Desa FSBVBPC, FSBVBNC Installing Vent System in a Chase, Checking Vent Capacity, Chimneys

OWNER’S MANUAL

VENTING INSTALLATION

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Figure 25 - Vertical Venting Configuration Through Chimney

INSTALLING VENT SYSTEM IN A CHASE

A chase is a vertical boxlike structure built to enclose venting that runs along the out- side of a building. A chase is not required for such venting.

NOTICE: Treatment of firestops and construction of the chase may vary from building type to building type. These instructions are not substitutes for the re- quirements of local building codes. You must follow all local building codes.

Note: When installing in a chase, you should insulate the chase as you would the outside walls of your home. This is especially im- portant in cold climates. Minimum clear- ance between vent pipes and combustible materials such as insulation is 1".

CHECKING VENT CAPACITY

Complete all gas piping, electrical, and vent connections. After adjusting the fireplace and lighting the main burners, allow a couple of minutes for warm-up. Hold a lighted match just under the rim of the draft hood relief opening. Proper venting will draw the flame toward or into the draft hood. Im- proper venting, indicated by escape or spill- age of burned gas, will cause match to flicker or go out. Smoke from a cigarette will also be pulled into the draft hood if the vent is drawing properly.

CHIMNEYS

•Complete familiarity with chimney con- dition, height, size, clearance to combus- tibles and other factors is essential.

NOTICE: Consult the authority having jurisdiction in your area regarding masonry chimney vent- ing applications.

NOTICE: A complete chimney inspection by a qualified person should be performed.

•Appliances using B-vent connectors to vent into a masonry or factory-built chimney should not exceed 1 1/2 feet in length for every inch of connector diam- eter (3" vent connector has a maximum 4 1/2 foot length; 5" connector has maxi- mum 7 1/2 foot length).

•Oversized chimneys should be relined with appropriate listed relining systems.

•Cleanout access may be required.

Figure 26 - Venting Through a Side Wall

Figure 28 - Straight Installation into

Masonry Chimney

Figure 27 - Test for Proper Venting

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