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Heating Appliances - Natural Gas / Propane / Oil
Furnaces, Steam Boilers, Water Boilers, Pool Heaters, Laundry, Building Heating Equipment, Gas Fireplaces, etc.
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CAT I
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Appliances operate with
0 or negative pressure
at the appliance outlet
and at temperatures where
condensation of flue gases IS NOT
likely.
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CAT II
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Appliances operate with
0 or negative pressure
at the appliance outlet
and at temperatures where
condensation of flue gases IS
likely. Few appliances
fall in this category today.
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CAT III
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Appliances operate with
positive pressure
at the appliance outlet and
at temperatures where
condensation of flue gases IS NOT
likely.
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CAT IV
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Appliances operate with
positive pressure
at the appliance outlet and
at temperatures where
condensation of flue gases IS
likely.
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Appliance vents @ 0 or negative pressure
NON-Condensing.
Preferred Product: B-VENT
Options: PSW, PIC, IPIC-1, -2, -4
Appliance vents @ 0 or negative pressure
CONDENSING.
Preferred Product; CORR/GUARD
Option: None
Appiance vents @ postive pressure
NON-Condensing.
Preferred Products: PSW, PIC, IPIC-1, -2, -4
Option: CORR/GUARD (Temp limitations)
Appliance vents @ postive pressure
CONDENSING.
Preferred Product: CORR/GUARD
Options: Consult Appliance Manufacturer
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