fit | 0000000 | 000000 | |
| Single Acting, Double Acting | 11, 12 | 24 | Coal, Natural Gas, Oil, Propane | Press Fit | 0000000 | 000000 | |
| Double Acting | 5, 6 | 26 | Natural Gas, Propane | Press Fit | 0000000 | 000000 | |
| Double Acting | 7, 8 | 26 | Natural Gas, Propane | Press Fit | 0000000 | 000000 | |
