Instructions / Assembly

System 636 Installation Methods
31
Typical Concentric Vent Kit Spacing
For multiple horizontal installations, keep Concentric Vent Kit gaps
close (up to 4" apart) or over 24" apart.
These guidelines are not appliance specific; OEM manufacturers may
supply spacing dimension specific to each appliance. In this case the
manufacturer’s recommendations shall supersede those described
herein.
To prevent flue gas from recirculating, IPEX recommends installing
multiple concentric kits as follows:
• 2 concentric vent kits: either maintain a 24" minimum distance apart, or have the rain caps no more than 4" apart
• 3 concentric vent kits:
Option 1 – keep all 3 kits at least 24" apart.
Option 2 – group 2 kits close together up to a maximum of 4" apart and the third kit over 24" apart.
• 4 or more concentric vent kits:
Option 1 – keep all concentric kits at least 24" apart.
Option 2 – group the CVK’s in pairs, having 2 kits close together to a maximum of 4" apart, keeping the next grouping of 2 kits over
24" away as per Figure 12.
The dimensions shown in Figure 12, are distances between the edges of the rain caps.
4”
MAX
4”
MAX
24” MIN
24” MIN
to next CVK
Sidewall Termination for Multiple Horizontal
Concentric Vent
Figure 12: Typical CVK Spacing