Instructions / Assembly

System 636 Installation Methods

Concentric Vent Termination Kit

System 636 Pipe, Fittings, Termination Kits and Cements are

certified as a system and must be installed as such. Different

manufacturers have different materials, joining systems and

adhesives. Do NOT mix pipe, fittings, cements, or joining

methods from different BH Vent manufacturers, this can result in

unsafe conditions and will void the certification.

System 636 PVC/CPVC concentric vent kits are made from

certified compounds. PVC kits are rated to 65ºC maximum and

CPVC kits are rated to 90ºC maximum.

All termination kits must be located and installed in accordance

with local building code and CSA B149.1 Natural Gas and

Propane Installation Code.

45º

Concentric Vent

Termination Kits Include:

Dimension (Inches)

AB*C=

Nominal Pipe

Size

Material Concentric Kit Item # D E

PVC 2" x 16" 196005 29.0 16.5 3.5 2 2 7.38 1.75

CPVC 2" x 16" 197040 29.0 16.5 3.5 2 2 7.38 1.75

PVC 2" x 28" 196105 41.0 28.0 3.5 2 2 7.38 1.75

CPVC 2" x 28" 197033 41.0 28.0 3.5 2 2 7.38 1.75

PVC 2" x 40" 196125 53.0 40.0 3.5 2 2 7.38 1.75

PVC 3" x 20" 196006 36.1 20.0 4.5 3 3 8.75 2.25

CPVC 3" x 20" 197009 36.1 20.0 4.5 3 3 8.75 2.25

PVC 3" x 32" 196106 48.1 32.0 4.5 3 3 8.75 2.25

CPVC 3" x 32" 197107 48.1 32.0 4.5 3 3 8.75 2.25

PVC 3" x 44" 196116 60.1 44.0 4.5 3 3 8.75 2.25

CPVC 3" x 44" 197117 60.1 44.0 4.5 3 3 8.75 2.25

PVC 4" x 36" 196021 56.0 37.3 6.62 4 4 10.00 3.50

CPVC 4" x 36" 197021 56.0 37.3 6.62 4 4 10.00 3.50

Figure 9

Table 5

B* Dimension be may be shortened to a minimum of 12". Inner pipe (item 3)

must remain "F" inches longer than the outer pipe (item 4). Cut pipe ends

square and solvent weld as outlined in the System 636 installation manual.

C= Installation cutout should be at least 1/2" larger than dimension “C”.

Lengthening the units is not permitted.

1 Wye - (Concentric)

2 Rain Cap

3 Exhaust Vent Pipe (Inner)

4 Fresh Air Intake Pipe (Outer)

5 Stainless Steel Bolt & Nut