A
XES SC MANUAL
IOM-58
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June 14 R5
VENTING PRODUCTS OF COMBUSTION
Each heater must have its own vent system, and must not be connected to other venting systems or
chimney.
Use ‘C’ Vent. All joints must be secured with corrosion resistant screws or rivet, and sealed with sealant
and/or aluminum tape rated to 500°F (290°C).
Warning:
Do not use PVC, ABS or any other non-metallic pipe for venting.
Any run of single wall vent pipe passing through an unheated space should be insulated with insulation
rated for at least 550°F (280°C) to prevent condensing. In cases where condensing is expected, install a
Tee at the bottom of the vertical section, with a drain for condensate.
Horizontal lengths of the vent system must be installed and sloped ¼”per foot (2%) to prevent the
accumulation of condensate.
Maintain a minimum of 6” (150mm) clearance from any combustible material.
Do not install dampers or other restrictive devices in the flue vent pipe.
Figure 1: EngA Concentric Vent Termination
