Install Instructions

ManualsBrandsHart & Cooley ManualsPlumbing Supplies3" x 18" B Round Gas Vent Pipe (3RP18)

Type B Gas Vent - 3" to 12" Diameter

Installation Instructions

• If pipe assemblies are lowered into place from

above, sheet metal screws should be used to hold

the lock bands in place.

• Terminate the vent with a tall cone flashing (RTF),

storm collar (RS), and appropriate diameter cap.

Maintenance and inspection

Gas is a clean-burning fuel that typically does not

require maintenance of appliance vent system.

However, the liner must be inspected at least once a

year by a qualified inspector or installer at the same

time that the appliance is being inspected and

serviced. The cap snaps off for visual inspection of

the outlet area. Connector pipe should be removed to

examine the inlet at the base of the chimney. Look for

loose joints, debris, condensate or corrosion, and

clean or repair as required.

Combined vents

• For detailed instructions for combining two or more

appliances into a common vent, see the Gas Vent

Capacity Tables section in the application guide.

• Whenever possible, vents should be run directly

from collar of the appliance vertically out through

the roof in the most direct method available.

• In those cases where it is necessary or desirable to

combine the vent connectors of several gas-fired

appliances into a common vent, the vent connector

from each individual appliance should be arranged

to have as great a

vertical rise as

possible before

starting the lateral

run to the common

vent. If a

combined vent

cannot be used

because of

limitations in the connector rise or total vent height,

alternatives such as those illustrated (Figure 14)

may be used to secure greater rise or greater total

vent height. TYPE B GAS VENT CONNECTOR

must be used for Figure 14B.

Installation instructions for Hart & Cooley

UL-listed Type B gas vent adapters

The following table specifies the UL-listed adapters to

be used when changing between Hart & Cooley and

B-vent manufactured by others.

Other into Hart & Cooley vent

Assemble the

female end of

the adapter

over the male

end of the other

listed B-vent. Fully seat the adapter or provide a

minimum of 1-inch overlap. Tighten the screw in the

slips provided. (See Figure 15.)

Hart & Cooley vent into Other

Insert "Other" female end's inner

and outer inside RRA's inner and

outer. Slide together minimum of

1 inch to seat inner. Tighten the

screw. (See Figure 16.)

Other

Manufacturer

Pipe

Diameter

Other into

Hart & Cooley

Vent into

Other

Selkirk Metalbestos/

Household Mfg. Co.

3" - 6"

7" - 8"

RA or RPA

RRA

Metal Fab, Inc.

3" - 6"

7" - 8"

RA or RPA

RRA

American Metal

Products, Inc.

3" - 6"

7" - 8"

RA or RPA

RRA

General Products

Company, Inc.

3" - 6"

7" - 8"

RAA

RRA

Simpson Dura-Vent

3" - 6"

7" - 8"

RAA

RRA

THESE INSTRUCTIONS SHOULD

REMAIN AVAILABLE TO THE

HOMEOWNER AT ALL TIMES.

Figure 14

Figure 15

Figure 16