LAARS Heating Systems
Page 12
Figure 10. Minimum Venting Distance.
NOTICE
DO NOT COMMON VENT MASCOT LX UNITS.
Mascot LX units are never permitted to share a
vent with Category I appliances.
AVIS
NE PAS ÉVENT COMMUNE MASCOTTE LX
UNITÉS. Mascotte LX unités ne sont jamais
autorisés à partager un évent Catégorie I avec
les appareils.
3.2.1 About Common Venting
Allowable Polypropylene Vent Manufacturers
/ Trade Names
MFR (model number abbreviated*)
Centrotherm
DuraVent
Selkirk
InnoFlue
PolyPro
Polyflue
Single Wall Pipe
ISVLxxxx
xPPS-x
xPF-xx
Elbow
ESELxxxx
xPPS-E90
xPF-90
PVC adapter
ISAGxxxx
xPPS-AD
xPF-PVC-PF
Notes:
Only the above manufacturers and models have been approved.
Substitutes are not allowed.
Trade Names/Models
"x", "xx" and "xxxx" refer to variations in nominal size. See manufacturer's
catalog for a particular application.
These manufacturers samples have been tested and authorized to safely
operate with Laars equpment.
Contact Polypropylene manufacturer's distributor for complete model
number selection.
Installer must follow Polypropylene manufacturers installation instructions.
Example
Components
Manufacturers materials and models may not be mixed in the same
application.
Table 7. Allowable Vent Manufacturers
INSTALLATION STANDARDS
MATERIAL
UNITED STATES
CANADA
Stainless Steel
UL 1738
Venting must be ULC-S636 certified for use as
PVC, sch 40
ANSI/ASTM D178
venting material. The venting material must be chosen
CPVC, sch 40
ANSI/ASTM F441
based upon the intended application of the boiler.
Polypropylene
UL1738 or ULC-S636
Table 8. Required Exhaust Vent Material.
