Installation Guide
2
1.General Information
Property damage, personal injury or death can result if these instructions are not followed. They are a guide for
professional installers generally familiar with the installation and maintenance of heating equipment and related
vent systems.
Flex Vent 2" Kit is designed only for the installation inside of B-Vent as sleeve.
Do not use it for other installation method. Also do not use it outdoor.
Do not use for anything other than designated Tankless Water Heater (including the model manufactured by
others).
Flex Vent 2" Kit can be installed at zero clearance to combustible materials.
Appliances can be started up immediately after Flex Vent 2" Kit is installed and inspected.
Flex Vent 2" Kit systems expand and contract slightly during heating cycles and
must be installed following included instructions.
Keep Flex vent greater than 40F(5) during installation. Damage will occur if handled or
installed at lower temperatures.
Information regarding certification of "Flexible vent pipe and connections".
Standard(s)
UL-1738 Standard for Venting Systems
ULC-S636-08 Standards for type BH Gas Venting Systems
Product PP Flexible 2", PP Single Wall Pipe 2"
Brand name InnoFlue Flex - Centrotherm
Models IFVL, IFSF, IANS, ISEL, IACE
40°F
(5°C)